Harold Michael Sy, MD
Cornea and External Diseases Specialist Physician · Chicago, IL
Harold Michael Sy, MD is a cornea and external diseases specialist physician with a practice address in Chicago, Illinois, and NPI 1992730030, issued on Jul 11, 2006. Check the license (Illinois 036113980, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Harold Michael Sy
- Credential
- MD
- Primary taxonomy
- Cornea and External Diseases Specialist Physician 207WX0120X
- License number
- 036113980 IL
Self-reported in NPPES; status is on the state search - Practice location
- 5086 N Elston Ave, Chicago, IL 60630
- Phone
- (773) 282-2000
- Enumerated
- Jul 11, 2006
- Record last updated
- Aug 6, 2024
- Medicaid ID
- 936953955A GA
- Medicare enrollment
- Enrolled (PECOS I20070730000714); accepts Medicare assignment
- Medical or professional school
- Rush Medical College Of Rush University, 2002
- Entity
- Type 1 · individual
8 nearest cornea and external diseases specialist physician records → All 20 in Illinois → Look up another NPI →
Also registered at 5086 N Elston Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Morgan FrechieOphthalmology Physician1477044428
- Michelle Khan, PA-CPhysician Assistant1093984056
- Edward Lichtenberg, MDGynecology Physician1427132950
- Saagar Pandit, MDRetina Specialist (Ophthalmology) Physician1598253437
- Ruby Yamamoto, PA-CMedical Physician Assistant1154654952
Verify Harold Michael Sy 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 036113980Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
62% more Medicare Part D claims than the average cornea and external diseases specialist physician in 2024
2,044 Medicare Part D claims for 528 beneficiaries, against an average of 1,263 among the 330 providers of this specialty who prescribed in Part D. Brand-name drugs were 37% of claims.
Most prescribed
- Latanoprost607 claims
- Erythromycin210 claims
- Ketorolac Tromethamine207 claims
- Prednisolone Acetate200 claims
- Moxifloxacin127 claims
- Timolol Maleate113 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: $937.49
38 payments; by number, the most common kind was food and beverage; the largest payer was Glaukos Corporation. The 284 providers of this specialty with any payment received $3,109.37 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
- Ocular Partners PLLCChicago, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Harold Michael Sy among 20 cornea and external diseases specialist physician records in Illinois
Harold Michael Sy, MD is one of 20 cornea and external diseases specialist physician records with a practice address in Illinois. 95% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 5% of them.
- NPI issued2006 · 5% of these records are older, 85% newer
- In a Medicare fileYes · 95% of these records are
- In the CMS Doctors and Clinicians fileYes · 80% of these records are
- Graduated2002 · median 2013 among the 16 with a school on file
- Record last updated2024 · 35% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207WX0120X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Cornea and External Diseases Specialist Physician providers in Illinois
There are 20 cornea and external diseases specialist physician records in Illinois.
All 20 in Illinois → Every provider in Chicago → Cornea and External Diseases Specialist Physician nationwide →
The 8 cornea and external diseases specialist physician records with the nearest ZIP codes
- Avrey Thau, MDChicago, IL 606411164981916
- Farshad Abedi, MD, DMEDSCChicago, IL 606121992543722
- Jennifer ParkChicago, IL 606121568880318
- Raiza Perez, MDChicago, IL 606121790536886
- Arnaldo Roizenblatt, MDChicago, IL 606121609799790
- Hajirah Saeed, M.D.Chicago, IL 606121902197122
- Nahrain Schumaier, MDChicago, IL 606111871175828
- Andrea Arteaga, MDChicago, IL 606571154826584
Common questions
What is Harold Michael Sy, MD's NPI number?
Harold Michael Sy, MD's National Provider Identifier (NPI) is 1992730030, issued on Jul 11, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Harold Michael Sy, MD located?
The NPPES record lists a practice address at 5086 N Elston Ave, Chicago, IL, 60630. Phone: (773) 282-2000. Providers update this record themselves, so call before visiting.
How can I verify Harold Michael Sy, MD's license?
NPPES lists Illinois license number 036113980, 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 Harold Michael Sy, MD prescribe under Medicare Part D?
In 2024, Harold Michael Sy, MD had 2,044 Medicare Part D claims for 528 beneficiaries; the average among cornea and external diseases specialist physician prescribers was 1,263. 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.