Donald C. Fischer, MD
Psychiatry Physician · Port Washington, WI
Donald C. Fischer, MD is a psychiatry physician with a practice address in Port Washington, Wisconsin, and NPI 1629069737, issued on Oct 31, 2005. Check the license (Wisconsin 22356020, as entered in NPPES) on the Wisconsin Medical Examining Board; the Medicare figures below come from public CMS files.
- Name
- Donald C. Fischer
- Credential
- MD
- Primary taxonomy
- Psychiatry Physician 2084P0800X
- License number
- 22356020 WI
Self-reported in NPPES; status is on the state search - Practice location
- 121 W Main St, Port Washington, WI 53074
- Phone
- (262) 284-8130
- Enumerated
- Oct 31, 2005
- Record last updated
- Jul 13, 2026
- Fax
- (262) 284-8104
- Medicaid ID
- 31980600 WI
- Entity
- Type 1 · individual
8 nearest psychiatry physician records → All 929 in Wisconsin → Look up another NPI →
Also registered at 121 W Main St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Donald C. Fischer in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWisconsin Medical Examining Board
Search for license 22356020Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average psychiatry physician in 2024
59 Medicare Part D claims, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D.
Most prescribed
- Alprazolam11 claims
- Citalopram Hbr11 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.
Industry payments in 2024: $82.50
1 payment: food and beverage; the largest payer was Alkermes, Inc. The 13,693 providers of this specialty with any payment received $4,954.93 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Donald C. Fischer among 929 psychiatry physician records in Wisconsin
Donald C. Fischer, MD is one of 929 psychiatry physician records with a practice address in Wisconsin. 68% 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, 94% newer
- In a Medicare fileYes · 68% of these records are
- In the CMS Doctors and Clinicians fileNo · 47% of these records are
- Record last updated2026 · 52% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084P0800X and a Wisconsin practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
3 psychiatry physician records list a practice address in Port Washington
They are 3 of the 228 NPPES records with a practice address in Port Washington, and 929 psychiatry physician records in Wisconsin.
All 929 in Wisconsin → Every provider in Port Washington → Psychiatry Physician nationwide →
The 8 psychiatry physician records with the nearest ZIP codes
- Michael Churchwell, M.D.Port Washington, WI 530741306075270
- Leandrea Lamberton, MDPort Washington, WI 530741588615322
- Lauri Green, M.D.Pewaukee, WI 530721922045970
- John Carpenter, MDSheboygan, WI 530811982660684
- Sridivya Chavali, MBBSSheboygan, WI 530811881128908
- John Coates, M.D.Sheboygan, WI 530811730317967
- Edmund Dy, MDSheboygan, WI 530811265547434
- Stephen Krummel, MDSheboygan, WI 530811285741728
Common questions
What is Donald C. Fischer, MD's NPI number?
Donald C. Fischer, MD's National Provider Identifier (NPI) is 1629069737, issued on Oct 31, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Donald C. Fischer, MD located?
The NPPES record lists a practice address at 121 W Main St, Port Washington, WI, 53074. Phone: (262) 284-8130. Providers update this record themselves, so call before visiting.
How can I verify Donald C. Fischer, MD's license?
NPPES lists Wisconsin license number 22356020, 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 Donald C. Fischer, MD prescribe under Medicare Part D?
In 2024, Donald C. Fischer, MD had 59 Medicare Part D claims; the average among psychiatry physician prescribers was 1,000. 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.