William M Clark Jr, MD - Medicare Psychiatry in Chicago, IL

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William M Clark Jr, MD is a medicare enrolled "Psychiatry & Neurology - Psychiatry" physician in Chicago, Illinois. He went to University Of North Carolina At Chapel Hill School Of Medicine and graduated in 1986 and has 39 years of diverse experience with area of expertise as Psychiatry. He is a member of the group practice Psychiatric Associates Sc and his current practice location is 737 N Michigan Ave, Suite 1200, Chicago, Illinois. You can reach out to his office (for appointments etc.) via phone at (312) 373-7300.

William M Clark Jr is licensed to practice in Illinois (license number 336 040184) and he also participates in the medicare program. He may accept medicare assignments (which means he may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance) and his NPI Number is 1578574000.

Contact Information

William M Clark Jr, MD
737 N Michigan Ave, Suite 1200,
Chicago, IL 60611
(312) 373-7300
(312) 573-1249

Map and Direction




Physician's Profile

Full NameWilliam M Clark Jr
GenderMale
SpecialityPsychiatry
Experience39 Years
Location737 N Michigan Ave, Chicago, Illinois
Accepts Medicare AssignmentsMay be. He may accept the Medicare-approved amount; you may be billed for more than the Medicare deductible and coinsurance.
  Medical Education and Training:
  • William M Clark Jr attended and graduated from University Of North Carolina At Chapel Hill School Of Medicine in 1986
  NPI Data:
  • NPI Number: 1578574000
  • Provider Enumeration Date: 08/10/2006
  • Last Update Date: 07/13/2010
  Medicare PECOS Information:
  • PECOS PAC ID: 9032180732
  • Enrollment ID: I20101111000672

Medical Identifiers

Medical identifiers for William M Clark Jr such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1578574000NPI-NPPES
01615704OtherILBLUE CROSS
260041526OtherILRAILROAD
0360770MedicaidIL

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
2084P0800XPsychiatry & Neurology - Psychiatry 336 040184 (Illinois)Primary

Group Practice Association

Group Practice NameGroup PECOS PAC IDNo. of Members
Psychiatric Associates Sc30725846894

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. William M Clark Jr allows following entities to bill medicare on his behalf.
Entity NamePsychiatric Associates Sc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1013005826
PECOS PAC ID: 3072584689
Enrollment ID: O20040805000294

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. William M Clark Jr 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
William M Clark Jr, MD
737 N Michigan Ave, Suite 1200,
Chicago, IL 60611

Ph: (312) 373-7300		William M Clark Jr, MD
737 N Michigan Ave, Suite 1200,
Chicago, IL 60611

Ph: (312) 373-7300

Reviews and Comments


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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.

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