Dr. John David Fernandez

About Dr. John David Fernandez

Dr. John David Fernandez is a board-certified Internal Medicine physician practicing in West Hollywood, California, with his office located at 8550 Santa Monica Blvd, Suite 300, Studio 305, West Hollywood, CA 90069. He earned his Doctor of Medicine from the University of Kentucky College of Medicine (Class of 2017) and completed a rigorous residency in Internal Medicine at the Icahn School of Medicine at Mount Sinai / Mount Sinai Hospital in New York City in 2020 — one of the most competitive and highly regarded internal medicine residency programs in the United States.

Dr. Fernandez has developed a distinctive and impactful clinical niche: he is a recognized specialist in gender-affirming hormone therapy (GAHT) management for transgender and gender diverse individuals. His work in this area is not only clinical but also academic — he is a published researcher with 11 PubMed-indexed citations, including a widely referenced 2019 paper on the assessment of gender-affirming hormone therapy requirements in LGBT Health, and a 2016 study on the metabolic effects of hormone therapy in transgender patients published in Endocrine Practice. These publications place Dr. Fernandez among a small group of internists whose clinical practice is supported by their own original research in this field.

Dr. Fernandez holds an active California State Medical License (2020–2026) and is board certified by the American Board of Internal Medicine (ABIM). His practice in West Hollywood — a community with one of the most significant LGBTQ+ populations in the United States — allows him to serve patients who benefit most from a provider who combines clinical excellence in internal medicine with deep, research-grounded expertise in gender-affirming care. He can be reached at (323) 212-5404.

Education & Training

Medical Degree

• Doctor of Medicine (MD) — University of Kentucky College of Medicine, Class of 2017

Residency

• Internal Medicine — Icahn School of Medicine at Mount Sinai / Mount Sinai Hospital, New York, NY — Completed 2020

Board Certification

• American Board of Internal Medicine (ABIM) — Internal Medicine

Licensure

• California State Medical License — Active (2020–2026)

Research & Publications

• 11 PubMed-indexed citations in gender-affirming hormone therapy and transgender health
• Published in LGBT Health (2019) and Endocrine Practice (2016)

Practice Location

• 8550 Santa Monica Blvd, Suite 300, Studio 305, West Hollywood, CA 90069
• Phone: (323) 212-5404 |  Fax: (323) 800-8377

Areas of Expertise / Conditions Treated

Dr. Fernandez provides comprehensive internal medicine care with a specialized focus on transgender and gender diverse health:

• Gender-Affirming Hormone Therapy (GAHT) — Initiation, Monitoring & Management
• Feminizing Hormone Therapy (Estrogen, Anti-Androgens)
• Masculinizing Hormone Therapy (Testosterone)
• Metabolic Monitoring in Transgender Patients
• General Internal Medicine — Preventive Care & Annual Physicals
• Hypertension, Diabetes & Cardiovascular Risk Management
• Cholesterol & Lipid Management
• Chronic Disease Management — Adults
• Lab Work Interpretation & Health Screening
• Coordination of Multidisciplinary Gender-Affirming Care
• LGBTQ+ Affirming Primary Care

Why Patients Choose Dr. John David Fernandez

1. Leading Research Expert in Gender-Affirming Hormone Therapy — Dr. Fernandez is not just a clinician who provides GAHT — he is one of the field’s published researchers. His 11 PubMed citations include foundational work on hormone therapy requirements and metabolic effects in transgender patients, giving his patients access to care informed by his own original scientific inquiry.
2. Mount Sinai Internal Medicine Residency — Training at the Icahn School of Medicine at Mount Sinai — a globally recognized academic medical center — ensures that Dr. Fernandez’s foundational internal medicine skills meet the highest standards of clinical rigor and evidence-based practice.
3. ABIM Board-Certified Internist — His board certification from the American Board of Internal Medicine confirms that Dr. Fernandez meets the rigorous knowledge and competency standards of the most respected certifying body for internal medicine specialists in the country.
4. Located in the Heart of West Hollywood — His Santa Monica Blvd practice places him at the geographic and cultural center of one of the most significant LGBTQ+ communities in the United States, making him geographically and culturally accessible to patients who may have struggled to find affirming, knowledgeable primary care.
5. Integrated LGBTQ+ Primary Care — Dr. Fernandez provides both the specialized gender-affirming hormone management and the comprehensive primary care that transgender and gender diverse patients need — reducing the fragmentation that often characterizes healthcare for this population and enabling truly continuous, whole-person care.

Patient Rating Snapshot

Frequently Asked Questions

1. What is gender-affirming hormone therapy (GAHT)?

Gender-affirming hormone therapy involves the use of hormones to help align a person’s physical characteristics with their gender identity. For transgender women, this typically involves estrogen and anti-androgen therapy; for transgender men, testosterone therapy is used. Dr. Fernandez specializes in initiating, monitoring, and managing GAHT, and is one of a small group of internists with peer-reviewed research publications in this field.

2. Do I need to see a therapist before starting hormone therapy with Dr. Fernandez?

Requirements for GAHT have evolved. Informed consent models — which Dr. Fernandez applies — typically allow patients to begin hormone therapy after a thorough medical evaluation and informed consent process, without requiring a prior letter from a mental health provider. Patients are encouraged to contact the office to discuss their specific situation and what the process entails.

3. Does Dr. Fernandez provide general primary care as well?

Yes. Dr. Fernandez is a board-certified internist who provides comprehensive primary care including preventive screenings, chronic disease management (hypertension, diabetes, cholesterol), annual physicals, and lab interpretation — in addition to his specialized GAHT services. He offers integrated care for LGBTQ+ patients seeking both affirming hormone management and excellent general health oversight.

4. Where is Dr. Fernandez’s practice located?

Dr. Fernandez practices at 8550 Santa Monica Blvd, Suite 300, Studio 305, West Hollywood, CA 90069. The practice is centrally located in West Hollywood and can be reached by phone at (323) 212-5404 or fax at (323) 800-8377.

5. Has Dr. Fernandez published research on transgender health?

Yes. Dr. Fernandez has 11 PubMed-indexed research citations, including publications in LGBT Health (2019) on gender-affirming hormone therapy requirements and in Endocrine Practice (2016) on metabolic effects of hormone therapy in transgender patients. This research background directly informs his clinical practice and ensures that his patients receive care aligned with the best available scientific evidence.