Eunice Chan, D.O.
Family Medicine Physician · Oak Park, IL
Eunice Chan, D.O. is a family medicine physician with a practice address in Oak Park, Illinois, and NPI 1770847766, issued on Jun 25, 2012. Check the license (Illinois 036-137660, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Eunice Chan
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 036-137660 IL
Self-reported in NPPES; status is on the state search - Practice location
- 1010 Lake St, Oak Park, IL 60301
- Phone
- (708) 524-8600
- Enumerated
- Jun 25, 2012
- Record last updated
- Feb 18, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (708) 524-8147
- Medicaid ID
- 036137660 IL
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 6,215 in Illinois → Look up another NPI →
Also registered at 1010 Lake St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Christine Anderson, APNFamily Nurse Practitioner1336351758
- David Barthwell, M.D.Psychiatry Physician1043276785
- Patrick BradyMental Health Counselor1477360204
- Terri Brukhartz, LCSWClinical Social Worker1104081108
- Dawn Burns, LSW, MSWSocial Worker1336654169
- Anna CartyCounselor1669041950
Verify Eunice Chan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
Search for license 036-137660Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
97% fewer Medicare Part D claims than the average family medicine physician in 2024
109 Medicare Part D claims for 44 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D.
Most prescribed
- Hydrochlorothiazide13 claims
- Atorvastatin Calcium12 claims
- Simvastatin12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $20.44
1 payment: food and beverage; the largest payer was GlaxoSmithKline, LLC. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Eunice Chan among 6,215 family medicine physician records in Illinois
Eunice Chan, D.O. is one of 6,215 family medicine physician records with a practice address in Illinois. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2012, is newer than 61% of them.
- NPI issued2012 · 61% of these records are older, 36% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileNo · 60% of these records are
- Record last updated2016 · 54% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
86 family medicine physician records list a practice address in Oak Park
They are 86 of the 2,307 NPPES records with a practice address in Oak Park, and 6,215 family medicine physician records in Illinois.
All 6,215 in Illinois → Every provider in Oak Park → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Hung Duong, MDOak Park, IL 603011245257781
- Peter Grant, M.D.Oak Park, IL 603011306853858
- Nancy Gryniewicz, M.D.Oak Park, IL 603011558368043
- Stephen Humowiecki, MDOak Park, IL 603011477533560
- Mary Hutton, MDOak Park, IL 603011164415808
- Mary Kelly, D.O.Oak Park, IL 603011912087560
- Paul Kungl, MDOak Park, IL 603011831234749
- Michael Kyle, MDOak Park, IL 603011578556544
Common questions
What is Eunice Chan, D.O.'s NPI number?
Eunice Chan, D.O.'s National Provider Identifier (NPI) is 1770847766, issued on Jun 25, 2012. An NPI identifies a provider in billing; it is not a license.
Where is Eunice Chan, D.O. located?
The NPPES record lists a practice address at 1010 Lake St, Oak Park, IL, 60301. Phone: (708) 524-8600. Providers update this record themselves, so call before visiting.
How can I verify Eunice Chan, D.O.'s license?
NPPES lists Illinois license number 036-137660, as entered by the provider. Search the Illinois Department of Financial and Professional Regulation at https://idfpr.illinois.gov/checklicense.html. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Eunice Chan, D.O. prescribe under Medicare Part D?
In 2024, Eunice Chan, D.O. had 109 Medicare Part D claims for 44 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.