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Michael Richard Portillo

Michael Richard Portillo, MD

Family Medicine

Video Visit
4.8 of 5 stars540 ratings, 77 reviews
Need help scheduling? Call 209-536-6925

Highlights

Age Groups Seen

  • Child 2-12
  • Adolescent 12-21
  • Adult 21-65
  • Older Adult >65

Languages

  • Spanish
  • English

Gender

Male

About Michael Richard Portillo

About The Provider

Michael Portillo, MD, earned his medical degree at Universidad Dr. José Matías Delgado in El Salvador, where in his final year of schooling he provided free medical clinics in rural villages, treating acute and chronic illnesses common to the region. After completing a year as a primary care physician at the Paisnal Health Clinic, also in El Salvador, he completed a clinical preceptorship at the Sky Lakes Medical Center in Klamath Falls, OR.

Dr. Portillo credits his father, a chiropractor, for his path into medicine. “The connections he had with his patients is what impressed me and made me want to pursue medicine.” That impression influences how Dr. Portillo practices medicine today. “I try to empower the patient to be more conscious of their health. That way they can help me better understand their needs.”

Originally from Burlingame, CA, Dr. Portillo moved to El Salvador, his father’s home country, when he was 14, but his roots in Tuolumne County run deep. His grandparent’s owned and operated the dry goods store in historic Columbia, where his mother would spend summers away from San Francisco working in the store.

Provider Type

Physician

Locations

  1. Pavilion Primary Care: Adventist Health Sonora
  2. Primary Care: Adventist Health Sonora

Expertise

Education

Universidad de El Salvador

Medical School

Mercy Medical Ctr Merced

Residency Program

Board Certifications

Family Medicine

American Board of Family Medicine, 2017

Insurance

Please contact the practice directly to confirm your health plan is accepted.
Search plans
  • Aetna
  • Anthem Blue Cross
  • Anthem MediCal
  • Blue Shield
  • CA Health & Wellness
  • CCS (AHSR)
  • Cigna
  • CMSP (County Medical Services Program) (AHSR)
  • Health Net Medi-CAL (AHSR only)
  • HealthNet
  • Medi-cal ORP1
  • Medicare AHSR Part B
  • Medicare Railroad
  • Stanislaus Foundation (AHSR)
  • Tricare
  • TriWest
  • UHC
  • Western Growers (AHCL) (AHSR)

Ratings & Reviews

4.8 out of 5

540 ratings, 77 reviews

The provider star rating is calculated using patient responses to the five care provider questions in our patient satisfaction survey. Below you can see the provider’s star rating and the number of his or her patients who have provided feedback.

Provider explained things clearly
Provider showed concern
Provider included you in decisions
Likelihood of recommending this provider
Provider discussed treatment options
Search reviews
    5 out of 5 stars
    Reviewed on 9/27/2025

    She listened to me carefully and was very attentive.

    5 out of 5 stars
    Reviewed on 9/26/2025

    After the wait- I was satisfied with the Doctor

    5 out of 5 stars
    Reviewed on 9/25/2025

    My compliments to my Dr. Michael Portillo.

    5 out of 5 stars
    Reviewed on 9/10/2025

    Listening to me always

    5 out of 5 stars
    Reviewed on 9/8/2025

    Dr Portillo is an excellent primary care doctor! He is very professional and knowledgeable on treatments. He is very caring and interested in his patients' progress.

    5 out of 5 stars
    Reviewed on 9/6/2025

    Dr. Portillo at Pavilion has always been good to me.

    5 out of 5 stars
    Reviewed on 9/1/2025

    Dr. Portillo Is knowledgeable, compassionate, and has a wonderful bedside manner. I felt very comfortable and well-informed during my visit.

    5 out of 5 stars
    Reviewed on 8/24/2025

    Excellent doctor. Takes time to listen carefully, explains clearly and makes sure all questions are answered. Has a pleasant, reassuring demeanor.

    5 out of 5 stars
    Reviewed on 8/23/2025

    Dr Portillo is very good at discussing any questions or concerns. He never makes you feel rushed.

    5 out of 5 stars
    Reviewed on 8/21/2025

    Doctor Portillo listens and care about what I say. Great doctor

    5 out of 5 stars
    Reviewed on 8/19/2025

    Absolutely the best

    1 out of 5 stars
    Reviewed on 8/18/2025

    Doctor has/had a very poor 'bedside manner'. 2nd time I walked out on the appointment for the same reason.

