Maria Wamsley, M.D.
NPI 1811927494 · Internal Medicine Physician · San Francisco, CA
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maria Wamsley, M.D. is a Internal Medicine Physician provider in San Francisco, CA (NPI 1811927494).
Provider details
- NPI number
- 1811927494
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- G76076 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
473 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. 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 does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 196 | $19 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 164 | $109 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 | 72 | $162 |
| Online Digital Evaluation and Management Service for an Established Patient for Up to 7 Days, Total Time 11-20 Minutes99422 | 16 | $28 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 13 | $74 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 49 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 224 | 63 |
| Amlodipine Besylate | 187 | 56 |
| Losartan Potassium | 113 | 35 |
| Metoprolol Succinate | 73 | 24 |
| Levothyroxine Sodium | 65 | 18 |
| Rosuvastatin Calcium | 63 | 18 |
| Hydrochlorothiazide |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-07-03
- Last updated
- 2008-07-23
Frequently asked questions
- What is Maria Wamsley's NPI number?
- Maria Wamsley's National Provider Identifier (NPI) is 1811927494, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maria Wamsley's specialty?
- Maria Wamsley is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Maria Wamsley located?
- Maria Wamsley's practice location on file with NPPES is 400 Parnassus Ave, San Francisco, CA 94143-2202.
- What is Maria Wamsley's phone number?
- The practice phone number listed in the NPPES registry for Maria Wamsley is (415) 353-4624.
- Does Maria Wamsley accept Medicare?
- Maria Wamsley is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maria Wamsley's NPI active?
- Yes — Maria Wamsley's NPI (1811927494) is active in the NPPES registry as of the last update on 2008-07-23.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.