Marsha Alexander, M.D.
NPI 1275692055 · Family Medicine Physician · Vacaville, CA
Enrolled with Medicare as Order and Referring Only - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Marsha Alexander, M.D. is a Family Medicine Physician provider in Vacaville, CA (NPI 1275692055).
Provider details
- NPI number
- 1275692055
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- G73005 (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 · 138 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 557 | 75 |
| Amlodipine Besylate | 298 | 43 |
| Levothyroxine Sodium | 260 | 32 |
| Losartan Potassium | 244 | 32 |
| Gabapentin | 205 | 37 |
| Metoprolol Succinate | 204 | 31 |
| Tamsulosin Hcl |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-12-07
- Last updated
- 2012-02-01
Frequently asked questions
- What is Marsha Alexander's NPI number?
- Marsha Alexander's National Provider Identifier (NPI) is 1275692055, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Marsha Alexander's specialty?
- Marsha Alexander is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Marsha Alexander located?
- Marsha Alexander's practice location on file with NPPES is 600 Nut Tree Rd, Vacaville, CA 95687-4669.
- What is Marsha Alexander's phone number?
- The practice phone number listed in the NPPES registry for Marsha Alexander is (707) 359-1800.
- Does Marsha Alexander accept Medicare?
- Marsha Alexander is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Marsha Alexander's NPI active?
- Yes — Marsha Alexander's NPI (1275692055) is active in the NPPES registry as of the last update on 2012-02-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.