DR. EUNICE CHAN (D.O.) – Family Medicine Physician, NPI 1770847766

DR. EUNICE CHAN (D.O.) is a healthcare provider. based in Oak park, Illinois. specializing in Family Medicine Physician. They hold the professional credentials D.O.. They hold a License No. 036-137660 (IL). The NPI Number for DR. EUNICE CHAN (D.O.) is 1770847766

Main info

Female
14 Years Of Experience
Accepts Medicare Assignment
Name
DR. EUNICE CHAN (D.O.)
NPI
1770847766
Phone
(708) 524-8600
Address
1010 LAKE ST
Enumeration Date
25 June 2012
Last Update Date
18 February 2016

Doctor Profile

Medical School Name
ARIZONA COLLEGE OF OSTEOPATHIC MEDICINE MID WESTERN UNIVERSITY
Secondary Phone
7085248600
Graduation Year
2012 (14 years ago)
PAC ID
0446483374
Group Practice PAC ID
8123081189
Professional Enrollment ID
I20150709002210
Data current as of
20 May 2026

Profile Insights

NPPES metrics only — not quality of care.

Methodology
Experience40
Completeness75
Years active:13State licenses:1Digital endpointsOther names

Provider Addresses for DR. EUNICE CHAN (D.O.)

  • 1010 LAKE ST

    SUITE 500

    OAK PARK, IL 603011147

    Phone: (708) 524-8600

    Fax: (708) 524-8147

    Mailing address matches the actual address.

NPPES updates history

No NPPES updates recorded for this provider.

Prescription Activity

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Open Payments (CMS)

CMS reports 1 Open Payments records for all available years, with a total value of $20.

Total Amount is formed as General ($20) + Research ($0) + Ownership ($0) = $20.

Last reported payment date: 2024-10-03 • Largest payer in this snapshot: GlaxoSmithKline, LLC. ($20).

Total Amount

$20

General + Research + Ownership

Payments

1

Total payment records

General Amount

$20

General payments

Research Amount

$0

Research funding

Ownership Amount

$0

Ownership interests

Ownership Count

0

Ownership records

Last Payment Date

2024-10-03

Latest reported date

Top Companies

Largest payers in this snapshot

CompanyAmount
GlaxoSmithKline, LLC.$20
View all Open Payments →|Open Payments Risk Radar →

Medicare Enrollment & Revalidation

Source: CMS public data · Not endorsed by CMS ·

Educational use only—not medical, billing, or legal advice.

PECOS enrollment status

Participating (accepts Medicare assignment)

Enrollment effective: 2023-11-08

PECOS data refreshed: 2026-05-27

Medicare revalidation (CMS due date list)

Due date not assigned yet

CMS is tracking 3 Medicare enrollment records; no due dates published yet.

Enrollment records

3

Earliest due date

Not assigned (TBD)

CMS data updated

2026-06-01

Revalidation progress

  1. Medicare enrolled
  2. On CMS revalidation list
  3. Due date assigned
  4. Revalidate in PECOS

CMS enrollment records

Enrollment IDTypeSpecialtyStateDue date
I20150709002210IFamily PracticeILTBD
I20231019003224IFamily PracticeFLTBD
I20231108000409IFamily PracticeWITBD

What to do next

  • No action required while the due date shows TBD.
  • Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
  • Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.

Verify on CMS Revalidation Lookup Tool

Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS

Medicare Utilization (FFS)

Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·

Educational use only—not medical, billing, or legal advice.

Top Medicare procedures (2023) · refreshed 2026-05-27

HCPCSDescriptionServicesBeneficiariesMedicare allowed
99214Established patient office or other outpatient visit, 30-39 minutes3521$0
99213Established patient office or other outpatient visit, 20-29 minutes1716$0
G0444Annual depression screening, 5 to 15 minutes1111$0
View full utilization report →

Insurance plans in this area (ZIP 60301)

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Provider's Procedures

DR. EUNICE CHAN (D.O.) performs procedures in Family Medicine Physician. See the list of HCPCS codes below.
SpecialtyPractice State
HCPCS Code
Description
Service Count
Beneficiary Count
FAMILY MEDICINEIL81002Urinalysis, manual test1413

Group practice members

Group practice members are other physicians who share the same Group Practice PAC ID with this doctor. When doctors form a group practice and register in PECOS as a single entity, they receive a shared identification number. This table lists all providers in the same group practice.
PAC ID: 8123081189View full group profile
NameSpecialtyState
-IL
Internal Medicine, Pediatric MedicineIL
Physician AssistantIN
Physician AssistantIL
Family PracticeIL
Family PracticeIL
-IL

Reviews

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Frequently asked questions

What is DR. EUNICE CHAN (D.O.)'s NPI number?
DR. EUNICE CHAN (D.O.)'s NPI is 1770847766 — the number used across U.S. healthcare to identify this provider.
Is there an active status for DR. EUNICE CHAN (D.O.)?
For scheduling context, DR. EUNICE CHAN (D.O.) is shown as active in the registry.
What expertise is attributed to DR. EUNICE CHAN (D.O.)?
DR. EUNICE CHAN (D.O.)'s specialty line reads Family Medicine Physician. Clinical services aligned with this taxonomy classification.
Is DR. EUNICE CHAN (D.O.) located near Oak Park?
DR. EUNICE CHAN (D.O.) currently maps to Oak Park, Illinois in this extract.
What does 2 location(s) imply?
2 practice locations appear in the available data.

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