Gabriela Sullivan, MD
NPI 1275620023 · Internal Medicine Physician · Martinez, CA
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gabriela Sullivan, MD is a Internal Medicine Physician provider in Martinez, CA (NPI 1275620023).
Provider details
- NPI number
- 1275620023
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A77056 (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
19 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 · 23 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 36 | 12 |
| Metoprolol Succinate | 30 | — |
| Losartan Potassium | 25 | — |
| Methimazole | 25 | — |
| Metformin Hcl | 24 | — |
| Zolpidem Tartrate | 23 | — |
| Atorvastatin Calcium | 21 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-10-05
- Last updated
- 2007-07-08
Frequently asked questions
- What is Gabriela Sullivan's NPI number?
- Gabriela Sullivan's National Provider Identifier (NPI) is 1275620023, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gabriela Sullivan's specialty?
- Gabriela Sullivan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Gabriela Sullivan located?
- Gabriela Sullivan's practice location on file with NPPES is 2500 Alhambra Avenue, Martinez, CA 94553-3156.
- What is Gabriela Sullivan's phone number?
- The practice phone number listed in the NPPES registry for Gabriela Sullivan is (925) 370-5110.
- Does Gabriela Sullivan accept Medicare?
- Gabriela Sullivan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gabriela Sullivan's NPI active?
- Yes — Gabriela Sullivan's NPI (1275620023) 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.