Your Hope, Our Mission

A multidisciplinary team with decades of immunotherapy expertise, fully committed to you and your journey.

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Our Mission & Approach

Our mission goes beyond treating cancer; we aim to give you the knowledge and support needed to understand your disease and overcome it. You are at the center of everything we do. Our highly qualified, compassionate medical and scientific team guides you and your loved ones through every step of treatment.

Every specialist at Immunotherapy NK is chosen for clinical excellence, proven leadership in oncologic immunotherapy, and a deep vocation for service. With decades of combined experience, they deliver care that unites human values with cutting-edge science.

Female patient smiling during a personalized consultation at Immunotherapy NK Cancer Center – expert NK cell therapy in Puerto Vallarta, Mexico
dr.-ernesto-romero-lopez-immunotherapy-regenerative-medicine

Founder and CEO

Ernesto Romero Lopez

Meet Dr. Romero
Dr. Luis Padilla Specialist in Regenerative Medicine and Stem Cells

General practitioners

Luis Francisco Padilla

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Dr. Manuel Rosas Specialist in Regenerative Medicine and Stem Cells

General practitioners

Jose Manuel Rosas

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Dr. Alejandra Specialist in Regenerative Medicine and Stem Cells

General practitioners

Alejandra Rojas Torres

Meet Dr. Rojas
Dr. Karla Castolo Cardiologist in Puerto Vallarta

Cardiologist

Karla Moraima Castolo

Meet Dr. Castolo
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Specialist in diagnostic and therapeutic imaging

Edith Andrade

Meet Dra. Andrade
doctor javier arenas santeliz stem cell therapy specialists

General practitioners and Gerontological Rehabilitation

Javier Arenas Santeliz

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Immunotherapy Team Manuel Berecochea.jpeg

General Medicine, Anesthesiology, And Pain Medicine

Manuel E. Berecochea

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FRANCISCO RAFAEL HERNANDEZ PEREZ

Surgeon In Orthopedics And Traumatology

Francisco Rafael Hernández

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Immunotherapy Team Edgar Partida.jpg 1

Medical Specialist in Traumatology and Orthopedics

Edgar Jesús Partida

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Immunotherapy Team Jose Cortes 1 1

General Medicine And Epidemiology

José Federico Cortés López

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ALBERTO PARRA BARRERA

Ph.D. in Chemical-Biological Sciences

Alberto Parra Barrera

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Doctor Raul Rosales Ibanez e1711731681902

Ph.D. of Science in Tissue Engineering in Medicine and Dentistry

Raúl Rosales Ibáñez

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Jorge Cadena Iniguez Ph.D. in Botany

Ph.D. in Botany

Jorge Cadena Íñiguez

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Aguiniga Sanchez Itzen Ph.D. in Biological Sciences of de Immunotherapy Regenerative Medicine

Ph.D. in Biological Sciences

Itzen Aguiñiga Sánchez

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Edelmiro Santiago Osorio Ph.D. in Biological Sciences of de Immunotherapy Regenerative Medicine

Ph.D. in Biological Sciences

Edelmiro Santiago Osorio

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Dra. Arely Montserrat Gonzalez Gonzalez

Ph.D. of Science in Infectomics and Molecular Pathogenesis

Arely Montserrat González

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Maria Guadalupe Ramirez Padilla

Bachelor of Science in Biology

María Ramírez

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Bachelor of Science in Biology

Ana Maria Altamirano

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Scientific & Research Team

Alberto Parra Barrera, Ph.D.

Ph.D. in Chemical-Biological Sciences

Alberto Parra Barrera

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Raúl Rosales Ibáñez, Ph.D.

Ph.D. of Science in Tissue Engineering in Medicine and Dentistry

Raúl Rosales Ibáñez

Meet Ph.D Rosales
Jorge Cadena Iñíguez, Ph.D.

