William James Wittman, MD
Internal Medicine Physician · Oconto Falls, WI
William James Wittman, MD is an internal medicine physician with a practice address in Oconto Falls, Wisconsin, and NPI 1902880511, issued on Dec 6, 2005. Check the license (Wisconsin 24066, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- William James Wittman
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 24066 WI
Self-reported in NPPES; status is on the state search - Practice location
- 107 E Highland Dr, Oconto Falls, WI 54154
- Phone
- (920) 846-3092
- Enumerated
- Dec 6, 2005
- Record last updated
- Aug 24, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (920) 846-8313
- Medicare enrollment
- Enrolled (PECOS I20100520000305); accepts Medicare assignment
- Medical or professional school
- University Of Minnesota Medical School, 1980
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,078 in Wisconsin → Look up another NPI →
Also registered at 107 E Highland Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Holly Condie, APNPFamily Nurse Practitioner1033843248
Verify William James Wittman in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 24066Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
66% fewer Medicare Part D claims than the average internal medicine physician in 2024
1,084 Medicare Part D claims for 237 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 22 claims were for opioids.
Most prescribed
- Atorvastatin Calcium114 claims
- Furosemide87 claims
- Eliquis74 claims
- Clopidogrel66 claims
- Amlodipine Besylate59 claims
- Metoprolol Succinate49 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.
Bills Medicare through one group practice
- Apogee Medical Group Wisconsin SCGreen Bay, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William James Wittman among 2,078 internal medicine physician records in Wisconsin
William James Wittman, MD is one of 2,078 internal medicine physician records with a practice address in Wisconsin. 70% 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, 91% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated1980 · median 2002 among the 1,098 with a school on file
- Record last updated2020 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
3 internal medicine physician records list a practice address in Oconto Falls
They are 3 of the 101 NPPES records with a practice address in Oconto Falls, and 2,078 internal medicine physician records in Wisconsin.
All 2,078 in Wisconsin → Every provider in Oconto Falls → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Alexa GavagaOconto Falls, WI 541541093166266
- Henry Loomans, MDOconto Falls, WI 541541174630628
- Michael Flood, MDOneida, WI 541551710079934
- Divya Hotchandani, MDOneida, WI 541551891740262
- Sarvadaman Kumar, MDOconto, WI 541531356367163
- John Macdonald, MDOconto, WI 541531467437715
- Ravinder Vir, MDOneida, WI 541551780633669
- Walid Omer, M.DPeshtigo, WI 541571386909737
Common questions
What is William James Wittman, MD's NPI number?
William James Wittman, MD's National Provider Identifier (NPI) is 1902880511, issued on Dec 6, 2005. An NPI identifies a provider in billing; it is not a license.
Where is William James Wittman, MD located?
The NPPES record lists a practice address at 107 E Highland Dr, Oconto Falls, WI, 54154. Phone: (920) 846-3092. Providers update this record themselves, so call before visiting.
How can I verify William James Wittman, MD's license?
NPPES lists Wisconsin license number 24066, 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 William James Wittman, MD prescribe under Medicare Part D?
In 2024, William James Wittman, MD had 1,084 Medicare Part D claims for 237 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.