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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.

AUSTIN DONALD CARL KAYSER MD
NPI 1265173538
Psychiatry & Neurology - Psychiatry in Mequon, WI

Active since April 02, 2022PECOS Enrolled
1045 W GLEN OAKS LN STE 1, MEQUON, WI 53092(262) 241-8100(262) 241-8200 Get Directions Write a Review

NPPES record last updated: July 19, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

Record update history: Jul 19, 2026, Jul 1, 2025 (2 updates tracked since 2025).

About Austin Donald Carl Kayser Md NPPES

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

AUSTIN DONALD CARL KAYSER MD (NPI 1265173538) is an individual psychiatry provider in Mequon, Wisconsin, licensed in Wisconsin (82492) and active in the NPI registry since April 2022. He is enrolled in Medicare PECOS, maintains a secondary practice location in Mequon, and is a graduate of Other (2022).

NPPES Registry Identity

NPI1265173538
Entity TypeIndividualMale
Primary Taxonomy2084P0800X
Provider Legal NameAUSTIN DONALD CARL KAYSERCredential: MD
Location Address1045 W GLEN OAKS LN STE 1Mequon, WI 53092-3477
Mailing Address1045 W Glen Oaks Ln Ste 1Mequon, WI 53092-3477 · (262) 241-8100 · Fax (262) 241-8200
Phone(262) 241-8100
Fax(262) 241-8200
Sole ProprietorNo
Medical School CMSOtherGraduated 2022
Enumeration DateApril 2, 2022
Last NPPES UpdateJuly 19, 20262 updates tracked since enumeration
NPPES CertifiedJuly 19, 2026
✔ NPI 1265173538 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyPsychiatry & Neurology · PsychiatryAllopathic & Osteopathic Physicians
Taxonomy Code2084P0800X
License✔ Licensed in WI · 82492
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.
Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X · License 82492-20 (WI)
1045 W GLEN OAKS LN STE 1, Mequon, WI 53092
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Secondary Practice Location 1

Location 11045 W Glen Oaks Ln Ste 1Mequon, WI 53092-3477 · Phone (262) 241-8100 · Fax (262) 241-8200

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Austin Donald Carl Kayser Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID345626099
PECOS Enrollment IDI20260611003244
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 53092 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$163.24 typical visit price
range $53.90 – $163.24
Typical copayment $40.81 (range $13.47 – $40.81)
Most-billed visit code 99205
Established Patient
$67.37 typical visit price
range $17.40 – $133.76
Typical copayment $16.84 (range $4.35 – $33.44)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 4

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

JENNIFER REAGAN APNP, PMHNP, FNP
Nurse Practitioner (Family)
1045 W GLEN OAKS LN STE 1
MEQUON, WI 53092
Ozaukee County (262) 241-7778
MRS. JUDITH ANNE JENKINS L.C.S.W
Social Worker
1045 W GLEN OAKS LN STE 1
MEQUON, WI 53092
Ozaukee County (262) 241-7778
DIANE MATEL APNP, PHD
Nurse Practitioner (Psychiatric/Mental Health)
1045 W GLEN OAKS LN STE 1
MEQUON, WI 53092
Ozaukee County (262) 241-8100
DR. AMANDA VIOLA HARRIS PSY.D.
Psychologist
1045 W GLEN OAKS LN STE 1
MEQUON, WI 53092
Ozaukee County (262) 241-8100

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 Austin Kayser's NPI number?

The NPI number for Austin Kayser is 1265173538. It was assigned to this individual provider in the NPPES registry on April 2, 2022.

Where is Austin Kayser located?

Austin Kayser practices at 1045 W Glen Oaks Ln Ste 1, Mequon, WI 53092. The listed phone number is (262) 241-8100.

What is Austin Kayser's specialty?

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

Is Austin Kayser enrolled in Medicare?

Yes. Austin Kayser is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Austin Kayser was last updated on July 19, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.