Ann N. Hudson, MD
Internal Medicine Physician · Eau Claire, WI
Ann N. Hudson, MD is an internal medicine physician with a practice address in Eau Claire, Wisconsin, and NPI 1194756460, issued on Jul 5, 2006. Check the license (Wisconsin 50907, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Ann N. Hudson
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- 50907 WI
Self-reported in NPPES; status is on the state search - Practice location
- 1400 Bellinger St, Eau Claire, WI 54703
- Phone
- (715) 838-5222
- Enumerated
- Jul 5, 2006
- Record last updated
- Oct 7, 2020 (not updated in 6 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20080116000241); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 2,078 in Wisconsin → Look up another NPI →
Also registered at 1400 Bellinger St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Ann N. Hudson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 50907Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average internal medicine physician in 2024
167 Medicare Part D claims for 32 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Eliquis17 claims
- Metoprolol Tartrate11 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 2 group practices
- Mayo Clinic Health System-Northwest Wisconsin Region IncEau Claire, WI
- Mayo Clinic Health System-Southwest Wisconsin Region IncLa Crosse, WI
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ann N. Hudson among 2,078 internal medicine physician records in Wisconsin
Ann N. Hudson, 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 2006, is newer than 9% of them.
- NPI issued2006 · 9% of these records are older, 46% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileYes · 53% of these records are
- Graduated2002 · 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).
54 internal medicine physician records list a practice address in Eau Claire
They are 54 of the 3,085 NPPES records with a practice address in Eau Claire, and 2,078 internal medicine physician records in Wisconsin.
All 2,078 in Wisconsin → Every provider in Eau Claire → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Jean Anderson, MDEau Claire, WI 547031992775761
- Mark Edstrom, MDEau Claire, WI 547031518937382
- Richard Horecki, MDEau Claire, WI 547031245200013
- Deborah Hower, MDEau Claire, WI 547031073593257
- Celestine Jain-Ofoma, M.D.Eau Claire, WI 547031831137249
- Wendy McDermott, MDEau Claire, WI 547031316907934
- Morris Pasternack, MDEau Claire, WI 547031578536082
- Christopher Roberts, MDEau Claire, WI 547031427028299
Common questions
What is Ann N. Hudson, MD's NPI number?
Ann N. Hudson, MD's National Provider Identifier (NPI) is 1194756460, issued on Jul 5, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Ann N. Hudson, MD located?
The NPPES record lists a practice address at 1400 Bellinger St, Eau Claire, WI, 54703. Phone: (715) 838-5222. Providers update this record themselves, so call before visiting.
How can I verify Ann N. Hudson, MD's license?
NPPES lists Wisconsin license number 50907, 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 Ann N. Hudson, MD prescribe under Medicare Part D?
In 2024, Ann N. Hudson, MD had 167 Medicare Part D claims for 32 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.