Tony Chen, MD
Ophthalmology Physician · Chicago, IL
Tony Chen, MD is an ophthalmology physician with a practice address in Chicago, Illinois, and NPI 1841720729, issued on Jun 14, 2017. Check the license (Illinois 036-155742, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Tony Chen
- Credential
- MD
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- License numbers
- 036-155742 IL
U0320 TX
Self-reported in NPPES; status is on the state search - Practice location
- 645 N Michigan Ave Ste 440, Chicago, IL 60611
- Phone
- (312) 503-3649
- Enumerated
- Jun 14, 2017
- Entity
- Type 1 · individual
Also registered at 645 N Michigan Ave Ste 440
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Allen Ganjei, MDOphthalmology Physician1689324782
- Dilraj Grewal, MDOphthalmology Physician1437460656
- Hong-Gam Le, M.D.Ophthalmology Physician1831552272
- Jeffrey Liu, MDOphthalmology Physician1851479422
- Camille Palma, M.D.Ophthalmology Physician1154656577
Verify Tony Chen 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 036-155742Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
83% fewer Medicare Part D claims than the average ophthalmology physician in 2024
260 Medicare Part D claims for 96 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 29% of claims.
Most prescribed
- Ketorolac Tromethamine49 claims
- Tobramycin-Dexamethasone48 claims
- Dorzolamide-Timolol41 claims
- Prednisolone Acetate33 claims
- Difluprednate27 claims
- Latanoprost11 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: $16.05
1 payment: food and beverage; the largest payer was Teva Pharmaceuticals USA, Inc. The 13,221 providers of this specialty with any payment received $4,535.02 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.
Bills Medicare through one group practice
- Kelsey-Seybold Medical Group, PLLCHouston, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ophthalmology Physician providers in Illinois
There are 898 ophthalmology physician records in Illinois.
Other ophthalmology physician records in Illinois
- Walid Abdallah, MDRockford, IL1871912717
- Robert Abishek, MDChicago, IL1760314678
- Ashley Abraham, M.D.Springfield, IL1285900423
- Evelyn Ackermann, MDElgin, IL1053308676
- Kathleen Ackman Blake, MDHinsdale, IL1497734966
- Kaela Acuff, MDChicago, IL1609678549
- Nolan AdamsMaywood, IL1124581780
- Mohamed Adenwalla, M.D.Elmhurst, IL1184679524
- Roger Adler, MDPekin, IL1063465110
- Armin Afshar, M.D.Chicago, IL1063742161
Common questions
What is Tony Chen, MD's NPI number?
Tony Chen, MD's National Provider Identifier (NPI) is 1841720729, issued on Jun 14, 2017. An NPI identifies a provider in billing; it is not a license.
Where is Tony Chen, MD located?
The NPPES record lists a practice address at 645 N Michigan Ave Ste 440, Chicago, IL, 60611. Phone: (312) 503-3649. Providers update this record themselves, so call before visiting.
How can I verify Tony Chen, MD's license?
NPPES lists Illinois license number 036-155742, 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 Tony Chen, MD prescribe under Medicare Part D?
In 2024, Tony Chen, MD had 260 Medicare Part D claims for 96 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 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 27, 2026.