Gwen Williams, MD
NPI 1912975590 · Rheumatology Physician · Birmingham, AL
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gwen Williams, MD is a Rheumatology Physician provider in Birmingham, AL (NPI 1912975590).
Provider details
- NPI number
- 1912975590
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 13251 (AL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
20 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
598 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 239 | $81 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 109 | $116 |
| Aspiration And/Or Injection of Fluid Large Joint Using Ultrasound Guidance20611 | 60 | $104 |
| X-Ray of Hand, 2 Views73120 | 55 | $27 |
| New Patient Office Or Other Outpatient Visit With Moderate Level of Medical Decision Making, If Using Time, 45 Minutes Or More99204 | 30 | $143 |
| Aspiration And/Or Injection of Fluid From Large Joint |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 25 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Prednisone | 587 | 146 |
| Methotrexate Sodiumbrand: Methotrexate | 415 | 87 |
| Hydroxychloroquine Sulfate | 393 | 99 |
| Gabapentin | 383 | 97 |
| Tramadol Hcl | 197 | 42 |
| Hydrocodone/Acetaminophenbrand: Hydrocodone-Acetaminophen | 187 | 27 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$18 across 1 record (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
Registry dates
- Enumerated
- 2006-03-09
- Last updated
- 2010-05-22
Frequently asked questions
- What is Gwen Williams's NPI number?
- Gwen Williams's National Provider Identifier (NPI) is 1912975590, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gwen Williams's specialty?
- Gwen Williams is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Gwen Williams located?
- Gwen Williams's practice location on file with NPPES is 48 Medical Park E Dr, Birmingham, AL 35235.
- What is Gwen Williams's phone number?
- The practice phone number listed in the NPPES registry for Gwen Williams is (205) 838-3090.
- Does Gwen Williams accept Medicare?
- Gwen Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gwen Williams's NPI active?
- Yes — Gwen Williams's NPI (1912975590) is active in the NPPES registry as of the last update on 2010-05-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.