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WesternU / College of Osteopathic Medicine of the Pacific (COMP) and COMP-Northwest

College of Osteopathic Medicine of the Pacific

Our students are resilient, innovative, and well prepared for an exciting and rewarding future in health care.

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2024 – Postgraduate Residency Placement

Students train at the Pomona Fairplex during the pandemic

Doctor of Osteopathic Medicine

Doctors of Osteopathic Medicine (DO) see patients, prescribe medications, perform surgeries, and deliver babies in hospitals, medical centers, and offices across the United States and overseas. Whether they are primary care providers or specialists, DOs use all the standard tools of modern medicine, but also have additional therapeutic modalities with which to care for their patients. Our students thrive in a culture of patient-focused care because they practice on a foundation of professionalism, benevolence, and respect. They understand that while they practice the art of medicine with their heads, they must never forget to use their hearts.
Doctor of Osteopathic Medicine – California and Oregon (DO)

We inspire, in a humanistic tradition, technically competent, culturally sensitive, professional and compassionate physicians who become lifelong learners.

aoa, logo WesternU COMP & COMP-Northwest is Fully Accredited and Achieved the Maximum 10 years Accreditation with Exceptional Outcome during 2022 visit.

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Message from the Dean Lisa Warren, DO MBA

I am a proud alumnus of WesternU/COMP, deeply passionate about osteopathic medicine, pediatric health, and the wellness of physicians and trainees. I am honored to serve in the role as Dean to support and advance our mission, ensuring the success and well-being of our entire community.

At COMP and COMP-NW, we are dedicated to offering a comprehensive and enriching education that equips students to excel in the ever-evolving medical field. Our curriculum is designed to foster critical thinking, enhance clinical skills, and promote compassionate patient care, ensuring our graduates become well-rounded osteopathic physicians ready to tackle the challenges of modern healthcare.

With state-of-the-art facilities, a cutting-edge simulation center, interprofessional collaboration, and excellent clinical experiences, our graduates are prepared to deliver compassionate, high-quality, patient-centered care. Our faculty members at COMP and COMP-NW are leaders in their fields, committed to mentoring and guiding students throughout their medical journey. They bring a wealth of knowledge, experience, and a dedication to excellence in teaching, patient care, and research.

We welcome you to come visit COMP and COMP-NW and learn more about our college and university.

With gratitude,
Dr. Lisa Warren


The Health Education Center (HEC) and Esplanade at dusk, Thursday Jan. 7, 2010. The new 180,000-square-foot HEC building on the campus of Western University of Health Sciences in Pomona opened for classes Jan. 4.

About the College

At the College of Osteopathic Medicine of the Pacific (COMP) and COMP-Northwest, we focus on one program, the Doctor of Osteopathic Medicine. This means we are 100% dedicated to helping you fulfill your calling to become the doctor you are meant to be. Each student journey is slightly different, because each student is different – yet our graduates obtain the same outcome beyond the DO title: Rooted in Humanism, you will find your authentic self – a place to heal with your head and your heart.
Learn about the College of Osteopathic Medicine of the Pacific (COMP) and COMP-Northwest
Badge reading "Best Grad Schools U.S. News & World Report Medical Most Graduates in Primary Care 2024" on a gray background.

Tier 1 Medical School for Primary Care

WesternU’s COMP & COMP-Northwest is one of only 15 institutions and one of only two Osteopathic Medicine schools named a Tier 1 Medical School for Primary Care by U.S. News & World Report 2024. WesternU could not be more proud of its faculty, administration, staff and students for this incredible achievement. WesternU has also been recognized for the most graduates in Primary Care and for Serving Rural Areas. This is affirmation of our commitment to creating healthy communities.
Read Article

What is a D.O.?

