Jack Huynh, MD
NPI 1548334543 · Internal Medicine Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Jack Huynh, MD is a Internal Medicine Physician provider in San Francisco, CA (NPI 1548334543).
Provider details
- NPI number
- 1548334543
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A41781 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
1,994 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 305 | $6 |
| Blood Test, Comprehensive Group of Blood Chemicals80053 | 266 | $10 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 257 | $13 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test85027 | 246 | $6 |
| Hemoglobin A1c Level83036 | 210 | $10 |
| Manual Urinalysis Test With Examination Using Microscope, Automated81001 | 205 | $3 |
| Urine Microalbumin (protein) Level |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 76 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Losartan Potassium | 985 | 279 |
| Atorvastatin Calcium | 958 | 272 |
| Amlodipine Besylate | 912 | 254 |
| Triamcinolone Acetonide | 366 | 121 |
| Metformin Hcl | 333 | 91 |
| Metoprolol Succinate | 310 | 87 |
| Pravastatin Sodium | 302 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-20
- Last updated
- 2007-07-08
Frequently asked questions
- What is Jack Huynh's NPI number?
- Jack Huynh's National Provider Identifier (NPI) is 1548334543, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Jack Huynh's specialty?
- Jack Huynh is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Jack Huynh located?
- Jack Huynh's practice location on file with NPPES is 1520 Stockton Street, San Francisco, CA 94133.
- What is Jack Huynh's phone number?
- The practice phone number listed in the NPPES registry for Jack Huynh is (415) 391-9686.
- Does Jack Huynh accept Medicare?
- Jack Huynh is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Jack Huynh's NPI active?
- Yes — Jack Huynh's NPI (1548334543) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.