Richard D. Zak, MD
Ophthalmology Physician · Aurora, IL
Richard D. Zak, MD is an ophthalmology physician with a practice address in Aurora, Illinois, and NPI 1467422451, issued on Jan 24, 2006. Check the license on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.
- Name
- Richard D. Zak
- Credential
- MD
- Primary taxonomy
- Ophthalmology Physician 207W00000X
- Practice location
- 1300 N Highland Ave, Aurora, IL 60506
- Phone
- (630) 897-5104
- Enumerated
- Jan 24, 2006
- Record last updated
- Feb 28, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (630) 897-5089
- Medicare enrollment
- Enrolled (PECOS I20050823001132); accepts Medicare assignment
- Medical or professional school
- University Of Illinois College Of Med (Chi/Peor/Rock/Chm-Urb), 1983
- Entity
- Type 1 · individual
8 nearest ophthalmology physician records → All 898 in Illinois → Look up another NPI →
Also registered at 1300 N Highland Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Robert Barnes, MDOphthalmology Physician1609840503
- Cristina Brotea, M.D.Family Medicine Physician1346364502
- Louis Camras, M.D.Pediatrics Physician1386618866
- Crispin Hao, M.D.Pediatrics Physician1689647349
- Tiffany Kozlick, FNP-BCNurse Practitioner1366075152
- John Lamiot, D.P.M.Foot & Ankle Surgery Podiatrist1871636670
Verify Richard D. Zak in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIllinois Department of Financial and Professional RegulationCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
89% fewer Medicare Part D claims than the average ophthalmology physician in 2024
169 Medicare Part D claims for 57 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 38% of claims.
Most prescribed
- Latanoprost26 claims
- Dorzolamide-Timolol25 claims
- Prednisolone Acetate22 claims
- Timolol Maleate20 claims
- Brimonidine Tartrate15 claims
- Dorzolamide Hcl11 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: $481.43
11 payments; by number, the most common kind was food and beverage; the largest payer was Regeneron Healthcare Solutions, 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
- Aurora Eye Clinic LtdAurora, IL
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Richard D. Zak among 898 ophthalmology physician records in Illinois
Richard D. Zak, MD is one of 898 ophthalmology physician records with a practice address in Illinois. 75% 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 16% of them.
- NPI issued2006 · 16% of these records are older, 44% newer
- In a Medicare fileYes · 75% of these records are
- In the CMS Doctors and Clinicians fileYes · 61% of these records are
- Graduated1983 · median 1999 among the 551 with a school on file
- Record last updated2008 · 60% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207W00000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Ophthalmology Physician providers in Illinois
There are 898 ophthalmology physician records in Illinois.
All 898 in Illinois → Every provider in Aurora → Ophthalmology Physician nationwide →
The 8 ophthalmology physician records with the nearest ZIP codes
- Robert Barnes, MDAurora, IL 605061609840503
- John Chu, MDAurora, IL 605061548285844
- Patrick Differding, MDAurora, IL 605061356871016
- Robert Foody, MDAurora, IL 605061780659912
- Tosca Kekish, MDAurora, IL 605061740214915
- Benjamin Mathew, MDAurora, IL 605061477781466
- William Park, M.D.Aurora, IL 605061942458237
- Lois Polatnick, MDAurora, IL 605061154356434
Common questions
What is Richard D. Zak, MD's NPI number?
Richard D. Zak, MD's National Provider Identifier (NPI) is 1467422451, issued on Jan 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Richard D. Zak, MD located?
The NPPES record lists a practice address at 1300 N Highland Ave, Aurora, IL, 60506. Phone: (630) 897-5104. Providers update this record themselves, so call before visiting.
How can I verify Richard D. Zak, MD's license?
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 Richard D. Zak, MD prescribe under Medicare Part D?
In 2024, Richard D. Zak, MD had 169 Medicare Part D claims for 57 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), 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.