Doctor profile · Federal record

Dr. Adam Parker, M.D.

Rheumatology Physician (CMS: Rheumatology) · Student in an Organized Health Care Education/Training Program · Bridgeton, MO

  • NPI 1023306040
  • Accepts Medicare
  • 15 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
12255 Depaul Drive Suite 500
Bridgeton, MO 63044
(314) 209-5180
Additional location
1402 S Grand Blvd
Saint Louis, MO 631041004
(314) 577-8760
Mailing address
Po Box 955534
Saint Louis, MO 631952551

Credentials & registration

NPPES · NUCC
NPI registered
July 2011 — 15 yrs on file
Profile last updated
October 26, 2020
Year of graduation
2011 — 15 yrs since
Specialty taxonomy
207RR0500X — NUCC code
State licenses (2)
Missouri #2016015321 · Missouri #2011018542

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1023306040. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
702
Distinct HCPCS
2
Medicare allowed
$68,082
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 640 312 $94
99204 New patient office or other outpatient visit, 45-59 minutes 62 62 $127

In context: peer comparison

Among 2 peers in Bridgeton Rheumatology Physician, average services per provider: 318. This provider delivers 2.2× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$88
Transactions
5
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
Amgen INC. 3 $58.67
E.R. Squibb & Sons, L.L.C. 2 $29.60

By nature of payment

Food and Beverage
$59
Education
$30

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
3,535
Patients
1,048
Total drug cost
$123,139
Drug Type Claims Patients Total cost
Hydroxychloroquine Sulfate Generic 797 215 $50,435
Prednisone Generic 476 177 $3,229
Methotrexate (Methotrexate Sodium) Brand 440 122 $16,123
Allopurinol Generic 383 105 $6,021
Gabapentin Generic 281 89 $5,591
Folic Acid Generic 161 50 $935
Celecoxib Generic 159 43 $5,197
Leflunomide Generic 140 46 $13,971
Duloxetine Hcl Generic 132 38 $3,115
Sulfasalazine Dr (Sulfasalazine) Brand 105 27 $3,958

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Adam Parker's medical specialty?
Dr. Adam Parker practices Rheumatology Physician in Bridgeton, MO.
Where does Dr. Adam Parker practice?
Dr. Adam Parker practices at 12255 Depaul Drive Suite 500, Bridgeton, MO 63044. Office phone: 3142095180.
What is Dr. Adam Parker's NPI?
Dr. Adam Parker's National Provider Identifier (NPI) is 1023306040, issued by NPPES.
Does Dr. Adam Parker accept Medicare assignment?
Yes. Dr. Adam Parker accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Adam Parker commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); New patient office or other outpatient visit (HCPCS 99204). Source: CMS Medicare Physician & Other Practitioners file.