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HEATHER A O'MAHEN WILLIS PHD
NPI 1063520708
Counselor - Mental Health in Ann Arbor, MI

Active since August 25, 2006
5331 PLYMOUTH RD, ANN ARBOR, MI 48105(734) 996-9111(734) 996-1950 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: July 19, 2026.

About Heather A O'mahen Willis Phd NPPES

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

HEATHER A O'MAHEN WILLIS PHD (NPI 1063520708) is an individual mental health provider in Ann Arbor, Michigan, licensed in Michigan (6301012336) and active in the NPI registry since August 2006.

NPPES Registry Identity

NPI1063520708
Entity TypeIndividualFemale
Primary Taxonomy101YM0800X
Provider Legal NameHEATHER A O'MAHEN WILLISCredential: PHD
Location Address5331 PLYMOUTH RDAnn Arbor, MI 48105-9520
Mailing Address5331 Plymouth RdAnn Arbor, MI 48105-9520 · (734) 996-9111 · Fax (734) 996-1950
Phone(734) 996-9111
Fax(734) 996-1950
Sole ProprietorYes
Enumeration DateAugust 25, 2006
Last NPPES UpdateJuly 8, 2007
✔ NPI 1063520708 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers
Taxonomy Code101YM0800X
License✔ Licensed in MI · 6301012336
5331 PLYMOUTH RD, Ann Arbor, MI 48105
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Other Names 1

Professional Name (2)Heather A O'mahen Phd

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.

AACS, INC.
Counselor (Mental Health)
5331 PLYMOUTH RD
ANN ARBOR, MI 48105
Washtenaw County (734) 996-9111
MARGARET J CRESSMAN MSW
Counselor (Mental Health)
5331 PLYMOUTH RD
ANN ARBOR, MI 48105
Washtenaw County (734) 996-9111
JULIUS R BALLEW MSW
Counselor (Mental Health)
5331 PLYMOUTH RD
ANN ARBOR, MI 48105
Washtenaw County (734) 996-9111
RICHARD A BARBER MSW
Counselor (Mental Health)
5331 PLYMOUTH RD
ANN ARBOR, MI 48105
Washtenaw County (734) 996-9111
MARGUERITE SARAH BALLEW MSW
Counselor (Mental Health)
5331 PLYMOUTH RD
ANN ARBOR, MI 48105
Washtenaw County (734) 996-9111
BARRY JOEL BREAKEY MSW
Counselor (Mental Health)
5331 PLYMOUTH RD
ANN ARBOR, MI 48105
Washtenaw County (734) 996-9111
SUSAN K GIBNEY LLP
Counselor (Mental Health)
5331 PLYMOUTH RD
ANN ARBOR, MI 48105
Washtenaw County (734) 996-9111
SIDNEY E GREENBERG MSW
Counselor (Mental Health)
5331 PLYMOUTH RD
ANN ARBOR, MI 48105
Washtenaw County (734) 996-9111

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 Heather O'mahen Willis's NPI number?

The NPI number for Heather O'mahen Willis is 1063520708. It was assigned to this individual provider in the NPPES registry on August 25, 2006. The provider is also known as Heather A O'mahen Phd.

Where is Heather O'mahen Willis located?

Heather O'mahen Willis practices at 5331 Plymouth Rd, Ann Arbor, MI 48105. The listed phone number is (734) 996-9111.

What is Heather O'mahen Willis's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

When was this NPI record last updated?

The NPPES record for Heather O'mahen Willis was last updated on July 8, 2007. NPI Profile syncs with the weekly NPPES data releases published by CMS.