Carolyn Mar, MD
NPI 1649358250 · Internal Medicine Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Carolyn Mar, MD is a Internal Medicine Physician provider in San Francisco, CA (NPI 1649358250).
Provider details
- NPI number
- 1649358250
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- A64358 (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 · 104 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 646 | 224 |
| Levothyroxine Sodium | 423 | 133 |
| Losartan Potassium | 307 | 105 |
| Amlodipine Besylate | 282 | 99 |
| Lisinopril | 244 | 88 |
| Alendronate Sodium | 240 | 90 |
| Hydrochlorothiazide | 222 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-11-01
- Last updated
- 2021-12-06
Frequently asked questions
- What is Carolyn Mar's NPI number?
- Carolyn Mar's National Provider Identifier (NPI) is 1649358250, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Carolyn Mar's specialty?
- Carolyn Mar is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Carolyn Mar located?
- Carolyn Mar's practice location on file with NPPES is 2200 Ofarrell St, San Francisco, CA 94115-3357.
- What is Carolyn Mar's phone number?
- The practice phone number listed in the NPPES registry for Carolyn Mar is (415) 833-2000.
- Does Carolyn Mar accept Medicare?
- Carolyn Mar is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Carolyn Mar's NPI active?
- Yes — Carolyn Mar's NPI (1649358250) 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.