NPPES file of Aug 9, 2026

Nickolas Katsoulakis, M.D.

Ophthalmology Physician · Palos Heights, IL

Nickolas Katsoulakis, M.D. is an ophthalmology physician with a practice address in Palos Heights, Illinois, and NPI 1902023088, issued on Apr 19, 2007. Check the license (Illinois 036123759, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1902023088
Name
Nickolas Katsoulakis
Credential
M.D.
Primary taxonomy
Ophthalmology Physician 207W00000X
License numbers
036123759 IL
247724 NY
LP00389 RI
Self-reported in NPPES; status is on the state search
Practice location
7340 W College Dr, Palos Heights, IL 60463
Phone
(708) 361-7800
Enumerated
Apr 19, 2007
Record last updated
Feb 18, 2010 (not updated in 16 years: call before relying on the address or phone)
Fax
(708) 361-8737
Medicare enrollment
Enrolled (PECOS I20091118000537); accepts Medicare assignment
Medical or professional school
State University Of New York - State College Optometry, 2004
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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Also registered at 7340 W College Dr

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

  1. Michael Beyer, MDOphthalmology Physician1144750399
  2. Haley Mascitti, O.D.Optometrist1225393507

Verify Nickolas Katsoulakis 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 036123759
    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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100% more Medicare Part D claims than the average ophthalmology physician in 2024

3,031 Medicare Part D claims for 656 beneficiaries, against an average of 1,518 among the 16,459 providers of this specialty who prescribed in Part D. Brand-name drugs were 45% of claims.

  1. Nickolas Katsoulakis3,031
  2. Specialty average1,518

Most prescribed

  1. Prednisolone Acetate739 claims
  2. Latanoprost554 claims
  3. Ofloxacin495 claims
  4. Ketorolac Tromethamine323 claims
  5. Timolol Maleate149 claims
  6. Lumigan132 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 95.7 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score100.0
  2. Costout of 100 · 30%85.6
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $435.63

19 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie 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.

  1. Nickolas Katsoulakis$435.63
  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. Krates Eye Centers PLLCPalos Heights, IL

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

  1. Walid Abdallah, MDRockford, IL1871912717
  2. Robert Abishek, MDChicago, IL1760314678
  3. Ashley Abraham, M.D.Springfield, IL1285900423
  4. Evelyn Ackermann, MDElgin, IL1053308676
  5. Kathleen Ackman Blake, MDHinsdale, IL1497734966
  6. Kaela Acuff, MDChicago, IL1609678549
  7. Nolan AdamsMaywood, IL1124581780
  8. Mohamed Adenwalla, M.D.Elmhurst, IL1184679524
  9. Roger Adler, MDPekin, IL1063465110
  10. Armin Afshar, M.D.Chicago, IL1063742161

Common questions

What is Nickolas Katsoulakis, M.D.'s NPI number?

Nickolas Katsoulakis, M.D.'s National Provider Identifier (NPI) is 1902023088, issued on Apr 19, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Nickolas Katsoulakis, M.D. located?

The NPPES record lists a practice address at 7340 W College Dr, Palos Heights, IL, 60463. Phone: (708) 361-7800. Providers update this record themselves, so call before visiting.

How can I verify Nickolas Katsoulakis, M.D.'s license?

NPPES lists Illinois license number 036123759, 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 Nickolas Katsoulakis, M.D. prescribe under Medicare Part D?

In 2024, Nickolas Katsoulakis, M.D. had 3,031 Medicare Part D claims for 656 beneficiaries; the average among ophthalmology physician prescribers was 1,518. Part D covers Medicare prescriptions only.

What is Nickolas Katsoulakis, M.D.'s MIPS final score?

The 2023 MIPS final score is 95.7 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.