NPPES file of Aug 9, 2026

William N. Donovan, MD

Sleep Medicine (Internal Medicine) Physician · Fitchburg, WI

William N. Donovan, MD is a sleep medicine (internal medicine) physician with a practice address in Fitchburg, Wisconsin, and NPI 1972556827, issued on May 19, 2006. Check the license (Wisconsin 24149-020, as entered in NPPES) on the Wisconsin Medical Examining Board; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1972556827
Name
William N. Donovan
Credential
MD
Primary taxonomy
Sleep Medicine (Internal Medicine) Physician 207RS0012X
License number
24149-020 WI
Self-reported in NPPES; status is on the state search
Practice location
2844 Index RD, Fitchburg, WI 53713
Phone
(608) 229-7979
Enumerated
May 19, 2006
Record last updated
Dec 9, 2016 (not updated in 10 years: call before relying on the address or phone)
Fax
(608) 229-8110
Medicaid ID
30405300 WI
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
Download card Updates feed

8 nearest sleep medicine (internal medicine) physician records → All 27 in Wisconsin → Look up another NPI →

Also registered at 2844 Index RD

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Ewa Alexander, MDSleep Medicine (Internal Medicine) Physician1609092584
  2. Joseph Crisalli, M.D.Sleep Medicine (Internal Medicine) Physician1417987736
  3. Megan Galske, APNPNurse Practitioner1073022356
  4. Harrison Gimbel, MDSleep Medicine (Internal Medicine) Physician1184042723
  5. Tanya Guntly, PA-CPhysician Assistant1932147857
  6. Don Harden, MDSleep Medicine (Internal Medicine) Physician1144380577

Verify William N. Donovan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWisconsin Medical Examining Board
    Search for license 24149-020    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Wisconsin license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

Is this page about you? You can ask us to correct, restrict or remove it: how.

William N. Donovan among 27 sleep medicine (internal medicine) physician records in Wisconsin

William N. Donovan, MD is one of 27 sleep medicine (internal medicine) physician records with a practice address in Wisconsin. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 11% of them.

  • NPI issued2006 · 11% of these records are older, 56% newer
  • In a Medicare fileNo · 85% of these records are
  • In the CMS Doctors and Clinicians fileNo · 63% of these records are
  • Record last updated2016 · 44% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RS0012X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

7 sleep medicine (internal medicine) physician records list a practice address in Fitchburg

They are 7 of the 740 NPPES records with a practice address in Fitchburg, and 27 sleep medicine (internal medicine) physician records in Wisconsin. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

All 27 in Wisconsin → Every provider in Fitchburg → Sleep Medicine (Internal Medicine) Physician nationwide →

The 8 sleep medicine (internal medicine) physician records with the nearest ZIP codes

  1. Ewa Alexander, MDFitchburg, WI 537131609092584
  2. Joseph Crisalli, M.D.Fitchburg, WI 537131417987736
  3. Harrison Gimbel, MDFitchburg, WI 537131184042723
  4. Don Harden, MDFitchburg, WI 537131144380577
  5. Scott Johnson, M.D.Fitchburg, WI 537131790957371
  6. Jacalyn Nelson, MDFitchburg, WI 537131063430833
  7. Mary Klink, MDMadison, WI 537151033185046
  8. Kenneth Casey, MDMadison, WI 537191952384703

Common questions

What is William N. Donovan, MD's NPI number?

William N. Donovan, MD's National Provider Identifier (NPI) is 1972556827, issued on May 19, 2006. An NPI identifies a provider in billing; it is not a license.

Where is William N. Donovan, MD located?

The NPPES record lists a practice address at 2844 Index RD, Fitchburg, WI, 53713. Phone: (608) 229-7979. Providers update this record themselves, so call before visiting.

How can I verify William N. Donovan, MD's license?

NPPES lists Wisconsin license number 24149-020, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.