Timothy J. Williams, M.D.
Family Medicine Physician · Metamora, IL
Timothy J. Williams, M.D. is a family medicine physician with a practice address in Metamora, Illinois, and NPI 1508893595, issued on Jun 27, 2006. Check the license (Illinois 036-133608, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Timothy J. Williams
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License numbers
- 036-133608 IL
085001585 IL
Self-reported in NPPES; status is on the state search - Practice location
- 901 W Walnut St, Metamora, IL 61548
- Phone
- (309) 367-4144
- Enumerated
- Jun 27, 2006
- Record last updated
- Feb 29, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (309) 383-4063
- Medicare enrollment
- Enrolled (PECOS I20131223000150); accepts Medicare assignment
- Entity
- Type 1 · individual
Also registered at 901 W Walnut St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ellyn Prescher, NPFamily Nurse Practitioner1801268081
- Jennah Siwak, M.D.Family Medicine Physician1205220597
- Leah Stewart, APRN, FNP-CFamily Nurse Practitioner1164922522
- Denice Studer, FNPNurse Practitioner1144270471
Verify Timothy J. Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036-133608Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.9 times the Medicare Part D claims of the average family medicine physician in 2024
10,207 Medicare Part D claims for 685 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 93 claims were for opioids.
Most prescribed
- Atorvastatin Calcium793 claims
- Levothyroxine Sodium410 claims
- Lisinopril367 claims
- Metformin Hcl327 claims
- Amlodipine Besylate320 claims
- Losartan Potassium308 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.
Industry payments in 2024: $362.31
20 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 55,478 providers of this specialty with any payment received $902.55 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 one group practice
- Osf Multi-Specialty GroupDixon, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
4 family medicine physician records list a practice address in Metamora
They are 4 of the 53 NPPES records with a practice address in Metamora, and 6,215 family medicine physician records in Illinois.
All 4 in Metamora → All 6,215 in Illinois → Every provider in Metamora →
Other family medicine physician records in Illinois
- Jon Aagaard, MDWheaton, IL1750496923
- Napoleon Abando, MDWoodstock, IL1003972753
- Nikka Abaricia, MDChicago, IL1790366342
- Mohemmed AbbasChicago, IL1609612522
- Muhammad AbbasAlton, IL1588341556
- Syed AbbasWest Dundee, IL1972733103
- Stefanie AbbottMaywood, IL1861137457
- Roann Abdeladl, MDEvanston, IL1437087103
- Ahmed Abdelkader, MDChicago, IL1659104230
- Guy Abderholden, MDAntioch, IL1902899792
Common questions
What is Timothy J. Williams, M.D.'s NPI number?
Timothy J. Williams, M.D.'s National Provider Identifier (NPI) is 1508893595, issued on Jun 27, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Timothy J. Williams, M.D. located?
The NPPES record lists a practice address at 901 W Walnut St, Metamora, IL, 61548. Phone: (309) 367-4144. Providers update this record themselves, so call before visiting.
How can I verify Timothy J. Williams, M.D.'s license?
NPPES lists Illinois license number 036-133608, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Timothy J. Williams, M.D. prescribe under Medicare Part D?
In 2024, Timothy J. Williams, M.D. had 10,207 Medicare Part D claims for 685 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
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.