NPPES file of Aug 9, 2026

Anthony T. McCormack, M.D.

Geriatric Medicine (Internal Medicine) Physician · Park Ridge, IL

Anthony T. McCormack, M.D. is a geriatric medicine (internal medicine) physician with a practice address in Park Ridge, Illinois, and NPI 1154388791, issued on Apr 27, 2006. Check the license (Illinois 036-077374, 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
1154388791
Name
Anthony T. McCormack
Credential
M.D.
Primary taxonomy
Geriatric Medicine (Internal Medicine) Physician 207RG0300X
License numbers
036-077374 IL
036077374 IL
Self-reported in NPPES; status is on the state search
Practice location
1875 Dempster St Ste 520, Park Ridge, IL 60068
Phone
(847) 720-6464
Enumerated
Apr 27, 2006
Record last updated
Mar 20, 2025
Fax
(847) 720-6463
Medicare enrollment
Enrolled (PECOS I20040507000610); accepts Medicare assignment
Medical or professional school
Illinois Medical College, 1986
Telehealth
Offers telehealth (CMS)
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 geriatric medicine (internal medicine) physician records → All 179 in Illinois → Look up another NPI →

Also registered at 1875 Dempster St Ste 520

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

  1. Mia Erland, LCSWClinical Social Worker1558104141
  2. Elizabeth Hartman, PHDClinical Neuropsychologist1740638915
  3. Margaret Konieczny, APRN, CNPNurse Practitioner1356860100
  4. Jeong Hwan Yi, LCSWClinical Social Worker1962969063

Verify Anthony T. McCormack 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 036-077374    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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68% fewer Medicare Part D claims than the average geriatric medicine (internal medicine) physician in 2024

1,374 Medicare Part D claims for 336 beneficiaries, against an average of 4,246 among the 3,116 providers of this specialty who prescribed in Part D.

  1. Anthony McCormack1,374
  2. Specialty average4,246

Most prescribed

  1. Donepezil Hcl516 claims
  2. Memantine Hcl227 claims
  3. Escitalopram Oxalate211 claims
  4. Sertraline Hcl136 claims
  5. Quetiapine Fumarate65 claims
  6. Mirtazapine39 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.

Bills Medicare through one group practice

  1. Advocate Health And Hospitals CorporationPark Ridge, IL

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

Anthony T. McCormack among 179 geriatric medicine (internal medicine) physician records in Illinois

Anthony T. McCormack, M.D. is one of 179 geriatric medicine (internal medicine) physician records with a practice address in Illinois. 71% 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 8% of them.

  • NPI issued2006 · 8% of these records are older, 40% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 42% of these records are
  • Graduated1986 · median 1997 among the 76 with a school on file
  • Record last updated2025 · 59% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0300X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Geriatric Medicine (Internal Medicine) Physician providers in Illinois

There are 179 geriatric medicine (internal medicine) physician records in Illinois.

All 179 in Illinois → Every provider in Park Ridge → Geriatric Medicine (Internal Medicine) Physician nationwide →

The 8 geriatric medicine (internal medicine) physician records with the nearest ZIP codes

  1. William Rhoades, D.O.Park Ridge, IL 600681033148457
  2. Brian Rubenstein, MDPark Ridge, IL 600681093745622
  3. Laura Camoletto, MDPalatine, IL 600671801925292
  4. Jabeen Abutalib, M.D.North Chicago, IL 600641750505608
  5. Martin Beermann, M.D.North Chicago, IL 600641407842594
  6. Jen-Chieh Cheng, M.D.03/08/1941North Chicago, IL 600641154331098
  7. Antoni Piergies, M.D.Skokie, IL 600771639322662
  8. Carolyn Hildreth, M.D.Mt Prospect, IL 600561184659518

Common questions

What is Anthony T. McCormack, M.D.'s NPI number?

Anthony T. McCormack, M.D.'s National Provider Identifier (NPI) is 1154388791, issued on Apr 27, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Anthony T. McCormack, M.D. located?

The NPPES record lists a practice address at 1875 Dempster St Ste 520, Park Ridge, IL, 60068. Phone: (847) 720-6464. Providers update this record themselves, so call before visiting.

How can I verify Anthony T. McCormack, M.D.'s license?

NPPES lists Illinois license number 036-077374, 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 Anthony T. McCormack, M.D. prescribe under Medicare Part D?

In 2024, Anthony T. McCormack, M.D. had 1,374 Medicare Part D claims for 336 beneficiaries; the average among geriatric medicine (internal medicine) physician prescribers was 4,246. 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.