  • Stephanie White, DO
  • Mandilin Hudson, DO
  • Rebecca Giusti, DO
  • Gilbert Hernandez, OMM Fellow
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    The future of medicine magazine

    The Future of Medicine Magazine

    The College of Osteopathic Medicine of the Pacific (COMP)-Northwest and COMP (California) have launched a new digital edition of the Future of Medicine magazine. The inaugural digital edition explores technology in medical education: AI, Research, Simulation, Telemedicine. The digital magazine also allows us to present insightful podcasts and videos from our outstanding faculty and staff. This marks an exciting new chapter for our COMP community.
    Explore the Inaugural Digital Edition

    National Recognition

    In its latest rankings of top U.S. medical schools, U.S. News & World Report has named Western University of Health Sciences a Tier 1 institution for primary care training. The 2024-2025 rankings feature a new methodology, with medical schools being placed into one of four tiers. Tier 1 institutions were in the 85th percentile or higher of medical schools ranked.

    The College of Osteopathic Medicine of the Pacific (COMP) and COMP-Northwest received a Tier 1 designation for Best Medical Schools: Primary Care. WesternU is one of only 15 institutions in the top tier for primary care and one of only two osteopathic medicine schools.

    Tier 1
    Best Medical Schools: Primary Care

    Tier 4
    Best Medical Schools: Research

    Why is this important?

    WesternU is one of more than 800 institutions with graduate schools surveyed by U.S. News & World Report on an annual basis. WesternU’s COMP and COMP-Northwest is recognized among the best 123 Medical Schools surveyed in the United States. This national recognition speaks to WesternU’s indicators of excellence that ultimately lead to student success.

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    Sarkaria Family Patient Simulation Suite

    The Sarkaria Family Patient Simulation Suite is a 6,000 square foot innovative learning space with state-of-the-art equipment that provides WesternU students with the highest quality medical simulation experiences.
    Take a tour
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    Student, Faculty and Alumni Spotlight

    Many of our students, faculty, staff and alumni form connections and bonds that last a lifetime. Meet some of them here!
    Student, Faculty and Alumni Spotlight
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    Student Spotlight
    Mayting Chen, DO2027
    Student DO of the Month

    “May deserves SDOM for all the work she puts in for the rest of the class. Orienting to 3rd year has been stressful and there are so many resources scattered in various documents, powerpoints, and links and I have to search all over to find the information I am looking for. May does the work to organize the information, summarize, and include it in our class discord, so that we only have to look in one place for all the information we need. She truly goes above and beyond and the entire class benefits as a result. Whenever I have a question, May will go out of her way and do an immense amount of work just to make sure that my question is answered without anyone asking or expecting her to do so. May is generous, takes initiative, and is a role model for the rest of the class. It is an honor to have her as a friend and colleague.” more…

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    Faculty Spotlight
    Andrew Pumerantz, DO, MPH

    As Professor of Population Health Science, Internal Medicine, and Infectious Disease, Dr. Pumerantz has reached across disciplines and institutions to meld the fields of osteopathic medicine and public health for COMP and COMP-NW students. In 2021, he and his faculty colleagues from the public health program in the School of Community and Global Health at Claremont Graduate University (CGU) launched a uniquely designed DO/MPH Dual Enrollment Program that embodies population health science thinking. Professor Pumerantz designed the new dual enrollment program so that students could concurrently enroll in online MPH courses at CGU upon entering COMP and COMP-NW and then be able to complete both degrees in four years without the need to delay their timeline to residency. The dual enrollment program has enrolled more than 50 students since its inception and is forming its fourth cohort for this summer and fall. Continue reading the Pumerantz spotlight

    A man and woman standing in front of a wall of plants.
    Alumni Spotlight
    Niloofar Khatibi, DO & Chris Arnold, DO ’01

    We are featuring one of our many alumni couples who met and fell in love at COMP! “After 24 years of marriage that was filled with raising 2 beautiful children and practicing family medicine, we often reminisce over our time spent at the Western University of Health Sciences. We met at the romantic anatomy lab and grew to love one another while studying in the library – also, so very romantic! This beautiful relationship led us to our big day in June 2000 as we both completed our 3rd year of medical school. Continue reading Khatibi’s Story

    Second-year College of Osteopathic Medicine of the Pacific (COMP) student Azaria Lewis, MSMS ’19, serves as the president of the White Coats for Black Lives (WC4BL) WesternU Pomona Chapter. It is among her many leadership roles as a student. Photographed on the Pomona campus Oct. 7, 2020. (Jeff Malet, WesternU) Second-year College of Osteopathic Medicine of the Pacific (COMP) student Azaria Lewis, MSMS ’19, serves as the president of the White Coats for Black Lives (WC4BL) WesternU Pomona Chapter. It is among her many leadership roles as a student. Photographed on the Pomona campus Oct. 7, 2020.

