Robert Sosa, MD
NPI 1902984008 · Internal Medicine Physician · Walnut Creek, CA
Robert Sosa, MD is a Internal Medicine Physician provider in Walnut Creek, CA (NPI 1902984008).
Provider details
- NPI number
- 1902984008
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- A64493 (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 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 42 | 35 |
| Amlodipine Besylate | 34 | 20 |
| Famotidine | 31 | 18 |
| Levothyroxine Sodium | 28 | 15 |
| Fluticasone Propionate | 22 | 14 |
| Lisinopril | 22 | 19 |
| Tamsulosin Hcl | 21 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-02
- Last updated
- 2021-12-06
Frequently asked questions
- What is Robert Sosa's NPI number?
- Robert Sosa's National Provider Identifier (NPI) is 1902984008, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Sosa's specialty?
- Robert Sosa is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Sosa located?
- Robert Sosa's practice location on file with NPPES is 1425 S Main St, Walnut Creek, CA 94596-5318.
- What is Robert Sosa's phone number?
- The practice phone number listed in the NPPES registry for Robert Sosa is (925) 295-4000.
- Is Robert Sosa's NPI active?
- Yes — Robert Sosa's NPI (1902984008) is active in the NPPES registry as of the last update on 2021-12-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.