    5 out of 5 stars
    Reviewed on 8/15/2025

    Dr. Portillo listens and explains in layman's termsso thankful for his wisdom and abilities to fully understand my concerns about my health

    5 out of 5 stars
    Reviewed on 8/12/2025

    Very good about listening to all that's changed since I saw him last time. Takes the time to find a solution

    5 out of 5 stars
    Reviewed on 8/8/2025

    Attentive and cheerful team.

    5 out of 5 stars
    Reviewed on 8/7/2025

    I felt Dr Portillo was engaged and answered all my questions needs.

    5 out of 5 stars
    Reviewed on 8/7/2025

    I regard Dr. Portillo in the highest regard. He listens, he is empathetic, and just all around a wonderful doctor.

    5 out of 5 stars
    Reviewed on 8/1/2025

    Dr.Portillo always listens very carefully to my symptoms and understands what my concerns are.

    5 out of 5 stars
    Reviewed on 7/29/2025

    I would highly recommend Dr. Portillo.

    5 out of 5 stars
    Reviewed on 7/28/2025

    Dr Portillo is always very thorough and professional. He is an excellent primary care doctor!

    5 out of 5 stars
    Reviewed on 7/16/2025

    Dr. Portillo always takes the time to listen. He does not minimize my concerns and totally includes me in the discussion regarding my care.

    5 out of 5 stars
    Reviewed on 7/15/2025

    My provider is very attentive to me all the time listening to me

    5 out of 5 stars
    Reviewed on 7/15/2025

    Exemplary in every professional aspect.

    5 out of 5 stars
    Reviewed on 7/11/2025

    This is an exceptional doctor. I would recommend this practice to anyone I know!

    5 out of 5 stars
    Reviewed on 6/29/2025

    Dr. Portillo has always been a delight and made me feel outstandingly cared for.

    5 out of 5 stars
    Reviewed on 6/14/2025

    Continues to be the best primary care physician I have ever had

    5 out of 5 stars
    Reviewed on 6/10/2025

    Dr. Portillo is amazing

    5 out of 5 stars
    Reviewed on 5/30/2025

    My whole family has him for their doctor

    5 out of 5 stars
    Reviewed on 5/26/2025

    Dr. Portillo is great, great listener and very caring and thorough. Always answers my questions and his explanation of my care is easy to comprehend. I am completely satisfied with the care I receive from him.

    2 out of 5 stars
    Reviewed on 5/22/2025

    He had x-rays, (3) needed a MRI! Took to long to get it.

    5 out of 5 stars
    Reviewed on 5/13/2025

    Dr Portillo always listens to see what your needs are.

    1 out of 5 stars
    Reviewed on 5/12/2025

    If I have three things wrong with me, this doctor makes me wait for each separate appointment for each separate problem and will not help me and is very rude with no compassion and very unprofessional.

    5 out of 5 stars
    Reviewed on 5/1/2025

    The doctor is very good and helpful !!

    5 out of 5 stars
    Reviewed on 4/20/2025

    Dr Portillo is always attentive and willing to answer your questions

    5 out of 5 stars
    Reviewed on 4/18/2025

    Dr Portillo is very caring and professional. He always listens to you and responds to all of your questions.

    5 out of 5 stars
    Reviewed on 4/18/2025

    Dr Portillo is a great doctor as he actively listens and answers my questions in ways that I can understand.

    5 out of 5 stars
    Reviewed on 4/16/2025

    Very happy there

    5 out of 5 stars
    Reviewed on 4/16/2025

    Dr. Portillo always listens and answers my questions in a way that I can understand

    5 out of 5 stars
    Reviewed on 4/12/2025

    I would highly recommend this doctor to everyone. The skill and knowledge coupled with the compassion is unsurpassed.

    5 out of 5 stars
    Reviewed on 4/8/2025

    I am a fan of Dr. Portillo. He is easy to speak with about my concerns. He asks questions & listens to my responses

    5 out of 5 stars
    Reviewed on 3/29/2025

    Doc Portillo is always kind.

    5 out of 5 stars
    Reviewed on 3/28/2025

    Excellent job and very professional

    5 out of 5 stars
    Reviewed on 3/26/2025

    Great service.

    5 out of 5 stars
    Reviewed on 3/26/2025

    Doctor Portillo was attentive, kind and thorough as always.

    5 out of 5 stars
    Reviewed on 3/26/2025

    Dr Portillo listens and is very knowledgeable.He gives very good care.

