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DR. MARY A DEAN ONAYEMI MD
NPI 1770518169
Obstetrics & Gynecology in Chicago, IL

Active since July 12, 2006PECOS EnrolledAccepts Medicare Assignment
1701 W MONTEREY AVE, SUITE 11, CHICAGO, IL 60643(773) 238-2282(773) 238-5746 Get Directions Write a Review

NPPES record last updated: August 9, 2022. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Mary A Dean Onayemi Md NPPES

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

DR. MARY A DEAN ONAYEMI MD (NPI 1770518169) is an individual obstetrics & gynecology provider in Chicago, Illinois, licensed in Illinois (036065557) and active in the NPI registry since July 2006. She is enrolled in Medicare PECOS, maintains a secondary practice location in Chicago, and is a graduate of University Of Illinois College Of Med (chi/peor/rock/chm-urb) (1980).

NPPES Registry Identity

NPI1770518169
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameDR. MARY A DEAN ONAYEMICredential: MD
Location Address1701 W MONTEREY AVE, SUITE 11Chicago, IL 60643-4257
Mailing Address1701 W Monterey Ave, Suite 11Chicago, IL 60643-4257 · (773) 238-2282 · Fax (773) 238-5746
Phone(773) 238-2282
Fax(773) 238-5746
Sole ProprietorYes
Medical School CMSUniversity Of Illinois College Of Med (chi/peor/rock/chm-urb)Graduated 1980
Enumeration DateJuly 12, 2006
Last NPPES UpdateAugust 9, 2022
NPPES CertifiedAugust 9, 2022
✔ NPI 1770518169 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians
Taxonomy Code207V00000X
License✔ Licensed in IL · 036065557
Definition
An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.
1701 W MONTEREY AVE, Chicago, IL 60643
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Secondary Practice Location 1

Location 12320 E 93rd StChicago, IL 60617-3909 · Phone (773) 967-3272

Other Identifiers 1

Other036065557IL · State License

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Mary A Dean Onayemi Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7719900141
PECOS Enrollment IDI20060111000569
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60643 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$138.86 typical visit price
range $60.08 – $183.39
Typical copayment $34.71 (range $15.02 – $45.84)
Most-billed visit code 99204
Established Patient
$74.80 typical visit price
range $18.97 – $148.12
Typical copayment $18.70 (range $4.74 – $37.03)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 17

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

VANESSA HOWARD FNP-BC
Nurse Practitioner (Family)
1701 W MONTEREY AVE, SUITE 4
CHICAGO, IL 60643
Cook County (773) 298-9800
DR. GREGORY BRIAN WINSTEAD MD, MPH
Family Medicine
1701 W MONTEREY AVE
CHICAGO, IL 60643
Cook County (773) 233-5850
JOHNSON HEALTHCARE PROVIDERS LTD
Internal Medicine
1701 W MONTEREY AVE
CHICAGO, IL 60643
Cook County (773) 233-5800
DR. JOHN BLAIR MATTES DDS
Dentist (General Practice)
1701 W MONTEREY AVE
CHICAGO, IL 60643
Cook County (773) 445-9880
VALERIE C WALKER M.D.
Internal Medicine
1701 W MONTEREY AVE, SUITE 1
CHICAGO, IL 60643
Cook County (773) 233-5850
WILLIAM A JOHNSON MD
Internal Medicine
1701 W MONTEREY AVE, SUITE 1
CHICAGO, IL 60643
Cook County (773) 233-5850
CHRISTIAN COMMUNITY HEALTH CENTER
Clinic/Center (Community Health)
1701 W MONTEREY AVE
CHICAGO, IL 60643
Cook County (773) 233-5850
DIVINE INTERVENTIONS AN HKN LLC
Radiology (Vascular & Interventional Radiology)
1701 W MONTEREY AVE
CHICAGO, IL 60643
Cook County (708) 576-9542

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 Mary Dean Onayemi's NPI number?

The NPI number for Mary Dean Onayemi is 1770518169. It was assigned to this individual provider in the NPPES registry on July 12, 2006.

Where is Mary Dean Onayemi located?

Mary Dean Onayemi practices at 1701 W Monterey Ave Suite 11, Chicago, IL 60643. The listed phone number is (773) 238-2282.

What is Mary Dean Onayemi's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Mary Dean Onayemi enrolled in Medicare?

Yes. Mary Dean Onayemi is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Mary Dean Onayemi was last updated on August 9, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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.