Gilmer Youn, M.D.
NPI 1336477926 · Infectious Disease Physician · Los Angeles, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gilmer Youn, M.D. is a Infectious Disease Physician provider in Los Angeles, CA (NPI 1336477926).
Provider details
- NPI number
- 1336477926
- Entity type
- Individual
- Primary specialty
- Infectious Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- A110078 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
16 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 7 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Bictegrav/Emtricit/Tenofov Alabrand: Biktarvy | 48 | 15 |
| Fluconazole | 25 | — |
| Abacavir/Dolutegravir/Lamivudibrand: Triumeq | 21 | — |
| Valganciclovir Hcl | 15 | — |
| Ciprofloxacin Hcl | 14 | — |
| Fosfomycin Tromethamine | 13 | — |
| Darunavir/Cobicistatbrand: Prezcobix | 13 | — |
These counts cover prescriptions paid through Medicare Part D in 2024 — they include cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means , never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-11-19
- Last updated
- 2023-09-26
- Certified
- 2023-01-19
Frequently asked questions
- What is Gilmer Youn's NPI number?
- Gilmer Youn's National Provider Identifier (NPI) is 1336477926, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gilmer Youn's specialty?
- Gilmer Youn is listed in the NPPES registry with a primary specialty of Infectious Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Gilmer Youn located?
- Gilmer Youn's practice location on file with NPPES is 5427 Whittier Blvd, Los Angeles, CA 90022-4101.
- What is Gilmer Youn's phone number?
- The practice phone number listed in the NPPES registry for Gilmer Youn is (323) 869-5448.
- Does Gilmer Youn accept Medicare?
- Gilmer Youn is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gilmer Youn's NPI active?
- Yes — Gilmer Youn's NPI (1336477926) is active in the NPPES registry as of the last update on 2023-09-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.