Doctor profile · Federal record

Dr. Robert Stephenson, D.O.

Anesthesiology Physician (CMS: Anesthesiology) · Boston, MA

  • NPI 1538332135
  • 20 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
736 Cambridge Street, Cmp-2
Boston, MA 021352907
(617) 789-9000
fax (617) 254-6384
Mailing address
736 Cambridge St, Cmp-2
Boston, MA 021352907

Credentials & registration

NPPES · NUCC
NPI registered
April 2008 — 18 yrs on file
Profile last updated
December 19, 2011
Year of graduation
2006 — 20 yrs since
Specialty taxonomy
207L00000X — NUCC code
State license (1)
Massachusetts #226381

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1538332135. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
117
Distinct HCPCS
4
Medicare allowed
$12,006
HCPCS Description Services Patients Avg allowed
00811 Anesthesia for other procedure on large bowel using an endoscope 56 56 $109
00812 Anesthesia for exam of colon using an endoscope 28 28 $75
00731 Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 17 17 $97
01810 Anesthesia for procedure on nerves, muscles, tendons, and tissue of forearm, wrist, and hand 16 16 $135

In context: peer comparison

Among 267 peers in this city , average services per provider: 32. This provider delivers 3.7× the peer median.

Frequently asked questions

Auto-generated from federal data
What is Dr. Robert Stephenson's medical specialty?
Dr. Robert Stephenson practices Anesthesiology Physician in Boston, MA.
Where does Dr. Robert Stephenson practice?
Dr. Robert Stephenson practices at 736 Cambridge Street, Boston, MA 021352907. Office phone: 6177899000.
What is Dr. Robert Stephenson's NPI?
Dr. Robert Stephenson's National Provider Identifier (NPI) is 1538332135, issued by NPPES.
Does Dr. Robert Stephenson accept Medicare assignment?
Dr. Robert Stephenson does not accept Medicare assignment for all services. Patients may be billed amounts beyond Medicare-allowed charges.
What procedures does Dr. Robert Stephenson commonly perform?
Top Medicare-reported procedures in 2023: Anesthesia for other procedure on large bowel using an endoscope (HCPCS 00811); Anesthesia for exam of colon using an endoscope (HCPCS 00812); Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope (HCPCS 00731). Source: CMS Medicare Physician & Other Practitioners file.