NPPES file of Aug 9, 2026

George T. Nahass, M.D.

Dermatopathology Physician · Glen Carbon, IL

George T. Nahass, M.D. is a dermatopathology physician with a practice address in Glen Carbon, Illinois, and NPI 1215902986, issued on Feb 17, 2006. Check the license (Illinois 036094700, 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
1215902986
Name
George T. Nahass
Credential
M.D.
Primary taxonomy
Dermatopathology Physician 207ND0900X
License number
036094700 IL
Self-reported in NPPES; status is on the state search
Practice location
4573 Benes Ave, Glen Carbon, IL 64064
Phone
(618) 961-1950
Enumerated
Feb 17, 2006
Record last updated
Apr 24, 2024
Medicare enrollment
Enrolled (PECOS I20250922000645); accepts Medicare assignment
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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Verify George T. Nahass 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 036094700
    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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25% more Medicare Part D claims than the average dermatopathology physician in 2024

865 Medicare Part D claims for 374 beneficiaries, against an average of 693 among the 249 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims.

  1. George Nahass865
  2. Specialty average693

Most prescribed

  1. Mupirocin87 claims
  2. Ketoconazole85 claims
  3. Doxycycline Hyclate63 claims
  4. Fluorouracil59 claims
  5. Triamcinolone Acetonide55 claims
  6. Hydrocortisone43 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): 100 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. Costnot scored (reweighted)
  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: $842.48

45 payments; by number, the most common kind was food and beverage; the largest payer was Abbvie Inc. The 233 providers of this specialty with any payment received $2,984.42 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. George Nahass$842.48
  2. Specialty average$2,984.42

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Schweiger Dermatology PLLCNew York, NY
  2. United Skin Specialists Illinois Ltd PCMount Vernon, IL

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

George T. Nahass among 15 dermatopathology physician records in Illinois

George T. Nahass, M.D. is one of 15 dermatopathology physician records with a practice address in Illinois. 67% 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 0% of them.

  • NPI issued2006 · 0% of these records are older, 67% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 67% of these records are
  • Graduated1981 · median 2004 among the 10 with a school on file
  • Record last updated2024 · 53% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207ND0900X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Dermatopathology Physician providers in Illinois

There are 15 dermatopathology physician records in Illinois.

The 8 dermatopathology physician records with the nearest ZIP codes

  1. Tesfu Hailu, MDPeoria, IL 616141245490382
  2. Carl Soderstrom, M.D.Peoria, IL 616141053370759
  3. Albert Hudson, MDRockford, IL 611071053391334
  4. Kyla Price-Jauregui, MDChicago, IL 606371215515176
  5. Kayla St. Claire, MD, MBAChicago, IL 606371487113270
  6. Vesna Petronic-Rosic, MDChicago, IL 606121285796730
  7. Sepideh Asadbeigi, MDChicago, IL 606111073041455
  8. Joan Guitart, MDChicago, IL 606111225074727

Common questions

What is George T. Nahass, M.D.'s NPI number?

George T. Nahass, M.D.'s National Provider Identifier (NPI) is 1215902986, issued on Feb 17, 2006. An NPI identifies a provider in billing; it is not a license.

Where is George T. Nahass, M.D. located?

The NPPES record lists a practice address at 4573 Benes Ave, Glen Carbon, IL, 64064. Phone: (618) 961-1950. Providers update this record themselves, so call before visiting.

How can I verify George T. Nahass, M.D.'s license?

NPPES lists Illinois license number 036094700, 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 George T. Nahass, M.D. prescribe under Medicare Part D?

In 2024, George T. Nahass, M.D. had 865 Medicare Part D claims for 374 beneficiaries; the average among dermatopathology physician prescribers was 693. Part D covers Medicare prescriptions only.

What is George T. Nahass, M.D.'s MIPS final score?

The 2023 MIPS final score is 100 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.