Ph.D. in Botany

Jorge Cadena Íñiguez

Meet Ph.D Cadena
Itzen Aguiñiga Sánchez, Ph.D.

Ph.D. in Biological Sciences

Itzen Aguiñiga Sánchez

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Edelmiro Santiago Osorio, Ph.D.

Ph.D. in Biological Sciences

Edelmiro Santiago Osorio

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Ph.D. in Biological Sciences

Modesto Gómez López

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Dental Surgeon & PhD Candidate in Biotechnology

Amairany Rodriguez Navarrete

Meet Ph.D. González
Maria Guadalupe Ramirez Padilla

Bachelor of Science in Biology

María Ramírez Padilla

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Bachelor of Science in Biology

Bernardo José de Santiago 

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Bachelor of Science in Biology

Ana María Altamirano

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Bachelor of Science in Biology

Adrián Cruz Olivares

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Regenerative Medicine Specialists

dr.-ernesto-romero-lopez-immunotherapy-regenerative-medicine

Founder and CEO

Ernesto Romero Lopez

Meet Dr. Ernesto Romero
Dr. Luis Padilla Specialist in Regenerative Medicine and Stem Cells

General practitioners and regenerative medicine specialist

Luis Francisco Padilla

Meet Dr. Padilla
Dr. Manuel Rosas Specialist in Regenerative Medicine and Stem Cells

General practitioners and regenerative medicine specialist

Jose Manuel Rosas

Meet Dr. Rosas
doctor javier arenas santeliz stem cell therapy specialists

General practitioners and Gerontological Rehabilitation

Javier Arenas Santeliz

Meet Dr. Arenas
Dr. Alejandra Specialist in Regenerative Medicine and Stem Cells

General practitioners

Alejandra Rojas Torres

Meet Dr. Rojas
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Specialist in diagnostic and therapeutic imaging

Edith Andrade

Meet Dra. Andrade
Dr. Karla Castolo Cardiologist in Puerto Vallarta

Cardiologist

Karla Moraima Castolo

Meet Dr. Castolo
Immunotherapy Team Jose Cortes 1 1

General Medicine And Epidemiology

José Federico Cortés López

Meet Dr. Cortés
Immunotherapy Team Manuel Berecochea.jpeg

General Medicine, Anesthesiology, And Pain Medicine

Manuel E. Berecochea

Meet Dr. Berecochea
Immunotherapy Team Edgar Partida.jpg 1

Medical Specialist in Traumatology and Orthopedics

Edgar Jesús Partida

Meet Dr. Partida
FRANCISCO RAFAEL HERNANDEZ PEREZ

Surgeon In Orthopedics And Traumatology

Francisco Rafael Hernández

Meet Dr. Hernandez
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Dr. Ernesto Romero López

Founder and CEO of Immunotherapy Regenerative Medicine, Dr. Ernesto Romero López leads the development of advanced regenerative and cellular therapies that keep patient well-being at the heart of every protocol. A graduate in Medicine from the Universidad Autónoma de Nayarit, he enhanced his expertise with forensic-medicine training at the Jalisco Institute of Forensic Sciences, postgraduate studies in regenerative geriatric medicine at Nordic University, and a master’s degree in regenerative medicine from the Universidad Católica de Murcia in Spain.

For more than two decades, he has bridged Latin-American and European research, directing the biotechnology institute Bioplenum and collaborating on clinical studies in Lyon that explore cellular immunotherapies for complex metabolic, neurologic, and autoimmune disorders. As principal investigator in multiple international protocols, he has applied next-generation cell-based technologies to conditions such as diabetes, ischemic injury, amyotrophic lateral sclerosis, arthritis, and chronic kidney disease—always prioritizing safety, efficacy, and long-term functional recovery.

Recognized as the Mexico and Latin America representative for firms such as HemoFenix France and Kimicor Pharma, and as General Director of Krebs International and the foundation Immunotherapy for México A.C., he facilitates ethical access to innovative biologic treatments. His blend of scientific rigor, cross-cultural experience, and patient-centered philosophy guides the multidisciplinary team in Puerto Vallarta, ensuring that each individual receives a personalized, evidence-driven pathway toward better health and quality of life.

