Timothy Alphonzo Williams, M.D.
Nephrology Physician · Birmingham, AL
Timothy Alphonzo Williams, M.D. is a nephrology physician with a practice address in Birmingham, Alabama, and NPI 1023335312, issued on Apr 26, 2010. Check the license (Alabama 31432, as entered in NPPES) on the Alabama Board of Medical Examiners; the Medicare figures below come from public CMS files.
- Name
- Timothy Alphonzo Williams
- Credential
- M.D.
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- 31432 AL
Self-reported in NPPES; status is on the state search - Practice location
- 35 W Lakeshore Dr Ste 200, Birmingham, AL 35209
- Phone
- (205) 226-5900
- Enumerated
- Apr 26, 2010
- Record last updated
- Oct 31, 2018 (not updated in 8 years: call before relying on the address or phone)
- Fax
- (205) 226-5937
- Medicare enrollment
- Enrolled (PECOS I20150723008091); accepts Medicare assignment
- Medical or professional school
- University Of Alabama School Of Medicine, 2010
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 183 in Alabama → Look up another NPI →
Verify Timothy Alphonzo Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersAlabama Board of Medical Examiners
Search for license 31432Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
35% fewer Medicare Part D claims than the average nephrology physician in 2024
949 Medicare Part D claims for 205 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 24% of claims.
Most prescribed
- Farxiga121 claims
- Amlodipine Besylate98 claims
- Calcitriol82 claims
- Chlorthalidone73 claims
- Losartan Potassium59 claims
- Lisinopril49 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 30 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through 2 group practices
- Fresenius Vascular Care Birmingham Mso LLCVestavia Hills, AL
- Nephrology Associates, PCAlabaster, AL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Timothy Alphonzo Williams among 183 nephrology physician records in Alabama
Timothy Alphonzo Williams, M.D. is one of 183 nephrology physician records with a practice address in Alabama. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2010, is newer than 68% of them.
- NPI issued2010 · 68% of these records are older, 27% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 78% of these records are
- Graduated2010 · median 2003 among the 143 with a school on file
- Record last updated2018 · 46% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Alabama practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in Alabama
There are 183 nephrology physician records in Alabama.
All 183 in Alabama → Every provider in Birmingham → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- John Brouillette, MDHomewood, AL 352091821056318
- Emily Feely, MDHomewood, AL 352091265536569
- Harold Giles, M.D.Homewood, AL 352091811945454
- Jeffrey Glaze, MDHomewood, AL 352091255389896
- Thomas Ozbirn, DOHomewood, AL 352091811955156
- David Tharpe, MDHomewood, AL 352091902864440
- Theodore Feely, MDBirmingham, AL 352111982756599
- Jerry Jackson, MDBirmingham, AL 352111467400051
Common questions
What is Timothy Alphonzo Williams, M.D.'s NPI number?
Timothy Alphonzo Williams, M.D.'s National Provider Identifier (NPI) is 1023335312, issued on Apr 26, 2010. An NPI identifies a provider in billing; it is not a license.
Where is Timothy Alphonzo Williams, M.D. located?
The NPPES record lists a practice address at 35 W Lakeshore Dr Ste 200, Birmingham, AL, 35209. Phone: (205) 226-5900. Providers update this record themselves, so call before visiting.
How can I verify Timothy Alphonzo Williams, M.D.'s license?
NPPES lists Alabama license number 31432, as entered by the provider. Search the Alabama Board of Medical Examiners at https://www.albme.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Timothy Alphonzo Williams, M.D. prescribe under Medicare Part D?
In 2024, Timothy Alphonzo Williams, M.D. had 949 Medicare Part D claims for 205 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.
What is Timothy Alphonzo Williams, M.D.'s MIPS final score?
The 2023 MIPS final score is 30 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.