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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

DONALD C FISCHER MD
NPI 1629069737
Psychiatry & Neurology - Psychiatry in Port Washington, WI

Active since October 31, 2005
121 W MAIN ST, STE 350, PORT WASHINGTON, WI 53074(262) 284-8130(262) 284-8104 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 13, 2026, Mar 7, 2023, Apr 10, 2018 (3 updates tracked since 2018).

About Donald C Fischer Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DONALD C FISCHER MD (NPI 1629069737) is an individual psychiatry provider in Port Washington, Wisconsin, licensed in Wisconsin (22356020) and active in the NPI registry since October 2005.

NPPES Registry Identity

NPI1629069737
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameDONALD C FISCHERCredential: MD
Location Address121 W MAIN ST, STE 350Port Washington, WI 53074-1813
Mailing Address108 E North StFriendship, WI 53934-9443 · (608) 339-4505 · Fax (608) 339-4593
Phone(262) 284-8130
Fax(262) 284-8104
Sole ProprietorNo
Enumeration DateOctober 31, 2005
Last NPPES UpdateJuly 13, 20263 updates tracked since enumeration
✔ NPI 1629069737 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in WI · 22356020
Definition
A Psychiatrist specializes in the prevention, diagnosis, and treatment of mental disorders, emotional disorders, psychotic disorders, mood disorders, anxiety disorders, substance-related disorders, sexual and gender identity disorders and adjustment disorders. Biologic, psychological, and social components of illnesses are explored and understood in treatment of the whole person. Tools used may include diagnostic laboratory tests, prescribed medications, evaluation and treatment of psychological and interpersonal problems with individuals and families, and intervention for coping with stress, crises, and other problems.
121 W MAIN ST, Port Washington, WI 53074
Open in Google Maps ↗

Other Identifiers 1

Medicaid31980600WI

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Group Health Cooperative-SCW, Security Health Plan.Insurance ›

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ASHLEY LOREN BUCKMASTER APSW
Social Worker
121 W MAIN ST
PORT WASHINGTON, WI 53074
Ozaukee County (262) 284-8200
RENEE M KERANEN MSW
Social Worker (Clinical)
121 W MAIN ST
PORT WASHINGTON, WI 53074
Ozaukee County (262) 284-8133
JESSICA OLLMAN
Social Worker
121 W MAIN ST
PORT WASHINGTON, WI 53074
Ozaukee County (262) 284-8148
MRS. HEATHER LYNN CARLSON MA, LPC
Counselor (Professional)
121 W MAIN ST
PORT WASHINGTON, WI 53074
Ozaukee County (262) 284-8229
EMMA LEWIS LPC-IT
Counselor (Mental Health)
121 W MAIN ST
PORT WASHINGTON, WI 53074
Ozaukee County (262) 284-8200
SANDRA JACQUES LCSW
Social Worker (Clinical)
121 W MAIN ST, SUITE 350
PORT WASHINGTON, WI 53074
Ozaukee County (262) 284-8130
CHRISTINA M JOHNSON CAPSW, SAC-IT
Counselor
121 W MAIN ST
PORT WASHINGTON, WI 53074
Ozaukee County (262) 284-8200
MRS. DEANNA SCHULTZ-DEPIES LCSW
Social Worker (Clinical)
121 W MAIN ST, #350
PORT WASHINGTON, WI 53074
Ozaukee County (262) 284-8140

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Donald Fischer's NPI number?

The NPI number for Donald Fischer is 1629069737. It was assigned to this individual provider in the NPPES registry on October 31, 2005.

Where is Donald Fischer located?

Donald Fischer practices at 121 W Main St Ste 350, Port Washington, WI 53074. The listed phone number is (262) 284-8130.

What is Donald Fischer's specialty?

The primary specialty registered for this NPI is Psychiatry & Neurology, specializing in Psychiatry, with taxonomy code 2084P0800X.

What insurance does Donald Fischer accept?

Health plans from Group Health Cooperative-SCW and Security Health Plan list Donald Fischer as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Donald Fischer was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.