    5 out of 5 stars
    Reviewed on 3/9/2025

    Dr Portillo treats me with kindness and caring every time I see him. He listens to my concerns and answers all my questions

    4 out of 5 stars
    Reviewed on 3/7/2025

    Good experience he goes straight to the point and explain everything very nicely

    4 out of 5 stars
    Reviewed on 3/4/2025

    Listened to what I said

    5 out of 5 stars
    Reviewed on 2/20/2025

    Dr Portillo listened carefully and demonstrated a sincere interest in helping resolve my health issues. I am happy to be his patient and am confident in the care he provides.

    5 out of 5 stars
    Reviewed on 2/7/2025

    Dr. Portillo always chases down my health problems. Sometimes it is with a referral, but often it is during the office visit.

    5 out of 5 stars
    Reviewed on 2/5/2025

    Everything is so professional.

    5 out of 5 stars
    Reviewed on 1/31/2025

    Since my appointment, I have struggled to get responses from a message I sent through the Patient Portal.

    5 out of 5 stars
    Reviewed on 1/21/2025

    Never rushed! Patience with my questions

    5 out of 5 stars
    Reviewed on 1/19/2025

    My Dr. Listens very well.

    5 out of 5 stars
    Reviewed on 1/10/2025

    I feel that the doctor listens to me and is concerned about my health.

    5 out of 5 stars
    Reviewed on 1/10/2025

    Very attentive and professional.

    5 out of 5 stars
    Reviewed on 1/9/2025

    I would highly recommend all of the individuals who helped me!

    5 out of 5 stars
    Reviewed on 1/8/2025

    Dr Portillo is an excellent primary care doctor. Very knowledgeable and caring.

    5 out of 5 stars
    Reviewed on 12/20/2024

    As always, Dr. Portillo is a superlative provider. He listens carefully to my symptoms & makes appropriate recommendations their resolution. He is also very flexible with the type of appointment that we have, as I needed to make this a telephone appointment.

    5 out of 5 stars
    Reviewed on 12/20/2024

    Dr Portillo explained in detail lab test my husband and I were concerned about. We felt much better after talking to him.

    5 out of 5 stars
    Reviewed on 12/20/2024

    Dr Portillo is an exceptional physician. Listens carefully, addresses all questions. Thorough explanations. Couldn't have a better doctor

    5 out of 5 stars
    Reviewed on 12/20/2024

    Ever so good across the board!!!

    5 out of 5 stars
    Reviewed on 12/19/2024

    I feel more at ease in Dr Portillo's presence than ever. He listens well and is more engaged than I sensed when I first started seeing him. I will definitely recommend him when the opportunity presents.

    5 out of 5 stars
    Reviewed on 12/18/2024

    Doctor Portillo is a very good doctor informative on my care as a senior citizen

    5 out of 5 stars
    Reviewed on 12/12/2024

    Dr. Portillo continues to be the best primary care team I have ever had!

    5 out of 5 stars
    Reviewed on 12/6/2024

    Great experience very caring office

    5 out of 5 stars
    Reviewed on 12/3/2024

    Excellent service. It has helped me improve my physical and emotional stability. All the time I feel that he cares about my well-being.

    5 out of 5 stars
    Reviewed on 11/24/2024

    Very satisfied and please with the care I receive from Dr. Portillo.

    5 out of 5 stars
    Reviewed on 11/23/2024

    Doctor was excellent.

    5 out of 5 stars
    Reviewed on 11/22/2024

    Dr Portillo is great! He listens and answers questions in a way that I understand. He actively listens!

    5 out of 5 stars
    Reviewed on 11/21/2024

    Dr Portillo is ver professional and listens to you.

    5 out of 5 stars
    Reviewed on 11/13/2024

    I love Dr. Portillo. I would recommend him to anybody.

    5 out of 5 stars
    Reviewed on 10/29/2024

    Doctor Portillo was very professional and courteous. He took time to answer all of my questions, and adress all of my concerns. I felt very comfortable, and confident in his ability to perform my surgery.

    5 out of 5 stars
    Reviewed on 10/29/2024

    Dr portillo is very professional and actually listened to me

    5 out of 5 stars
    Reviewed on 10/21/2024

    Dr. Portillo was amazing! He explained everything and was so kind and sensitive. I am blessed to have him as my primary care physician.

    5 out of 5 stars
    Reviewed on 10/21/2024

    Love Dr. Portillo, I always receive excellent care.

    5 out of 5 stars
    Reviewed on 10/9/2024

    Dr Portillo was so kind and caring about a personal issue I was having. I appreciated him listening and sharing his insights