Timothy Williams, M.D.
NPI 1023335312 · Nephrology Physician · Birmingham, AL
Enrolled with Medicare as Practitioner - Nephrology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Timothy Williams, M.D. is a Nephrology Physician provider in Birmingham, AL (NPI 1023335312).
Provider details
- NPI number
- 1023335312
- Entity type
- Individual
- Primary specialty
- Nephrology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 31432 (AL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
16 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
989 Medicare services, 2024 (ranked within specialty)
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 methodology.
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) |
|---|---|---|
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 35 Minutes99232 | 386 | $72 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 182 | $87 |
| Dialysis Services, 4 Or More Physician Visits Per Month (20 Years Or Older)90960 | 73 | $323 |
| 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 | 59 | $15 |
| Subsequent Hospital Care With Moderate Levelof Medical Decision Making, If Using Time, at Least 50 Minutes99233 | 48 | $109 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 22 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Dapagliflozin Propanediolbrand: Farxiga | 121 | 22 |
| Amlodipine Besylate | 98 | 32 |
| Calcitriol | 82 | 22 |
| Chlorthalidone | 73 | 20 |
| Losartan Potassium | 59 | 25 |
| Lisinopril | 49 | — |
| Carvedilol | 33 | 14 |
Practice location
Mailing address
Registry dates
- Enumerated
- 2010-04-26
- Last updated
- 2018-10-31
Frequently asked questions
- What is Timothy Williams's NPI number?
- Timothy Williams's National Provider Identifier (NPI) is 1023335312, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Timothy Williams's specialty?
- Timothy Williams is listed in the NPPES registry with a primary specialty of Nephrology Physician (Allopathic & Osteopathic Physicians).
- Where is Timothy Williams located?
- Timothy Williams's practice location on file with NPPES is 35 W Lakeshore Dr Ste 200, Birmingham, AL 35209-7250.
- What is Timothy Williams's phone number?
- The practice phone number listed in the NPPES registry for Timothy Williams is (205) 226-5900.
- Does Timothy Williams accept Medicare?
- Timothy Williams is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Timothy Williams's NPI active?
- Yes — Timothy Williams's NPI (1023335312) is active in the NPPES registry as of the last update on 2018-10-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.