Doctor profile · Federal record

Dr. William Mehan, M.D.

Diagnostic Radiology Physician (CMS: Diagnostic Radiology) · Student in an Organized Health Care Education/Training Program · Boston, MA

  • NPI 1942421276
  • Accepts Medicare
  • 20 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
800 Washington Street
Boston, MA 02111
(617) 636-5000
Mailing address
800 Washington St. Box 1013
Boston, MA 02111

Credentials & registration

NPPES · NUCC
NPI registered
May 2007 — 19 yrs on file
Profile last updated
July 16, 2013
Year of graduation
2006 — 20 yrs since
Specialty taxonomy
2085R0202X — NUCC code
State license (1)
Massachusetts #245931

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1942421276. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
41,977
Distinct HCPCS
10
Medicare allowed
$261,797
HCPCS Description Services Patients Avg allowed
A9575 Injection, gadoterate meglumine, 0.1 ml 36,640 230 $0
Q9967 Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml 3,517 43 $0
70450 Ct scan head or brain without contrast 351 338 $42
70553 Mri scan of brain before and after contrast 197 187 $341
72148 Mri scan of lower spinal canal without contrast 138 136 $210
70496 Ct scan of blood vessels of head with contrast 116 115 $88
70498 Ct scan of blood vessels of neck with contrast 109 109 $84
70553 Mri scan of brain before and after contrast 109 108 $116
70551 Mri scan of brain without contrast 103 103 $75
72148 Mri scan of lower spinal canal without contrast 92 91 $75

In context: peer comparison

Among 231 peers in this city , average services per provider: 259. This provider delivers 162× the peer median.

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. William Mehan's medical specialty?
Dr. William Mehan practices Diagnostic Radiology Physician in Boston, MA.
Where does Dr. William Mehan practice?
Dr. William Mehan practices at 800 Washington Street, Boston, MA 02111. Office phone: 6176365000.
What is Dr. William Mehan's NPI?
Dr. William Mehan's National Provider Identifier (NPI) is 1942421276, issued by NPPES.
Does Dr. William Mehan accept Medicare assignment?
Yes. Dr. William Mehan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. William Mehan commonly perform?
Top Medicare-reported procedures in 2023: Injection, gadoterate meglumine, 0.1 ml (HCPCS A9575); Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml (HCPCS Q9967); Ct scan head or brain without contrast (HCPCS 70450). Source: CMS Medicare Physician & Other Practitioners file.