Dr. Luis Francisco Padilla Gómez

Training and Credentials

  • Medical Surgeon and Midwife
    University of Guadalajara, C.U.CS (University Center for Health Sciences), 2009-2012
    Professional License DGP: 9429443, PEJ: 278713

Professional Experience

  • Physician – IMPREP and National PrEP Program, SETAC (2021)
    Participation in the international implementation of HIV Pre-exposure Prophylaxis (PrEP) in Mexico. Initial assessment and specialized clinical follow-up for qualified program users. Medical consultation focused on HIV and other sexually transmitted infections.

  • Emergency Physician – Hospiten Puerto Vallarta (2018-2021)
    Comprehensive patient evaluation in emergency scenarios for accurate diagnosis, immediate treatment, and hospitalization decisions or outpatient care recommendations.

  • Emergency and General Physician – SafeCare Tourist Medicine (2018 – Present)
    Home-based emergency medical services, general consultations, and specialized care provided to tourists and international residents.

  • Tourist and Occupational Medicine Physician – LIVELINESS (San Javier Hospital) (2017-2018)
    Direct medical care provided at patient residences, workplaces, or recreational locations. Comprehensive services including primary healthcare, emergency response, preventive medical check-ups, and timely treatments.

Dr. José Manuel Rosas Godínez

Originally from Puerto Vallarta, Jalisco
Graduated from the Autonomous University of Guadalajara
Working in tourism medicine since 2019
Working in regenerative medicine since 2021
English language proficiency

Alejandra Rojas Torres

General Practitioner with experience in providing high-quality care to patients in various clinical settings. Demonstrated ability to diagnose and treat a wide range of health conditions. Expert in maintaining and improving patient health through regular evaluation, diagnosis, and treatment of diseases and injuries.

Karla Moraima Castolo Sánchez

Dr. Karla Moraima Castolo Sánchez is a distinguished cardiologist and specialist in cardiac rehabilitation. She completed her training as a Surgeon and Midwife at the University of Guadalajara and specialized in Clinical Cardiology at the National Medical Center West of the Mexican Social Security Institute. Subsequently, she obtained an advanced specialty in Cardiac Rehabilitation and Secondary Prevention at the National Institute of Cardiology “Ignacio Chávez” of the Autonomous University of Mexico.

Dr. Castolo Sánchez has worked as a cardiologist at the Mexican Social Security Institute and at Hospiten. She has co-authored various articles and presentations at major cardiology conferences, including the Mexican Congress of Cardiology and the ESC Congress in Munich. She is also a co-author of a chapter in the book “Mexican Clinics of Cardiology, Cardiovascular Prevention.”

She is an active member of the Mexican Society of Cardiology and the Mexican Society for Heart Care, as well as an international associate of the American College of Cardiology and a professional member of the European Society of Cardiology. She holds certificates in Clinical Cardiology and advanced specialization in Cardiac Rehabilitation, both issued by the Mexican Council of Cardiology.

Javier Arenas

Javier Arenas is a distinguished surgeon with education from the University of Guadalajara, further enhanced by master’s degrees in Hospital Institutions Management and Gerontological Physiotherapy. He holds certifications in life support and diplomas in alternative therapies such as serum therapy and bioregulatory nutrition. Specialized in health service administration, gerontological rehabilitation, and general medical care, Javier has played key roles in emergency care, preventive programs, and quality management in health centers. His experience spans working in hospitals, clinics, sports facilities, and as an occupational physician, standing out for his ability to lead multidisciplinary teams in challenging environments.

MANUEL E. BERECOCHEA

Graduated from the Autonomous University of Nayarit from the School of Human Medicine

Title: Medical Surgeon. Prof. ID 2809292. DGP.

