Doctor profile · Federal record

Dr. Maryellen Sun, M.D.

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

  • NPI 1861661092
  • Accepts Medicare
  • 24 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
Beth Israel Deaconess Medical Center, 330 Brookline Avenue
Boston, MA 02215
(617) 754-2521
Mailing address
83 Lee St
Brookline, MA 024455912

Credentials & registration

NPPES · NUCC
NPI registered
February 2008 — 18 yrs on file
Profile last updated
August 2, 2011
Year of graduation
2002 — 24 yrs since
Specialty taxonomy
2085R0202X — NUCC code
State license (1)
Massachusetts #234487

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1861661092. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
333
Distinct HCPCS
9
Medicare allowed
$20,668
HCPCS Description Services Patients Avg allowed
71250 Ct scan of chest without contrast 99 97 $52
70450 Ct scan head or brain without contrast 57 57 $40
74177 Ct scan of abdomen and pelvis with contrast 44 44 $88
74178 Ct scan of abdomen and pelvis before and after contrast 25 25 $97
71271 Low dose ct scan of chest for lung cancer screening 24 24 $52
72125 Ct scan of upper spine without contrast 23 23 $48
71260 Ct scan of chest with contrast 22 22 $55
74176 Ct scan of abdomen and pelvis without contrast 21 21 $85
71275 Ct scan of blood vessels of chest with contrast 18 18 $88

In context: peer comparison

Among 231 peers in Boston Diagnostic Radiology Physician, average services per provider: 259. This provider delivers 1.3× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Maryellen Sun's medical specialty?
Dr. Maryellen Sun practices Diagnostic Radiology Physician in Boston, MA.
Where does Dr. Maryellen Sun practice?
Dr. Maryellen Sun practices at Beth Israel Deaconess Medical Center, Boston, MA 02215. Office phone: 6177542521.
What is Dr. Maryellen Sun's NPI?
Dr. Maryellen Sun's National Provider Identifier (NPI) is 1861661092, issued by NPPES.
Does Dr. Maryellen Sun accept Medicare assignment?
Yes. Dr. Maryellen Sun accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Maryellen Sun commonly perform?
Top Medicare-reported procedures in 2023: Ct scan of chest without contrast (HCPCS 71250); Ct scan head or brain without contrast (HCPCS 70450); Ct scan of abdomen and pelvis with contrast (HCPCS 74177). Source: CMS Medicare Physician & Other Practitioners file.