NPPES file of Aug 9, 2026

Thomas Leo Dimatteo, MD

Psychiatry Physician · Lisle, IL

Thomas Leo Dimatteo, MD is a psychiatry physician with a practice address in Lisle, Illinois, and NPI 1487601985, issued on May 28, 2006. Check the license (Illinois 036099838, 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
1487601985
Name
Thomas Leo Dimatteo
Credential
MD
Primary taxonomy
Psychiatry Physician 2084P0800X
License numbers
036099838 IL
036-099838 IL
Self-reported in NPPES; status is on the state search
Practice location
5950 Lincoln Ave, Lisle, IL 60532
Phone
(630) 541-8930
Enumerated
May 28, 2006
Record last updated
May 1, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(630) 541-8940
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 5950 Lincoln Ave

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

  1. Philip Martinez, LCPCProfessional Counselor1699734632
  2. Tina Mattera, M.D.Child & Adolescent Psychiatry Physician1952526345
  3. Kary Pekarek, LCSWClinical Social Worker1316377120

Verify Thomas Leo Dimatteo 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 036099838
    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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48% more Medicare Part D claims than the average psychiatry physician in 2024

1,480 Medicare Part D claims for 66 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 5% of claims.

  1. Thomas Dimatteo1,480
  2. Specialty average1,000

Most prescribed

  1. Fluoxetine Hcl143 claims
  2. Lorazepam124 claims
  3. Diazepam89 claims
  4. Sertraline Hcl89 claims
  5. Risperidone71 claims
  6. Trazodone Hcl65 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: $1,123.78

55 payments; by number, the most common kind was food and beverage; the largest payer was Corium, LLC. The 13,693 providers of this specialty with any payment received $4,954.93 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Thomas Dimatteo$1,123.78
  2. Specialty average$4,954.93

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

Thomas Leo Dimatteo among 2,147 psychiatry physician records in Illinois

Thomas Leo Dimatteo, MD is one of 2,147 psychiatry physician records with a practice address in Illinois. 69% 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 5% of them.

  • NPI issued2006 · 5% of these records are older, 65% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileNo · 41% of these records are
  • Record last updated2014 · 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 2084P0800X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychiatry Physician providers in Illinois

There are 2,147 psychiatry physician records in Illinois.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Paul Capriotti, MDLisle, IL 605321609859271
  2. David Lott, MDLisle, IL 605321699752394
  3. Courtney Wiseman, MD, MPHLisle, IL 605321154496552
  4. Syed Khadri, M.D.Willowbrook, IL 605271154377836
  5. Bharathi Marri, MDBurr Ridge, IL 605271194735936
  6. Aarti MehtaBurr Ridge, IL 605271588823207
  7. Rubeena Mian, M.D.Willowbrook, IL 605271225171614
  8. Kamaloshini Puthumana, MDBurr Ridge, IL 605271891082533

Common questions

What is Thomas Leo Dimatteo, MD's NPI number?

Thomas Leo Dimatteo, MD's National Provider Identifier (NPI) is 1487601985, issued on May 28, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Thomas Leo Dimatteo, MD located?

The NPPES record lists a practice address at 5950 Lincoln Ave, Lisle, IL, 60532. Phone: (630) 541-8930. Providers update this record themselves, so call before visiting.

How can I verify Thomas Leo Dimatteo, MD's license?

NPPES lists Illinois license number 036099838, 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 Thomas Leo Dimatteo, MD prescribe under Medicare Part D?

In 2024, Thomas Leo Dimatteo, MD had 1,480 Medicare Part D claims for 66 beneficiaries; the average among psychiatry physician prescribers was 1,000. 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.