Timothy Williams, MD
Anesthesiology Physician · Ann Arbor, MI
Timothy Williams, MD is an anesthesiology physician with a practice address in Ann Arbor, Michigan, and NPI 1275027419, issued on Jun 20, 2018. Check the license (Michigan 4301115482, as entered in NPPES) on the Michigan Board of Medicine (LARA); the Medicare figures below come from public CMS files.
- Name
- Timothy Williams
- Credential
- MD
- Primary taxonomy
- Anesthesiology Physician 207L00000X
- License numbers
- 4301115482 MI
T5494 TX
Self-reported in NPPES; status is on the state search - Practice location
- 1500 E. Medical Center Drive, Ann Arbor, MI 48109
- Phone
- (734) 936-4280
- Enumerated
- Jun 20, 2018
- Record last updated
- Mar 3, 2022
- Medicare enrollment
- Enrolled (PECOS I20220315000360); accepts Medicare assignment
- Medical or professional school
- University Of Texas Southwestern Medical School At Dallas, 2018
- Entity
- Type 1 · individual
8 nearest anesthesiology physician records → All 1,720 in Michigan → Look up another NPI →
Also registered at 1500 E. Medical Center Drive
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Merrick BankStudent in an Organized Health Care Education/Training Program1255275962
- Raymond Blush, ACNPNurse Practitioner1801934039
Verify Timothy Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMichigan Board of Medicine (LARA)
Search for license 4301115482Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $14.21
1 payment: food and beverage; the largest payer was Merck Sharp & Dohme LLC. The 17,774 providers of this specialty with any payment received $669.59 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through 2 group practices
- Healthtexas Provider NetworkWaxahachie, TX
- Ntx Anesthesiology Consultants PLLCWaxahachie, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Timothy Williams among 1,720 anesthesiology physician records in Michigan
Timothy Williams, MD is one of 1,720 anesthesiology physician records with a practice address in Michigan. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 85% of them.
- NPI issued2018 · 85% of these records are older, 12% newer
- In a Medicare fileYes · 71% of these records are
- In the CMS Doctors and Clinicians fileYes · 65% of these records are
- Graduated2018 · median 2006 among the 1,126 with a school on file
- Record last updated2022 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a Michigan practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
395 anesthesiology physician records list a practice address in Ann Arbor
They are 395 of the 15,616 NPPES records with a practice address in Ann Arbor, and 1,720 anesthesiology physician records in Michigan.
All 1,720 in Michigan → Every provider in Ann Arbor → Anesthesiology Physician nationwide →
The 8 anesthesiology physician records with the nearest ZIP codes
- Prabhakara Basavaraju, MDAnn Arbor, MI 481091245256809
- Robert Bettendorf, M.D.Ann Arbor, MI 481091043290786
- Milo Engoren, MDAnn Arbor, MI 481091306845144
- Shobha Malviya, MDAnn Arbor, MI 481091275559882
- George Mashour, MDAnn Arbor, MI 481091184690349
- Marykutty Mathai, MDAnn Arbor, MI 481091912923525
- Laurel Moore, M.D.Ann Arbor, MI 481091225081979
- Meenakshi Moorthy, MDAnn Arbor, MI 481091790701316
Common questions
What is Timothy Williams, MD's NPI number?
Timothy Williams, MD's National Provider Identifier (NPI) is 1275027419, issued on Jun 20, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Timothy Williams, MD located?
The NPPES record lists a practice address at 1500 E. Medical Center Drive, Ann Arbor, MI, 48109. Phone: (734) 936-4280. Providers update this record themselves, so call before visiting.
How can I verify Timothy Williams, MD's license?
NPPES lists Michigan license number 4301115482, as entered by the provider. Search the Michigan Board of Medicine (LARA) at https://aca-prod.accela.com/MILARA/GeneralProperty/PropertyLookUp.aspx?isLicensee=Y&TabName=APO. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
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.