James M. Williams, MD
Family Medicine Physician · Green Bay, WI
James M. Williams, MD is a family medicine physician with a practice address in Green Bay, Wisconsin, and NPI 1407849433, issued on Aug 24, 2005. Check the license (Wisconsin 44378-020, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- James M. Williams
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 44378-020 WI
Self-reported in NPPES; status is on the state search - Practice location
- 2480 Marina Cir Unit 114, Green Bay, WI 54304
- Phone
- (920) 360-6282
- Enumerated
- Aug 24, 2005
- Record last updated
- Mar 8, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (920) 283-1278
- Medicaid ID
- 34203400 WI
- Medicare enrollment
- Enrolled (PECOS I20040917001076); accepts Medicare assignment
- Medical or professional school
- Eastern Virginia Medical School, 1979
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,765 in Wisconsin → Look up another NPI →
Verify James M. Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 44378-020Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
5.9 times the Medicare Part D claims of the average family medicine physician in 2024
20,914 Medicare Part D claims for 704 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 190 claims were for opioids.
Most prescribed
- Atorvastatin Calcium833 claims
- Levothyroxine Sodium815 claims
- Furosemide670 claims
- Quetiapine Fumarate614 claims
- Memantine Hcl601 claims
- Amlodipine Besylate575 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 practice group's MIPS final score for 2023 (Medicare payment program): 87.3 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. 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, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- Geiger Medical LLCBrookfield, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
James M. Williams among 3,765 family medicine physician records in Wisconsin
James M. Williams, MD is one of 3,765 family medicine physician records with a practice address in Wisconsin. 75% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 90% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1979 · median 2007 among the 2,347 with a school on file
- Record last updated2021 · 56% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
94 family medicine physician records list a practice address in Green Bay
They are 94 of the 4,619 NPPES records with a practice address in Green Bay, and 3,765 family medicine physician records in Wisconsin.
All 3,765 in Wisconsin → Every provider in Green Bay → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Robert Anderson, MDGreen Bay, WI 543041477559938
- Edward Bantamoi, MDGreen Bay, WI 543041457376758
- James Bell, M.D.Green Bay, WI 543041174628374
- William Benn, MDGreen Bay, WI 543041346275344
- Patrick Buranicz, DOGreen Bay, WI 543041265095699
- Gail Carels, MDGreen Bay, WI 543041255364642
- Donn Dougherty, M.D.Green Bay, WI 543041992735351
- James Ebben, MDGreen Bay, WI 543041497730865
Common questions
What is James M. Williams, MD's NPI number?
James M. Williams, MD's National Provider Identifier (NPI) is 1407849433, issued on Aug 24, 2005. An NPI identifies a provider in billing; it is not a license.
Where is James M. Williams, MD located?
The NPPES record lists a practice address at 2480 Marina Cir Unit 114, Green Bay, WI, 54304. Phone: (920) 360-6282. Providers update this record themselves, so call before visiting.
How can I verify James M. Williams, MD's license?
NPPES lists Wisconsin license number 44378-020, 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.
How much does James M. Williams, MD prescribe under Medicare Part D?
In 2024, James M. Williams, MD had 20,914 Medicare Part D claims for 704 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is James M. Williams, MD's MIPS final score?
The 2023 MIPS final score is 87.3 of 100, reported for the practice group. 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.