Medical Specialty in Anesthesiology

Graduated from the Western National Medical Center (CMNO) of Guadalajara, Jal.

Degree endorsed by the University of Guadalajara (U de G). Professional Specialty Certificate 5554284. DGP.

DR. FRANCISCO RAFAEL HERNANDEZ PÉREZ

Title as a medical specialist in traumatology and orthopedics from the Autonomous University of Sinaloa (uas).

Certificate of studies as a specialist in traumatology and orthopedics by the Institute of Security and Social Services of State Workers (ISSSTE).

Certified by the Mexican Council of Orthopedics and Traumatology (cmot), 2017 valid until 2022.

ACADEMIC TRAINING

Specialty in traumatology and orthopedics
Issste Culiacán Regional Hospital “Dr. Manuel Cardenas de la Vega.

Faculty of Medicine, Autonomous University of Sinaloa.
Generation 2013-2017
Surgeons and midwives graduated from:
Faculty of Medicine, Autonomous University of Nuevo León, generation 2005 – 2011.

Undergraduate internship: “José e. González”, Monterrey Nuevo Leon from August 2008 to July 2011.

Social service: secretary of health, health jurisdiction no. 2, assigned to c.s.r. mine, in mine, Nuevo León, from August 2011 to July 2012.

WORK EXPERIENCE

PUNTA DE MITA HOSPITAL, PUNTA MITA, NAYARIT (2018 TO DATE).
POSITION HELD: DOCTOR ATTACHED TO THE TRAUMATOLOGY, ORTHOPEDICS AND SPINE SURGERY SERVICE.

PUERTO VALLARTA REGIONAL HOSPITAL, JALISCO, (2017 – 2020).
POSITION HELD: DOCTOR ATTACHED TO THE TRAUMATOLOGY AND ORTHOPEDICS SERVICE, EVENING SHIFT.

REGIONAL HOSPITAL ISSSTE CULIACÁN, SINALOA.
POSITION HELD: RESIDENT PHYSICIAN
FUNCTIONS PERFORMED: MEDICAL-SURGICAL CARE IN THE SPECIALTY OF TRAUMATOLOGY AND ORTHOPEDICS.

EMME MEDICAL EMERGENCIES
POSITION HELD: GENERAL PHYSICIAN
FUNCTIONS PERFORMED: FIRST CONTACT MEDICAL ATTENTION.

PHARMACIES SAN ANTONIO, MTY NUEVO LEON
POSITION HELD: GENERAL PHYSICIAN. CONSULTATION MANAGER

ARTICLES AND SERVICES OF HEALTH AND INDUSTRIAL SAFETY ASSSI
POSITION HELD: GENERAL PHYSICIAN
PERFORMED FUNCTIONS: APPLICATION OF MEDICAL EXAMINATIONS BOTH PERIODIC AND ENTRY TO PERSONNEL EMPLOYED IN DIFFERENT COMPANIES. GENERAL CONSULTATION FOR EMPLOYEES WITHIN THE COMPANY.

VASCULAR LASER CLINIC: AS ASSISTANT PHYSICIAN IN PROCEDURES RELATED TO THE ELIMINATION OF VARICOSE VEINS (SAPHENECTOMY LASER, MINIPHLEBOTOMY, ETC.)

H. FIRE DEPARTMENT, SALTILLO COAHUILA AUGUST 2004 – JULY 2005
POSITION PERFORMED: FIREFIGHTER – PARAMEDIC

DR. EDGAR JESÚS PARTIDA DE HARO

Specialist in traumatology and orthopedics. Sports injuries. Treatment of joint diseases in older adults.
Foot and ankle surgeon.
Shoulder surgery.
Minimally invasive orthopedic surgery.

Dr. José Federico Cortés López

Graduated from the Autonomous University of Nayarit. Hospital General Tepic Internship.
Certified as a General Practitioner by the National Regulatory Committee for General Medicine.
Diploma in basic epidemiology.
Diploma in Pediatrics.
Diploma in Gynecology.
Specialty in health service administration.
Head of Sanitary Jurisdiction 1 in Nayarit.

