Adam Parker, M.D.
NPI 1023306040 · Rheumatology Physician · Bridgeton, MO
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Adam Parker, M.D. is a Rheumatology Physician provider in Bridgeton, MO (NPI 1023306040).
Provider details
- NPI number
- 1023306040
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 2011018542 (MO)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
14 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
1,009 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 659 | $92 |
| Visit Complexity Inherent to Evaluation and Management Associated With Medical Care Services That Serve As the Continuing Focal Point for All Needed Health Care Services And/Or With Medical Care Services That Are Part of Ongoing Care Related to a Patient'SG2211 | 310 | $16 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 40 | $128 |
Typical Medicare-allowed amounts for these services range $16–$128 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 41 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Hydroxychloroquine Sulfate | 896 | 237 |
| Methotrexate Sodiumbrand: Methotrexate | 505 | 128 |
| Prednisone | 426 | 166 |
| Allopurinol | 369 | 107 |
| Gabapentin | 276 | 92 |
| Duloxetine Hcl | 186 | 50 |
| Folic Acid | 175 | 49 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$88 across 5 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 1402 S Grand BlvdSaint Louis, MO 63104-1004Phone: (314) 577-8760
Registry dates
- Enumerated
- 2011-07-11
- Last updated
- 2020-10-26
- Certified
- 2020-10-26
Frequently asked questions
- What is Adam Parker's NPI number?
- Adam Parker's National Provider Identifier (NPI) is 1023306040, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Adam Parker's specialty?
- Adam Parker is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Adam Parker located?
- Adam Parker's practice location on file with NPPES is 12255 Depaul Drive Suite 500, Bridgeton, MO 63044.
- What is Adam Parker's phone number?
- The practice phone number listed in the NPPES registry for Adam Parker is (314) 209-5180.
- Does Adam Parker accept Medicare?
- Adam Parker is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Adam Parker's NPI active?
- Yes — Adam Parker's NPI (1023306040) is active in the NPPES registry as of the last update on 2020-10-26.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.