Dr Mary A Dean Onayemi, MD - Medicare Obstetrics & Gynecology in Chicago, IL

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Dr Mary A Dean Onayemi, MD is a medicare enrolled "Obstetrics & Gynecology" physician in Chicago, Illinois. Her current practice location is 1701 W Monterey Ave, Suite 11, Chicago, Illinois. You can reach out to her office (for appointments etc.) via phone at (773) 238-2282.

Dr Mary A Dean Onayemi is licensed to practice in Illinois (license number 036065557) and she also participates in the medicare program. She does not accept medicare assignments directly but she may accept medicare through third-party (refer to Reassignment section below) and may also prescribe medicare part D drugs. Her NPI Number is 1770518169.

Contact Information

Dr Mary A Dean Onayemi, MD
1701 W Monterey Ave, Suite 11,
Chicago, IL 60643-4257
(773) 238-2282
(773) 238-5746

Map and Direction




Physician's Profile

Full NameDr Mary A Dean Onayemi
GenderFemale
SpecialityObstetrics & Gynecology
Location1701 W Monterey Ave, Chicago, Illinois
Accepts Medicare AssignmentsMedicare enrolled and may accept medicare through third-party reassignment. May prescribe medicare part D drugs.
  NPI Data:
  • NPI Number: 1770518169
  • Provider Enumeration Date: 07/12/2006
  • Last Update Date: 08/09/2022
  Medicare PECOS Information:
  • PECOS PAC ID: 7719900141
  • Enrollment ID: I20060111000569

Medical Identifiers

Medical identifiers for Dr Mary A Dean Onayemi such as npi, medicare ID, medicare PIN, medicaid, etc.
IdentifierTypeStateIssuer
1770518169NPI-NPPES
036065557OtherILSTATE LICENSE

Medical Taxonomies and Licenses

TaxonomyTypeLicense (State)Status
207V00000XObstetrics & Gynecology 036065557 (Illinois)Primary

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 Mary A Dean Onayemi allows following entities to bill medicare on her behalf.
Entity NameAdvocate Health And Hospitals Corporation
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1700824455
PECOS PAC ID: 7810800935
Enrollment ID: O20031106000064
Entity NameChicago Family Health Center Inc
Entity TypePart B Supplier - Clinic/group Practice
Entity IdentifiersNPI Number: 1245266337
PECOS PAC ID: 6608765417
Enrollment ID: O20040311000364

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 Mary A Dean Onayemi 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 Mary A Dean Onayemi, MD
1701 W Monterey Ave, Suite 11,
Chicago, IL 60643-4257

Ph: (773) 238-2282		Dr Mary A Dean Onayemi, MD
1701 W Monterey Ave, Suite 11,
Chicago, IL 60643-4257

Ph: (773) 238-2282

Reviews and Comments


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Mr. Clyde Harris Lawson, MD
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Phone: 773-874-1400    Fax: 773-874-9245

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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