Mark Wexman, M.D.
NPI 1063402816 · Cardiovascular Disease Physician · Larkspur, CA
Enrolled with Medicare as Practitioner - Cardiovascular Disease (cardiology) · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Mark Wexman, M.D. is a Cardiovascular Disease Physician provider in Larkspur, CA (NPI 1063402816).
Provider details
- NPI number
- 1063402816
- Entity type
- Individual
- Primary specialty
- Cardiovascular Disease PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- G46721 (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
20 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 · 6 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 22 | 20 |
| Amlodipine Besylate | 16 | 14 |
| Atorvastatin Calcium | 16 | 13 |
| Losartan Potassium | 13 | 12 |
| Valsartan | 12 | 11 |
| Apixabanbrand: Eliquis | 11 | — |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they include 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
- 2005-10-24
- Last updated
- 2021-07-20
- Certified
- 2021-07-20
Frequently asked questions
- What is Mark Wexman's NPI number?
- Mark Wexman's National Provider Identifier (NPI) is 1063402816, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Mark Wexman's specialty?
- Mark Wexman is listed in the NPPES registry with a primary specialty of Cardiovascular Disease Physician (Allopathic & Osteopathic Physicians).
- Where is Mark Wexman located?
- Mark Wexman's practice location on file with NPPES is 2 Bon Air Rd, Larkspur, CA 94939-1141.
- What is Mark Wexman's phone number?
- The practice phone number listed in the NPPES registry for Mark Wexman is (415) 927-0666.
- Does Mark Wexman accept Medicare?
- Mark Wexman is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Mark Wexman's NPI active?
- Yes — Mark Wexman's NPI (1063402816) is active in the NPPES registry as of the last update on 2021-07-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.