Fred Walbrun, MD
Geriatric Medicine (Internal Medicine) Physician · Green Bay, WI
Fred Walbrun, MD is a geriatric medicine (internal medicine) physician with a practice address in Green Bay, Wisconsin, and NPI 1306848700, issued on Aug 15, 2005. Check the license (Wisconsin 22566, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Fred Walbrun
- Credential
- MD
- Primary taxonomy
- Geriatric Medicine (Internal Medicine) Physician 207RG0300X
- License number
- 22566 WI
Self-reported in NPPES; status is on the state search - Practice location
- 1715 Dousman St, Green Bay, WI 54303
- Phone
- (920) 272-1570
- Enumerated
- Aug 15, 2005
- Record last updated
- Sep 15, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (920) 431-1823
- Entity
- Type 1 · individual
8 nearest geriatric medicine (internal medicine) physician records → All 110 in Wisconsin → Look up another NPI →
Also registered at 1715 Dousman St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Lindsey Angst, OTROccupational Therapist1821322702
- Sally Bowa, APNPNurse Practitioner1932532991
Verify Fred Walbrun in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 22566Check 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 geriatric medicine (internal medicine) physician in 2024
39 Medicare Part D claims, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Furosemide13 claims
- Metoprolol Tartrate13 claims
- Spironolactone13 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.
Fred Walbrun among 110 geriatric medicine (internal medicine) physician records in Wisconsin
Fred Walbrun, MD is one of 110 geriatric medicine (internal medicine) physician records with a practice address in Wisconsin. 76% 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, 95% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileNo · 50% of these records are
- Record last updated2016 · 47% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0300X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Geriatric Medicine (Internal Medicine) Physician providers in Wisconsin
There are 110 geriatric medicine (internal medicine) physician records in Wisconsin.
All 110 in Wisconsin → Every provider in Green Bay → Geriatric Medicine (Internal Medicine) Physician nationwide →
The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes
- Aanuoluwa Abiola, M.DMarshfield, WI 544491598117574
- Scott Erickson, MDMarshfield, WI 544491770683427
- Frank Guzowski, MDMarshfield, WI 544491871693523
- Robert Phillips, MDMarshfield, WI 544491518060615
- William Yanke, MDMarshfield, WI 544491992805659
- Elwyn Mantei, MDMarinette, WI 541431568459998
- Katie Hagerstrom, MSN, APNP, AGPC-BCKaukauna, WI 541301972994093
- Robert Wampler, MDDe Pere, WI 541151184659724
Common questions
What is Fred Walbrun, MD's NPI number?
Fred Walbrun, MD's National Provider Identifier (NPI) is 1306848700, issued on Aug 15, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Fred Walbrun, MD located?
The NPPES record lists a practice address at 1715 Dousman St, Green Bay, WI, 54303. Phone: (920) 272-1570. Providers update this record themselves, so call before visiting.
How can I verify Fred Walbrun, MD's license?
NPPES lists Wisconsin license number 22566, 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 Fred Walbrun, MD prescribe under Medicare Part D?
In 2024, Fred Walbrun, MD had 39 Medicare Part D claims; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. 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.