    Commitment TO DIVERSITY

    We are focused on seamless integration of DEI consciousness in our curriculum, recruitment and successful admission of students from diverse groups, engagement and leadership development of students from diverse groups, recruitment and advancement of employees of diverse groups, active engagement in DEI research, development of funding sources for scholarships, recruitment and retention efforts, and celebrations of local, national and global diversity.
    Diversity, Equity and Inclusion

    Signature Programs

  • grpahic of black leather bag with stethoscope, and ipad Digital Doctor Bag
  • COMP DEI website
  • graphic of railroad tracks with text displaying as lognitudinal tracks, involve me and I learn Longitudinal Tracks
  • Icon for MEDwell MEDWell
  • DO/MPH Dual Enrollment Program
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    Join the Team

    Interested in joining our talented team of Administration, Faculty and Staff committed to educating our incredible students?
    Learn more
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    Give and Receive

    Help us continue to help our students succeed as medical providers dedicated to a scientific and humanistic approach to healing. We will all benefit by having healthier communities around us.
    Give to COMP

    TAKE THE NEXT STEP

    Your journey to an exciting career in health care is just getting started. Please review the program admissions requirement or request more information and we’ll reach out to you. You may also consider scheduling a virtual advising appointment. We look forward to meeting you and discussing your goals!

    UPCOMING EVENTS

    All Events
    WesternU Health

    WesternU Health Teaming up for your Health

    WesternU Health is WesternU’s clinical teaching facility. We serve residents in the Pomona Valley, Palm Desert, West Los Angeles, and Portland, Oregon areas. Our WesternU Health doctors are dedicated to meeting the medical needs of our growing and diverse local populations. We offer language assistance for non-English speakers and make every effort to communicate effectively with all people whom we serve. Services include: Eye Care, Dental Care, Foot & Ankle Health Care, Limb Preservation Care, Primary Medical Care, Pharmacy, Travel Health Care, and Medical Specialty Care.

    Find a provider or schedule an appointment!
    WesternU Health
    WesternU Health Oliver Station (Portland)
    WesternU Health Pomona Virtual Tour

    WESTERNU RECENT NEWS

    Students in white coats stand and read from booklets in an auditorium filled with people.

    WesternU welcomes more than 1,000 students with encouragement and inspiration

    Two women smile while holding red signs indicating their medical residency matches. One sign reads "CHLA - Pediatrics" and the other reads "AltaMed - Family Medicine.

    WesternU COMP and COMP-Northwest ranked in U.S. News & World Report’s top tier for primary care

    A group of five medical professionals in lab coats and gloves engage in a discussion in a laboratory setting, surrounded by shelves with equipment and supplies.

    WesternU COMP professor receives NIH grant to study potential protections against TB meningitis

    A woman with long hair sits at a desk, smiling, with a magazine and a notebook in front of her. The background shows a large window and a plant.

    WesternU COMP alumna Lisa Warren, DO ’01, named COMP and COMP-Northwest Dean

    A group of graduates in caps and gowns walk in a procession. One graduate at the front smiles while holding a diploma.

    WesternU celebrates Class of 2024 ‘elite group of healers’ at Commencement

    A group of five graduates in green and black academic regalia standing together, with one graduate in the center pointing towards the camera.

    WesternU opens first of five Commencement ceremonies in Pasadena with COMP, CPM

    WesternU COMP and COMP-Northwest celebrate Match Day

    KGI Post-Bac Students Tour WesternU to Explore CPM and COMP Programs

    WesternU COMP welcomes Webb Schools anatomy students to campus

    WesternU

    WesternU COMP professor receives Outstanding Contribution to Medicine award

    Let’s Connect!