William R. Heifner, MD
Family Medicine Physician · Madison, WI
William R. Heifner, MD is a family medicine physician with a practice address in Madison, Wisconsin, and NPI 1285693325, issued on Mar 18, 2006. Check the license (Wisconsin 27655, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- William R. Heifner
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 27655 WI
Self-reported in NPPES; status is on the state search - Practice location
- 2402 Winnebago St, Madison, WI 53704
- Phone
- (608) 242-6855
- Enumerated
- Mar 18, 2006
- Record last updated
- Jun 2, 2023
- Medicare enrollment
- Enrolled (PECOS I20100423000696); accepts Medicare assignment
- Medical or professional school
- University Of Missouri, Columbia School Of Medicine, 1985
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 3,765 in Wisconsin → Look up another NPI →
Also registered at 2402 Winnebago St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sarah Adams, APNPNurse Practitioner1851024285
- Jonathan Anderson, M.D.Internal Medicine Physician1568696342
- Kortney Anderson, PA-CMedical Physician Assistant1154844488
- Kimberly Bannon, M.D.Obstetrics & Gynecology Physician1447549829
- Anna Bedford, LCSWClinical Social Worker1467277004
- Mahnaz Behdad, M.DFamily Medicine Physician1760861553
Verify William R. Heifner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 27655Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average family medicine physician in 2024
48 Medicare Part D claims for 39 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
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
- University OF Wisconsin Medical Foundation IncMadison, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
William R. Heifner among 3,765 family medicine physician records in Wisconsin
William R. Heifner, 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 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 46% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 62% of these records are
- Graduated1985 · median 2007 among the 2,347 with a school on file
- Record last updated2023 · 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).
284 family medicine physician records list a practice address in Madison
They are 284 of the 15,014 NPPES records with a practice address in Madison, and 3,765 family medicine physician records in Wisconsin.
All 3,765 in Wisconsin → Every provider in Madison → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Richard Brown, MDMadison, WI 537041033170824
- Donald Carufel-Wert, MDMadison, WI 537041023079811
- Jeffrey Corrigan, MDMadison, WI 537041558370692
- Thomas Hartjes, MDMadison, WI 537041083635700
- Jean Haughwout, M.D.Madison, WI 537041962447763
- Gregg Kissel, MDMadison, WI 537041902867799
- Russell Lemmon, D.O.Madison, WI 537041518950591
- Louis Sanner, MDMadison, WI 537041972564870
Common questions
What is William R. Heifner, MD's NPI number?
William R. Heifner, MD's National Provider Identifier (NPI) is 1285693325, issued on Mar 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is William R. Heifner, MD located?
The NPPES record lists a practice address at 2402 Winnebago St, Madison, WI, 53704. Phone: (608) 242-6855. Providers update this record themselves, so call before visiting.
How can I verify William R. Heifner, MD's license?
NPPES lists Wisconsin license number 27655, 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 R. Heifner, MD prescribe under Medicare Part D?
In 2024, William R. Heifner, MD had 48 Medicare Part D claims for 39 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.