Gary Ross, MD
NPI 1598965659 · General Practice Physician · San Francisco, CA
Gary Ross, MD is a General Practice Physician provider in San Francisco, CA (NPI 1598965659).
Provider details
- NPI number
- 1598965659
- Entity type
- Individual
- Primary specialty
- General Practice PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- G29892 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
18 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) |
|---|---|
| Thyroid,porkbrand: Armour Thyroid | 26 |
| Levothyroxine Sodium | 20 |
| Zolpidem Tartrate | 16 |
| Albuterol Sulfatebrand: Ventolin Hfa | 14 |
| Apixabanbrand: Eliquis | 13 |
| Levothyroxine Sodiumbrand: Synthroid | 13 |
| Liothyronine Sodium | 12 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude 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
- 2007-07-18
- Last updated
- 2007-07-18
Frequently asked questions
- What is Gary Ross's NPI number?
- Gary Ross's National Provider Identifier (NPI) is 1598965659, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gary Ross's specialty?
- Gary Ross is listed in the NPPES registry with a primary specialty of General Practice Physician (Allopathic & Osteopathic Physicians).
- Where is Gary Ross located?
- Gary Ross's practice location on file with NPPES is 500 Sutter Street, San Francisco, CA 94102.
- What is Gary Ross's phone number?
- The practice phone number listed in the NPPES registry for Gary Ross is (415) 398-0555.
- Is Gary Ross's NPI active?
- Yes — Gary Ross's NPI (1598965659) is active in the NPPES registry as of the last update on 2007-07-18.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.