Diane M. Witek, M.D.
Family Medicine Physician · Jackson, WI
Diane M. Witek, M.D. is a family medicine physician with a practice address in Jackson, Wisconsin, and NPI 1316157779, issued on May 23, 2007. Check the license (Wisconsin 52622, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Diane M. Witek
- Credential
- M.D.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 52622 WI
Self-reported in NPPES; status is on the state search - Practice location
- W225N16711 Cedar Park CT, Jackson, WI 53037
- Phone
- (262) 677-1101
- Enumerated
- May 23, 2007
- Record last updated
- Apr 1, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (262) 306-2964
- Medicare enrollment
- Enrolled (PECOS I20100913000725); accepts Medicare assignment
- Medical or professional school
- University Of Wisconsin School Of Medicine, 2007
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,765 in Wisconsin → Look up another NPI →
Also registered at W225N16711 Cedar Park CT
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Bridget Kratz-Schwartz, PTPhysical Therapist1023301710
- Nathan Matje, PTPhysical Therapist1285675926
- Elizabeth Mortag, DPTPhysical Therapist1134522170
- John O'Leary, PA-CPhysician Assistant1487347928
- Sonali Patel, O.D.Optometrist1619380755
- Christina Rutsch, M.D.Family Medicine Physician1497950406
Verify Diane M. Witek in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 52622Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
93% more Medicare Part D claims than the average family medicine physician in 2024
6,826 Medicare Part D claims for 509 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims. 133 claims were for opioids.
Most prescribed
- Atorvastatin Calcium346 claims
- Lisinopril235 claims
- Levothyroxine Sodium221 claims
- Omeprazole188 claims
- Amlodipine Besylate170 claims
- Losartan Potassium165 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
- Froedtert Andthe Medical College OF Wisconsin Community Physicians IncMenomonee Falls, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Diane M. Witek among 3,765 family medicine physician records in Wisconsin
Diane M. Witek, M.D. 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 2007, is newer than 54% of them.
- NPI issued2007 · 54% of these records are older, 41% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated2007 · median 2007 among the 2,347 with a school on file
- Record last updated2013 · 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).
3 family medicine physician records list a practice address in Jackson
They are 3 of the 62 NPPES records with a practice address in Jackson, and 3,765 family medicine physician records in Wisconsin.
All 3,765 in Wisconsin → Every provider in Jackson → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Christina Rutsch, M.D.Jackson, WI 530371497950406
- Samuel Stevens, M.D.Jackson, WI 530371306379698
- Linda Douglas, MDIxonia, WI 530361538110515
- James Milford, MDJohnson Creek, WI 530381548237076
- David Misorski, MDJohnson Creek, WI 530381780791285
- Lindsey Buswell-Cleary, D.O.Juneau, WI 530391619187184
- Mateusz Gwizdala, MDKewaskum, WI 530401821580135
- Anthony Rutkowski, MDKewaskum, WI 530401114339850
Common questions
What is Diane M. Witek, M.D.'s NPI number?
Diane M. Witek, M.D.'s National Provider Identifier (NPI) is 1316157779, issued on May 23, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Diane M. Witek, M.D. located?
The NPPES record lists a practice address at W225N16711 Cedar Park CT, Jackson, WI, 53037. Phone: (262) 677-1101. Providers update this record themselves, so call before visiting.
How can I verify Diane M. Witek, M.D.'s license?
NPPES lists Wisconsin license number 52622, 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 Diane M. Witek, M.D. prescribe under Medicare Part D?
In 2024, Diane M. Witek, M.D. had 6,826 Medicare Part D claims for 509 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.