Dr William L Guy, PHD, MD - Medicare Psychiatry in Southfield, MI

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Dr William L Guy, PHD, MD is a medicare enrolled "Psychiatry & Neurology - Psychiatry" physician in Southfield, Michigan. He went to University Of Michigan Medical School and graduated in 1994 and has 31 years of diverse experience with area of expertise as Psychiatry. He is a member of the group practice Optum Behavioral Care Of Colorado, P.c. and his current practice location is 22170 W 9 Mile Rd, Southfield, Michigan. You can reach out to his office (for appointments etc.) via phone at (313) 319-8429.

Dr William L Guy is licensed to practice in Michigan (license number 4301063551) and he also participates in the medicare program. He accepts medicare assignments (which means he accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance) and his NPI Number is 1295748101.

Contact Information

Dr William L Guy, PHD, MD
22170 W 9 Mile Rd,
Southfield, MI 48034-6007
(313) 319-8429
Not Available

Map and Direction




Physician's Profile

Full NameDr William L Guy
GenderMale
SpecialityPsychiatry
Experience31 Years
Location22170 W 9 Mile Rd, Southfield, Michigan
Accepts Medicare AssignmentsYes. He accepts the Medicare-approved amount; you will not be billed for any more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • Dr William L Guy attended and graduated from University Of Michigan Medical School in 1994
  NPI Data:
  • NPI Number: 1295748101
  • Provider Enumeration Date: 08/14/2006
  • Last Update Date: 09/10/2007
  Medicare PECOS Information:
  • PECOS PAC ID: 3870581861
  • Enrollment ID: I20040506000688

Medical Identifiers

Medical identifiers for Dr William L Guy such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1295748101NPI-NPPES
2606324352OtherMIBLUE CROSS BLUE SHIELD MI
2608270052OtherMIBLUE CROSS/BLUE SHEILDMI
P00140666OtherMIRAILROAD MEDICARE

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2084P0800XPsychiatry & Neurology - Psychiatry 4301063551 (Michigan)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Optum Behavioral Care Of Colorado, P.c.0941648463150

Medicare Reassignments

Some practitioners may not bill the customers directly but medicare billing happens through clinics / group practice / hospitals where the provider works. Medicare reassignment of benefits is a mechanism by which practitioners allow third parties to bill and receive payment for medicare services performed by them. Dr William L Guy allows following entities to bill medicare on his behalf.
Entity NameHeron Ridge Associates Plc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1013187541
PECOS PAC ID: 2961303573
Enrollment ID: O20040116000532
Entity NameRobert Garcia Md Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1760659312
PECOS PAC ID: 8628063757
Enrollment ID: O20040419000412
Entity NameOakland Psychological Clinic Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1538356282
PECOS PAC ID: 2163315086
Enrollment ID: O20040507000830
Entity NamePerspectives Of Troy Pc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1033227269
PECOS PAC ID: 7113993700
Enrollment ID: O20041027000491
Entity NameEasterseals Morc Health Care, Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1376526616
PECOS PAC ID: 9830141670
Enrollment ID: O20050221000100
Entity NameAbh Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1487828281
PECOS PAC ID: 6406928332
Enrollment ID: O20080709000286
Entity NamePastoral Counseling And Consultation Service
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1124146451
PECOS PAC ID: 4789877978
Enrollment ID: O20101020000754
Entity NameHope Counseling Centers Llc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1730833138
PECOS PAC ID: 7214311703
Enrollment ID: O20220901000973
Entity NameOptum Behavioral Care Of Colorado, P.c.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1679343008
PECOS PAC ID: 0941648463
Enrollment ID: O20240403001893
Entity NameOptum Behavioral Care Of Colorado, P.c.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1306616735
PECOS PAC ID: 0941648463
Enrollment ID: O20240412001576
Entity NameOptum Behavioral Care Of Colorado, P.c.
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1851161285
PECOS PAC ID: 0941648463
Enrollment ID: O20240423001699

Medicare Part D Prescriber Enrollment

Any physician or other eligible professional who prescribes Part D drugs must either enroll in the Medicare program or opt out in order to prescribe drugs to their patients with Part D prescription drug benefit plans. Dr William L Guy is enrolled with medicare and thus, if eligible, can prescribe medicare part D drugs to patients with medicare part D benefits.

Mailing Address and Practice Location

Mailing AddressPractice Location Address
Dr William L Guy, PHD, MD
16 Riverbank Dr,
Beverly Hills, MI 48025-4808

Ph: (313) 319-8429		Dr William L Guy, PHD, MD
22170 W 9 Mile Rd,
Southfield, MI 48034-6007

Ph: (313) 319-8429

Reviews and Comments


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Dr. Farhad Ali Amiri, DO
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Practice Location: 18000 W 9 Mile Rd Ste 750, Southfield, MI 48075
Phone: 248-607-7190    Fax: 248-607-7191

Medicare Program: Medicare is a federal government program which provides health insurance to people who are 65 or older. This program also covers certain younger people with disabilities (who receive Social Security Disability Insurance - SSDI), and people with End-Stage Renal Disease (permanent kidney failure requiring dialysis or a transplant, sometimes called ESRD.

Medicare Assignment: Assignment means that your doctor, provider, or supplier agrees (or is required by law) to accept the Medicare-approved amount as full payment for covered services. Most doctors, providers, and suppliers accept assignment, but you should always check to make sure. Participating providers have signed an agreement to accept assignment for all Medicare-covered services.

NPI Number: The National Provider Identifier (NPI) is a unique identification number for covered health care providers. The NPI must be used in lieu of legacy provider identifiers in the HIPAA standards transactions. Covered health care providers and all health plans and health care clearinghouses must use the NPIs in the administrative and financial transactions adopted under HIPAA (Health Insurance Portability and Accountability Act).

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