About

Dr. Castillo is passionate about LGBTQ medicine, and strives to be an outspoken, visible leader within his community. He has special interest in gender-affirming hormone therapy, as well as prevention of sexually transmitted infections (STIs). His practice includes specific time every week reserved for providing care to transgender patients. This is an opportunity for transgender patients to seek hormone replacement therapy (HRT) and preventive medicine in a caring and accepting environment.

Dr. Castillo is the Director of Community Outreach and Diversity at our residency program and therefore it is important that the physicians he trains are mindful of social determinants of health, including socioeconomic status, education level, and health literacy. Being mindful of these variables ensures that all of our patients receive the quality health care that they deserve.

In his free time, Dr. Castillo loves singing and making music, cooking, trying new restaurants, trivia and crossword puzzles, and following his favorite bay area sports teams. He is also fluent in English and Tagalog and speaks intermediate Spanish.

Languages

English

Provider Specialty

Family Medicine, Primary Care

Areas of Care

Education

Medical School

Touro University College of Osteopathic Medicine

2017

Internship/Residency - Family Medicine

Long Beach Medical Center

2020

Locations & Affiliations

Locations

MemorialCare Family Medicine Residency - Long Beach

450 East Spring Street

Suite 1

Long Beach, CA

Office: 562-933-0050

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Affiliations

Insurance

Please consult your health care provider or health plan for the most accurate information about your health plan’s coverage of a particular health care service offered at a MemorialCare facility. Learn more about our Accepted Health Plans.

Patient Reviews

5.0 out of 5
(201 Ratings)
Dec 5, 2025
Casto N.
Great listener and makes me feel very comfortable.
Dec 3, 2025
Joe R.
Oct 31, 2025
Gloria S.
Very professional
Oct 31, 2025
Motu K.
Every visit has been great with Dr. C, been under his care for a couple of years. Very professional and informative about my health needs.
Jun 9, 2025
Hannah P.
everything
May 9, 2025
Lucero A.
Dr Castillo is always attentive and supportive. He asks the right questions to make one feel heard and cared for. His demeanor is always warm and open, which helps patients feel comfortable and at ease. He also answers patient questions thoroughly, patiently, and compassionately, which is in general the bedside manner Dr Castillo displays.
May 7, 2025
Jerry F.
He patiently listens to what I have to say about my health concerns and issues. He's a proactive MD.
May 5, 2025
Jane C.
Staunch defender of community and excellent physician. warm, funny, and deeply informed
Apr 25, 2025
Michael B.
many others who simply type on a computer while you’re speaking. He listens. Responds, and is proactive. Addressing all of my concerns no matter how small. He is also very personable with a great bedside manner. What more can I say . The best
Apr 24, 2025
Ulysess P.
Dr Castillo is easy to talk to and listens to my concerns.
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Source: Reviews are aggregated from third-party review sites such as Facebook, Google, HealthGrades, RepuGen, Vitals, WebMD, and Yelp.