Grace Ma, MD
NPI 1801388855 · Diagnostic Radiology Physician · Boston, MA
Enrolled with Medicare as Practitioner - Diagnostic Radiology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Grace Ma, MD is a Diagnostic Radiology Physician provider in Boston, MA (NPI 1801388855).
Provider details
- NPI number
- 1801388855
- Entity type
- Individual
- Primary specialty
- Diagnostic Radiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- MT215275 (PA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
8 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
3 documented practice locations
- Medicare service volume (vs. specialty peers)28% of score
3,296 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) |
|---|---|---|
| Screening 3d Breast Mammography77063 | 858 | $29 |
| Screening Mammography77067 | 858 | $37 |
| Screening 3d Breast Mammography77063 | 525 | $29 |
| Screening Mammography77067 | 525 | $36 |
| Diagnostic Digital Breast Tomosynthesis, Unilateral Or Bilateral (list Separately in Addition to 77065 Or 77066)G0279 | 168 | $30 |
| Limited Ultrasound Scan of 1 Breast76642 | 127 | $35 |
Practice location
Mailing address
Additional practice locations (2)
- 75 Francis StBoston, MA 02115-6110Phone: (617) 732-5500
- 420 S 5th AveWest Reading, PA 19611-2143Phone: (484) 628-8640Fax: (484) 628-9003
Registry dates
- Enumerated
- 2018-06-05
- Last updated
- 2024-12-13
- Certified
- 2024-12-13
Frequently asked questions
- What is Grace Ma's NPI number?
- Grace Ma's National Provider Identifier (NPI) is 1801388855, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Grace Ma's specialty?
- Grace Ma is listed in the NPPES registry with a primary specialty of Diagnostic Radiology Physician (Allopathic & Osteopathic Physicians).
- Where is Grace Ma located?
- Grace Ma's practice location on file with NPPES is 55 Fruit St, Boston, MA 02114-2621.
- What is Grace Ma's phone number?
- The practice phone number listed in the NPPES registry for Grace Ma is (617) 643-2009.
- Does Grace Ma accept Medicare?
- Grace Ma is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Grace Ma's NPI active?
- Yes — Grace Ma's NPI (1801388855) is active in the NPPES registry as of the last update on 2024-12-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.