Doctor profile · Federal record

Dr. GREGORY ADAMSON, M.D.

Sports Medicine (Orthopaedic Surgery) Physician (CMS: SPORTS MEDICINE) · Orthopaedic Surgery Physician · PASADENA, CA

  • NPI 1972590610
  • Accepts Medicare
  • MIPS 76.6 / 100 · 2023
  • 45 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
800 S RAYMOND AVE
PASADENA, CA 911053229
(626) 795-8051
fax (626) 795-0356
Mailing address
PO BOX 90730
PASADENA, CA 911090730

Credentials & registration

NPPES · NUCC
NPI registered
September 2005 — 21 yrs on file
Profile last updated
March 4, 2024
Year of graduation
1981 — 45 yrs since
Specialty taxonomy
207XX0005X — NUCC code
State license (1)
California #G58923

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1972590610. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,150
Distinct HCPCS
10
Medicare allowed
$101,884
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 408 245 $138
73560 X-ray of knee, 1-2 views 137 108 $39
J3301 Injection, triamcinolone acetonide, not otherwise specified, 10 mg 131 41 $1
73565 X-ray of both knees while standing 129 125 $46
73030 X-ray of shoulder, minimum of 2 views 112 91 $40
20610 Aspiration and/or injection of fluid from large joint 92 48 $86
99204 New patient office or other outpatient visit, 45-59 minutes 64 64 $180
73721 Mri scan of leg joint without contrast 28 28 $174
73221 Mri scan of arm joint without contrast 18 18 $174
99213 Established patient office or other outpatient visit, 20-29 minutes 18 16 $98

In context: peer comparison

Among 3 peers in this city , average services per provider: 116. This provider delivers 9.9× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
22
Patients
20
Total drug cost
$157
Drug Type Claims Patients Total cost
Hydrocodone-Acetaminophen (Hydrocodone/Acetaminophen) Brand 22 20 $157

Hospital affiliations

CMS Hospital Compare