Claudia Ma, MD
NPI 1790245041 · Family Medicine Physician · Somerville, MA
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Claudia Ma, MD is a Family Medicine Physician provider in Somerville, MA (NPI 1790245041).
Provider details
- NPI number
- 1790245041
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
7 yrs in NPPES registry
- Profile completeness28% of score
83% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
245 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) |
|---|---|---|
| Insertion of Needle Into Vein for Collection of Blood Sample36415 | 46 | $9 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 32 | $110 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 25 | $86 |
| Blood Test, Lipids (cholesterol and Triglycerides)80061 | 20 | $13 |
| Complete Blood Cell Count (red Cells, White Blood Cell, Platelets), Automated Test and Automated Differential White Blood Cell Count85025 | 20 | $8 |
| Established Patient Office Or Other Outpatient Visit With High Level of Medical Decision Making, If Using Time, 40 Minutes Or More99215 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 11 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 38 | 11 |
| Atorvastatin Calcium | 37 | 15 |
| Omeprazole | 29 | — |
| Gabapentin | 23 | — |
| Levothyroxine Sodium | 22 | — |
| Metoprolol Succinate | 20 | — |
| Apixaban |
Practice location
Mailing address
Registry dates
- Enumerated
- 2019-03-22
- Last updated
- 2022-06-21
- Certified
- 2022-06-21
Frequently asked questions
- What is Claudia Ma's NPI number?
- Claudia Ma's National Provider Identifier (NPI) is 1790245041, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Claudia Ma's specialty?
- Claudia Ma is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Claudia Ma located?
- Claudia Ma's practice location on file with NPPES is 40 Holland St, Somerville, MA 02144-2705.
- What is Claudia Ma's phone number?
- The practice phone number listed in the NPPES registry for Claudia Ma is (617) 629-6000.
- Does Claudia Ma accept Medicare?
- Claudia Ma is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Claudia Ma's NPI active?
- Yes — Claudia Ma's NPI (1790245041) is active in the NPPES registry as of the last update on 2022-06-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.