Doctor profile · Federal record

Dr. Michael O'Sullivan, MD

Orthopaedic Surgery Physician (CMS: Orthopedic Surgery) · Springfield, MA

  • NPI 1376981266
  • Accepts Medicare
  • 13 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
300 Birnie Ave Ste 201
Springfield, MA 011071121
(413) 785-4666

Credentials & registration

NPPES · NUCC
NPI registered
June 2013 — 13 yrs on file
Profile last updated
March 12, 2024
Year of graduation
2013 — 13 yrs since
Specialty taxonomy
207X00000X — NUCC code
State license (1)
Massachusetts #283812

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1376981266. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
2,589
Distinct HCPCS
10
Medicare allowed
$338,365
HCPCS Description Services Patients Avg allowed
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg 664 113 $1
73564 X-ray of knee, 4 or more views 371 363 $54
73502 X-ray of hip, 2-3 views 368 271 $44
99214 Established patient office or other outpatient visit, 30-39 minutes 240 213 $130
73562 X-ray of knee, 3 views 190 162 $39
20610 Aspiration and/or injection of fluid from large joint 164 124 $75
99213 Established patient office or other outpatient visit, 20-29 minutes 129 111 $91
27447 Replacement of knee joint, both sides of knee 93 91 $1,287
73030 X-ray of shoulder, minimum of 2 views 71 70 $33
27130 Replacement of thigh bone and hip joint with prosthesis 68 67 $1,263

In context: peer comparison

Among 12 peers in this city , average services per provider: 105. This provider delivers 25× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
488
Patients
324
Total drug cost
$2,587
Drug Type Claims Patients Total cost
Meloxicam Generic 240 112 $1,254
Amoxicillin Generic 113 103 $376
Tramadol Hcl Generic 62 49 $431
Clindamycin Hcl Generic 25 22 $98
Hydromorphone Hcl Generic 18 15 $111
Celecoxib Generic 15 12 $178
Oxycodone Hcl Generic 15 11 $140

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Michael O'Sullivan's medical specialty?
Dr. Michael O'Sullivan practices Orthopaedic Surgery Physician in Springfield, MA.
Where does Dr. Michael O'Sullivan practice?
Dr. Michael O'Sullivan practices at 300 Birnie Ave Ste 201, Springfield, MA 011071121. Office phone: 4137854666.
What is Dr. Michael O'Sullivan's NPI?
Dr. Michael O'Sullivan's National Provider Identifier (NPI) is 1376981266, issued by NPPES.
Does Dr. Michael O'Sullivan accept Medicare assignment?
Yes. Dr. Michael O'Sullivan accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Michael O'Sullivan commonly perform?
Top Medicare-reported procedures in 2023: Injection, triamcinolone acetonide, not otherwise specified, 10 mg (HCPCS J3301); X-ray of knee, 4 or more views (HCPCS 73564); X-ray of hip, 2-3 views (HCPCS 73502). Source: CMS Medicare Physician & Other Practitioners file.