Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. WILLIAM ROSS BIRKHILL PH.D.
NPI 1740229772
Psychologist in Farmington Hills, MI

Active since June 05, 2006
33045 HAMILTON CT, SUITE W-300, FARMINGTON HILLS, MI 48334(248) 848-1558(248) 848-3592 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Jul 13, 2026, Sep 11, 2025 (2 updates tracked since 2025).

About Dr. William Ross Birkhill Ph.d. NPPES

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

DR. WILLIAM ROSS BIRKHILL PH.D. (NPI 1740229772) is an individual psychologist in Farmington Hills, Michigan, licensed in Michigan (002936) and active in the NPI registry since June 2006.

NPPES Registry Identity

NPI1740229772
Entity TypeIndividualMale
Primary Taxonomy103T00000X
Provider Legal NameDR. WILLIAM ROSS BIRKHILLCredential: PH.D.
Location Address33045 HAMILTON CT, SUITE W-300Farmington Hills, MI 48334-3385
Mailing Address33045 Hamilton Ct, Suite W-300Farmington Hills, MI 48334-3385 · (248) 848-1558 · Fax (248) 848-3592
Fax(248) 848-3592
Sole ProprietorNo
Enumeration DateJune 5, 2006
Last NPPES UpdateJuly 13, 20262 updates tracked since enumeration
NPI 1740229772 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyPsychologistBehavioral Health & Social Service Providers
Taxonomy Code103T00000X
License Licensed in MI · 002936
Definition
A psychologist is an individual who is licensed to practice psychology which is defined as the observation, description, evaluation, interpretation, and modification of human behavior by the application of psychological principles, methods, and procedures, for the purpose of preventing or eliminating symptomatic, maladaptive, or undesired behavior and of enhancing interpersonal relationships, work and life adjustment, personal effectiveness, behavioral health, and mental health. The practice of psychology includes, but is not limited to, psychological testing and the evaluation or assessment of personal characteristics, such as intelligence, personality, abilities, interests, aptitudes, and neuropsychological functioning; counseling, psychoanalysis, psychotherapy, hypnosis, biofeedback, and behavior analysis and therapy; diagnosis and treatment of mental and emotional disorder or disability, alcoholism and substance abuse, disorders of habit or conduct, as well as of the psychological aspects of physical illness, accident, injury, or disability; and psycheducational evaluation, therapy, remediation, and consultation. Psychological services may be rendered to individuals, families, groups and the public.
Also ListedPsychologist · ClinicalTaxonomy 103TC0700X · License 002936 (MI)
33045 HAMILTON CT, Farmington Hills, MI 48334

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.

Counselor (Mental Health)
33045 HAMILTON CT, SUITE W-300
FARMINGTON HILLS, MI 48334
Social Worker (Clinical)
33045 HAMILTON CT, SUITE W-300
FARMINGTON HILLS, MI 48334
Social Worker (Clinical)
33045 HAMILTON CT, SUITE W-300
FARMINGTON HILLS, MI 48334
Psychologist (Clinical)
33045 HAMILTON CT, SUITE W-300
FARMINGTON HILLS, MI 48334
Psychologist
33045 HAMILTON CT, SUITE W-300
FARMINGTON HILLS, MI 48334
Psychologist
33045 HAMILTON CT, SUITE W-300
FARMINGTON HILLS, MI 48334
Social Worker (Clinical)
33045 HAMILTON CT, SUITE W-300
FARMINGTON HILLS, MI 48334
Home Health
33045 HAMILTON CT, STE 208E
FARMINGTON HILLS, MI 48334

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 William Birkhill's NPI number?

The NPI number for William Birkhill is 1740229772. It was assigned to this individual provider in the NPPES registry on June 5, 2006.

Where is William Birkhill located?

William Birkhill practices at 33045 Hamilton Ct Suite W-300, Farmington Hills, MI 48334. The listed phone number is (248) 848-1558.

What is William Birkhill's specialty?

The primary specialty registered for this NPI is Psychologist with taxonomy code 103T00000X.

When was this NPI record last updated?

The NPPES record for William Birkhill 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 35 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.