Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
NPIDirectory

Dr. William L. Guy, PHD, MD

Individual provider Psychiatry Physician · NPI 1295748101

Dr. William L. Guy, PHD, MD is a Psychiatry in Southfield, Michigan. Graduated from University of Michigan Medical School in 1994, 32 years ago. Practices with Optum Behavioral Care of Colorado PC, a 197-clinician group, accepts Medicare assignment and offers telehealth. Licensed in Michigan.

Years since qualifying
32
Trained at
University of Michigan Medical School
Licensed in
MI
In the registry since
2006
What do these letters mean?
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

22170 W 9 Mile Rd
Southfield, MI 48034-6007
Phone: (313) 319-8429
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Psychiatry Physician (primary) Taxonomy 2084P0800X · Licence 4301063551 (MI)

Record details

NPI number1295748101
Entity typeIndividual (Type 1)
GenderMale
Credentials PHD , MD
Sole proprietorNo
NPI enumeratedAugust 14, 2006
Last updated in NPPESSeptember 10, 2007
Mailing address16 Riverbank Dr, Beverly Hills, MI 48025-4808

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyPSYCHIATRY
Medical schoolUNIVERSITY OF MICHIGAN MEDICAL SCHOOL
Graduated 1994 (32 years in practice)
Group practice Optum Behavioral Care Of Colorado Pc — 197 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services
Practice locations3 on file with Medicare

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