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DR. EUNICE CHAN D.O.
NPI 1770847766
Family Medicine in Oak Park, IL

Active since June 25, 2012PECOS Enrolled
1010 LAKE ST, SUITE 500, OAK PARK, IL 60301(708) 524-8600(708) 524-8147 Get Directions Write a Review

NPPES record last updated: February 18, 2016. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Feb 18, 2016, Dec 1, 2015 (2 updates tracked since 2015).

About Dr. Eunice Chan D.o. NPPES

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

DR. EUNICE CHAN D.O. (NPI 1770847766) is an individual family medicine provider in Oak Park, Illinois, licensed in Illinois (036-137660) and active in the NPI registry since June 2012. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1770847766
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameDR. EUNICE CHANCredential: D.O.
Location Address1010 LAKE ST, SUITE 500Oak Park, IL 60301-1147
Mailing Address1010 Lake St, Suite 500Oak Park, IL 60301-1147 · (708) 524-8600 · Fax (708) 524-8147
Phone(708) 524-8600
Fax(708) 524-8147
Sole ProprietorNo
Enumeration DateJune 25, 2012
Last NPPES UpdateFebruary 18, 20162 updates tracked since enumeration
✔ NPI 1770847766 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in IL · 036-137660
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
1010 LAKE ST, Oak Park, IL 60301
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Other Identifiers 2

Medicaid036137660IL
Medicare PINF400225750

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Oscar Health.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Eunice Chan D.o. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Medicare Billing Reassignment

Medicare enrollment records show Eunice Chan reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Lake Street Family Physicians Sc Inc
Same address
Family Medicine
1010 W LAKE ST, SUITE 500
Oak Park, IL 60301
  • Reassigned Medicare billing, Illinois enrollment
  • 10 clinicians in this Medicare group
NPI 1841363850 (708) 524-8600

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 60301 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
$94.06 typical visit price
range $60.08 – $183.39
Typical copayment $23.51 (range $15.02 – $45.84)
Most-billed visit code 99203
Established Patient
$105.70 typical visit price
range $18.97 – $148.12
Typical copayment $26.42 (range $4.74 – $37.03)
Most-billed visit code 99214
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 20

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

DR. DAVID ANTHONY BARTHWELL M.D.
Psychiatry & Neurology (Psychiatry)
1010 LAKE ST, SUITE 422
OAK PARK, IL 60301
Cook County (708) 383-2700
DR. JEANANE MARIE FERRE PHD
Audiologist
1010 LAKE ST, SUITE 621
OAK PARK, IL 60301
Cook County (708) 848-4363
OAK PARK WOMENS HEALTH
Obstetrics & Gynecology (Gynecology)
1010 LAKE ST
OAK PARK, IL 60301
Cook County (708) 434-4075
TERRI FRY BRUKHARTZ LCSW
Social Worker (Clinical)
1010 LAKE ST, STE. 616
OAK PARK, IL 60301
Cook County (708) 386-0500
LAND OF LINCOLN HEARING, INC.
Hearing Instrument Specialist
1010 LAKE ST, SUITE 200
OAK PARK, IL 60301
Cook County (630) 346-1355
BARBARA WYNN COUGHLIN LCSW, CADC
Social Worker (Clinical)
1010 LAKE ST, STE 603A
OAK PARK, IL 60301
Cook County (224) 532-6814
BERTHA DAVIS LCSW
Social Worker (Clinical)
1010 LAKE ST
OAK PARK, IL 60301
Cook County (708) 970-7512
DR. MARGARET A TORMAY
Psychiatry & Neurology (Psychiatry)
1010 LAKE ST, SUITE 501-A
OAK PARK, IL 60301
Cook County (708) 383-6607

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 Eunice Chan's NPI number?

The NPI number for Eunice Chan is 1770847766. It was assigned to this individual provider in the NPPES registry on June 25, 2012.

Where is Eunice Chan located?

Eunice Chan practices at 1010 Lake St Suite 500, Oak Park, IL 60301. The listed phone number is (708) 524-8600.

What is Eunice Chan's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Eunice Chan enrolled in Medicare?

Yes. Eunice Chan is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Eunice Chan's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Eunice Chan reassigns Medicare benefits to Lake Street Family Physicians Sc Inc (Oak Park, IL). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Eunice Chan's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Eunice Chan accept?

Health plans from Oscar Health list Eunice Chan as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Eunice Chan was last updated on February 18, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 10 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.