Alan C. Williams, MD
Diagnostic Radiology Physician · Wausau, WI
Alan C. Williams, MD is a diagnostic radiology physician with a practice address in Wausau, Wisconsin, and NPI 1922118512, issued on Aug 30, 2006. Check the license (Wisconsin 29845, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Alan C. Williams
- Credential
- MD
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License number
- 29845 WI
Self-reported in NPPES; status is on the state search - Practice location
- 2727 Plaza Drive, Wausau, WI 54401
- Phone
- (715) 387-9055
- Enumerated
- Aug 30, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Medicaid ID
- 31441900 WI
- Medicare enrollment
- Enrolled (PECOS I20200326002668); accepts Medicare assignment
- Medical or professional school
- Loyola University Of Chicago, Stritch School Of Medicine, 1975
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 1,005 in Wisconsin → Look up another NPI →
Also registered at 2727 Plaza Drive
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Alan C. Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 29845Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Elite Imaging LLCPlantation, FL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alan C. Williams among 1,005 diagnostic radiology physician records in Wisconsin
Alan C. Williams, MD is one of 1,005 diagnostic radiology physician records with a practice address in Wisconsin. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 48% newer
- In a Medicare fileYes · 68% of these records are
- In the CMS Doctors and Clinicians fileYes · 66% of these records are
- Graduated1975 · median 2006 among the 664 with a school on file
- Record last updated2007 · 51% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Diagnostic Radiology Physician providers in Wisconsin
There are 1,005 diagnostic radiology physician records in Wisconsin.
All 1,005 in Wisconsin → Every provider in Wausau → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- Philip Albert, M.D.Wausau, WI 544011073619623
- Austin Belton, MDWausau, WI 544011528077419
- James Collison, MDWausau, WI 544011194734095
- Rosita Go, MDWausau, WI 544011306946025
- Craig Hackworth, MDWausau, WI 544011255340162
- Reyaad Hayek, MDWausau, WI 544011710992276
- Ian Kurth, MDWausau, WI 544011528043627
- Bradley Mullen, M.D.Wausau, WI 544011336253632
Common questions
What is Alan C. Williams, MD's NPI number?
Alan C. Williams, MD's National Provider Identifier (NPI) is 1922118512, issued on Aug 30, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Alan C. Williams, MD located?
The NPPES record lists a practice address at 2727 Plaza Drive, Wausau, WI, 54401. Phone: (715) 387-9055. Providers update this record themselves, so call before visiting.
How can I verify Alan C. Williams, MD's license?
NPPES lists Wisconsin license number 29845, as entered by the provider. Search the Wisconsin Medical Examining Board at https://dsps.wi.gov/Pages/BoardsCouncils/MEB/Default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
What is Alan C. Williams, MD's MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.