Parra Barrera Alberto

Doctorate in Chemical-Biological Sciences National School of Biological Sciences, date of degree obtained: July 3, 2009

Projects approved by SEPI of IPN as a participant

2013 Regenerative medicine in bone: polyphenolic derivatives as adjuvants in the treatment of osteoregenerative diseases by inducing differentiation of human bone marrow mesenchymal stem cells into osteoblasts.

2014 Regenerative medicine in the heart: the application of mesenchymal stem cells in an animal model with acute myocardial infarction modifies the expression of metalloproteinases and tissue structure, reducing the damage caused by ischemia.

2014 In vitro evaluation of the activation of human NKT lymphocytes in infection by Brucella abortus

2014 Reprogramming of cellular progenitors in acute T lymphoblastic leukemia induced by SCL and LMO1 oncogenes in transgenic mice.

2015 Effect of dehydroepiandrosterone (DHEA) on the expression of the genes BMP2, SPARK, and RUNX2 as osteogenic differentiation markers in bone marrow-derived mesenchymal stem cells

As project director

2017 In vitro effect of the methanolic extract of Gymnosperma glutinosum on three tumor cell lines.

2018 Effect of titanium dioxide nanoparticles on proliferation, membrane markers, and phagocytosis in human endometrial mesenchymal stem cells

Published articles

1.- Successful creation of a Neoesophagus through Tissue Engineering in an Animal Model (2008) Mexican Journal of Pediatric Surgery. Vol. 15, No. 2, April-June

2.- Autologous mesenchymal stem cells and autologous skin graft for treatment of a chronic ulcer secondary to type 2 diabetes mellitus (2015) Surgery and Surgeons. Vol.83. No. 6

3.- Inhibition of the Na+/H+ antiporter induces cell death in TF-1 erythroleukemia cells stimulated by the stem cell factor (2015) Journal of Cytokine 75, 142–150.

4.- Internalization of titanium dioxide nanoparticles by glial cells is given at short times and is mainly mediated by actin reorganization- dependent endocytosis (2015). Neurotoxicology 51: 27– 37.

5.- Effect of dehydroepiandrosterone on expression of BMP2, SPARC, and RUNX2 in human bone marrow mesenchymal stem cells (2016). Mexican Journal of Chemical Engineering, vol.15. No. 1.

6.- Comparison between mesenchymal stem cells obtained from bone marrow, adipose tissue, and Wharton’s jelly based on the criteria of the ISCT. Mexican Journal of Biomedical Engineering. Vol. 38 | No. 1 | January-April 2017 | pp280-287

7.- Effect of conditioned medium from H9C2 cell line treated with dehydroepiandrosterone and exposed to damage on the motility of bone marrow mesenchymal stem cells Mexican Journal of Biomedical Engineering, Vol. 38 | No. 1 | January-April 2017 | pp 256-263.

8.- Effect of Dehydroepiandrosterone and Tria-mcinolone Acetonide on the 3T3-L1 cell line Mexican Journal of Biomedical Engineering. Vol. 38 | No. 1 | January-April 2017 |pp 288-296.

9.- How infectious agents are involved in childhood leukemia (2017). Archives of Medical Research, 48:305-315

Dr. Raúl Rosales Ibáñez

Bachelor’s Degree: Dental Surgeon from the Faculty of Stomatology, UASLP (1991-1996).
Specialization and Sub-specialization:

Diploma of Specialist from the Faculty of Dentistry, Popular Autonomous University of the State of Puebla (2000-2001).
Doctorate:

Doctor of Science in Tissue Engineering in Medicine and Dentistry, University of Granada, Spain (2005-2008).

