Doctor profile · Federal record

Dr. Grace Ma, MD

Diagnostic Radiology Physician (CMS: Diagnostic Radiology) · Internal Medicine Physician · Boston, MA

  • NPI 1801388855
  • Accepts Medicare
  • 8 yrs in practice
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 3 locations .

NPPES Updated May 11, 2026
Primary practice
55 Fruit St
Boston, MA 021142621
(617) 643-2009
Additional location
420 S 5Th Ave
West Reading, PA 196112143
(484) 628-8640
fax (484) 628-9003
Additional location
75 Francis St
Boston, MA 021156110
(617) 732-5500
Mailing address
Po Box 13579
Reading, PA 196123579

Credentials & registration

NPPES · NUCC
NPI registered
June 2018 — 8 yrs on file
Profile last updated
December 13, 2024
Year of graduation
2018 — 8 yrs since
Specialty taxonomy
2085R0202X — NUCC code
State licenses (2)
Massachusetts #290853 · Pennsylvania #MT215275

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1801388855. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
926
Distinct HCPCS
8
Medicare allowed
$33,676
HCPCS Description Services Patients Avg allowed
77067 Screening mammography 269 269 $39
77063 Screening 3d breast mammography 267 267 $31
77063 Screening 3d breast mammography 105 105 $31
77067 Screening mammography 105 105 $39
G0279 Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) 61 61 $34
76642 Limited ultrasound scan of 1 breast 50 50 $42
77065 Diagnostic mammography of 1 breast 45 44 $55
77066 Diagnostic mammography of both breasts 24 24 $50

In context: peer comparison

Among 231 peers in this city , average services per provider: 259. This provider delivers 3.6× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Grace Ma's medical specialty?
Dr. Grace Ma practices Diagnostic Radiology Physician in Boston, MA.
Where does Dr. Grace Ma practice?
Dr. Grace Ma practices at 55 Fruit St, Boston, MA 021142621. Office phone: 6176432009.
What is Dr. Grace Ma's NPI?
Dr. Grace Ma's National Provider Identifier (NPI) is 1801388855, issued by NPPES.
Does Dr. Grace Ma accept Medicare assignment?
Yes. Dr. Grace Ma accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Grace Ma commonly perform?
Top Medicare-reported procedures in 2023: Screening mammography (HCPCS 77067); Screening 3d breast mammography (HCPCS 77063); Screening 3d breast mammography (HCPCS 77063). Source: CMS Medicare Physician & Other Practitioners file.