NPPES file of Aug 9, 2026

Nicholas Karjun Chan, M.D.

Ophthalmology Physician · Oak Lawn, IL

Nicholas Karjun Chan, M.D. is an ophthalmology physician with a practice address in Oak Lawn, Illinois, and NPI 1396132403, issued on Apr 16, 2015. Check the license (Illinois 036152835, as entered in NPPES) on the Illinois Department of Financial and Professional Regulation; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1396132403
Name
Nicholas Karjun Chan
Credential
M.D.
Primary taxonomy
Ophthalmology Physician 207W00000X
License number
036152835 IL
Self-reported in NPPES; status is on the state search
Practice location
6201 W 95TH St, Oak Lawn, IL 60453
Phone
(708) 636-9393
Enumerated
Apr 16, 2015
Record last updated
Jan 5, 2026
Fax
(708) 636-2022
Medicare enrollment
Enrolled (PECOS I20200730003612); accepts Medicare assignment
Medical or professional school
Clvlnd Clinic Lerner College Of Med Of Case Wstn Rsv University, 2015
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest ophthalmology physician records → All 898 in Illinois → Look up another NPI →

Also registered at 6201 W 95TH St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Mohammad Al-Khudari, MDOphthalmology Physician1902891948
  2. Agnieszka CantreOphthalmology Physician1356463897
  3. James Carroll, ODOptometrist1649018391
  4. Haris Dzubur, O.D.Corneal and Contact Management Optometrist1760725923
  5. Azalea Garcia, ODOptometrist1689265373
  6. Salvador Gonzalez, ODOptometrist1699348110

Verify Nicholas Karjun Chan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIllinois Department of Financial and Professional Regulation
    Search for license 036152835    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Illinois license search

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74% more Medicare Part D claims than the average ophthalmology physician in 2024

2,646 Medicare Part D claims for 584 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 36% of claims.

  1. Nicholas Chan2,646
  2. Specialty average1,518

Most prescribed

  1. Ofloxacin487 claims
  2. Prednisolone Acetate486 claims
  3. Latanoprost464 claims
  4. Ketorolac Tromethamine401 claims
  5. Dorzolamide-Timolol234 claims
  6. Brimonidine Tartrate111 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: $1,247.61

36 payments; by number, the most common kind was food and beverage; the largest payer was Alcon Vision LLC. 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.

  1. Nicholas Chan$1,247.61
  2. Specialty average$4,535.02

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

  1. Family Eye Physicians LtdOak Lawn, IL

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Nicholas Karjun Chan among 898 ophthalmology physician records in Illinois

Nicholas Karjun Chan, M.D. 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 2015, is newer than 79% of them.

  • NPI issued2015 · 79% of these records are older, 18% newer
  • In a Medicare fileYes · 75% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated2015 · median 1999 among the 551 with a school on file
  • Record last updated2026 · 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 Oak Lawn → Ophthalmology Physician nationwide →

The 8 ophthalmology physician records with the nearest ZIP codes

  1. Mohammad Al-Khudari, MDOak Lawn, IL 604531902891948
  2. Jonathan Buka, M.D.Oak Lawn, IL 604531477522050
  3. Agnieszka CantreOak Lawn, IL 604531356463897
  4. Ralph Dado, MDOak Lawn, IL 604531811956725
  5. Wassia Khaja Ahmed, M.D.Oak Lawn, IL 604531932427754
  6. Inae Kim, MDOak Lawn, IL 604531043831894
  7. James Liang, M.D.Oak Lawn, IL 604531578541983
  8. Sanjay Rao, M.D.Oak Lawn, IL 604531790738615

Common questions

What is Nicholas Karjun Chan, M.D.'s NPI number?

Nicholas Karjun Chan, M.D.'s National Provider Identifier (NPI) is 1396132403, issued on Apr 16, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Nicholas Karjun Chan, M.D. located?

The NPPES record lists a practice address at 6201 W 95TH St, Oak Lawn, IL, 60453. Phone: (708) 636-9393. Providers update this record themselves, so call before visiting.

How can I verify Nicholas Karjun Chan, M.D.'s license?

NPPES lists Illinois license number 036152835, 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 Nicholas Karjun Chan, M.D. prescribe under Medicare Part D?

In 2024, Nicholas Karjun Chan, M.D. had 2,646 Medicare Part D claims for 584 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.