Dr. Raúl Rosales Ibáñez has supervised more than 11 bachelor’s theses, 11 master’s theses, and 12 doctoral theses, and has served as an examiner, panel member, or jury in more than 25 theses of various academic levels. In addition, he is responsible for international donations in instances such as CONACyT and various UNAM programs, including PAPIIT, PAPIME, and PAPCA. Currently, he leads the Laboratory of Tissue Engineering and Translational Medicine at the UNAM Dental Clinic, standing out for his commitment to education and advanced research in medicine.

Jorge Cadena Íñiguez

Is a leading researcher and academic in botany and agronomy, with a notable contribution to scientific knowledge and sustainable agricultural development. Throughout his career, he has published over 109 scientific articles and books, obtained 6 process patents, and registered 19 plant varieties. He is renowned for his leadership in technological innovations, with 17 developments, and his crucial role in training 49 postgraduate talents. He has driven the creation of 87 rural enterprises and has been recognized with academic distinctions and awards, including the Miguel Alemán Valdés Prize for innovation. Dr. Cadena has also made significant contributions to agricultural science and practice through his involvement in important international projects, standing out for his work in biodiversity conservation and agricultural resource management.

Aguiñiga Sánchez Itzen

He began his academic career in Biology at the Faculty of Higher Studies “Zaragoza”, UNAM, where he completed his undergraduate studies, presenting a thesis on the effect of sodium caseinate on the proliferation and differentiation of myeloid cell lines. He continued with a Master of Science at the Postgraduate College, researching the antileukemic potential of Sechium spp. genotypes, and later expanded his specialization with a Master in Nutrition and Food-Drug Interactions at the University of Barcelona, focusing his work on the relationship between nutrition and medicine. His doctoral training began with a Doctorate in Sciences at the Postgraduate College, where he was recognized for his research on the antitumor effect of Sechium P. Browne, followed by a Doctorate in Education at UTEL University, demonstrating an exceptional commitment to scientific research and education.

Edelmiro Santiago Osorio

He began his academic career in Biology at the National School of Professional Studies “Zaragoza”, UNAM, presenting a thesis on the effect of lymphocytes and monocytes on cell proliferation. He furthered his education with a Master’s in Science (Biology) at the Faculty of Sciences, UNAM, expanding his specialization in the field. His education progressed with a Doctorate in Science (Biology) at the same institution, focusing on the study of free radicals in the cellular defense system and DNA damage. His doctoral research explored the induction of Fc receptor expression by Interleukin 1 in normal and leukemic myeloid cells, establishing his profile as a distinguished scientist in biology.

Arely Montserrat González

Dental health professional with advanced training, including a Bachelor’s degree in Dental Surgery and a Doctor of Science in Infectomics and Molecular Pathogenesis. Dedicated to the research and application of advanced techniques in cellular and molecular biology, with specialization in tissue engineering and mesenchymal stem cell differentiation. University education and advisory roles in research projects have significantly contributed to scientific advancement and institutional development, promoting best practices in oral health.

María Guadalupe Ramírez Padilla

Graduated from the Faculty of Higher Studies Zaragoza, UNAM, with a Bachelor’s degree in Sciences and recognition for academic excellence in inter-school competitions.

Specialized in biology and in vitro culture management, with practical experience in sugarcane plant production and a proven track record of technical skills in hematopoiesis and leukemia, including the handling of various cell lines and laboratory animals.

Co-author of an international scientific publication contributing to the understanding of leukemia treatment, highlighting a commitment to applied research and the advancement of knowledge in the oncology field.

Ana María Altamirano Morales

Biologist graduated from UNAM with experience in biomedical research focused on patient health. She has worked at UMIEZ FES-Zaragoza, contributing to studies on diabetes and liver cirrhosis, and applying techniques such as ELISA, BrdU, flow cytometry, and cell culture. Her work combines scientific rigor with empathy, coordinating teams, ensuring quality processes, and translating laboratory findings into clinical insights that provide clarity and confidence for each treatment.