NPPES file of Aug 9, 2026

Teresa J. Poprawski, M.D.

Psychiatry Physician · Oak Brook, IL

Teresa J. Poprawski, M.D. is a psychiatry physician with a practice address in Oak Brook, Illinois, and NPI 1861611345, issued on Apr 24, 2007. Check the license (Illinois 036-115766, 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
1861611345
Name
Teresa J. Poprawski
Credential
M.D.
Primary taxonomy
Psychiatry Physician 2084P0800X
License number
036-115766 IL
Self-reported in NPPES; status is on the state search
Practice location
1100 Jorie Blvd Ste 300, Oak Brook, IL 60523
Phone
(847) 877-0454
Enumerated
Apr 24, 2007
Record last updated
Nov 13, 2023
Fax
(630) 974-6602
Medicare enrollment
Enrolled (PECOS I20200507000603); accepts Medicare assignment
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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Also registered at 1100 Jorie Blvd Ste 300

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

  1. Christina BorgheseMental Health Counselor1821671744
  2. Sabrina Connelly, LCSWClinical Social Worker1376711127
  3. Allison Hasenmiller, LCSWClinical Social Worker1134957061
  4. Christian LedezmaMental Health Counselor1235644980
  5. Ketrina Premti, M.A., LPCProfessional Counselor1679440465
  6. Caitlin StrebingPsychiatric/Mental Health Nurse Practitioner1134587496

Verify Teresa J. Poprawski 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 036-115766
    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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74% fewer Medicare Part D claims than the average psychiatry physician in 2024

257 Medicare Part D claims for 11 beneficiaries, against an average of 1,000 among the 35,054 providers of this specialty who prescribed in Part D. Brand-name drugs were 100% of claims.

  1. Teresa Poprawski257
  2. Specialty average1,000

Most prescribed

  1. Spravato257 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 2 group practices

  1. Tms Clinical Services OF Wisconsin SCMiddleton, WI
  2. Tms Clinical Services PLLCOak Brook, IL

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

Teresa J. Poprawski among 2,147 psychiatry physician records in Illinois

Teresa J. Poprawski, M.D. 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 2007, is newer than 35% of them.

  • NPI issued2007 · 35% of these records are older, 50% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileYes · 41% of these records are
  • Graduated1998 · median 2004 among the 877 with a school on file
  • Record last updated2023 · 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).

18 psychiatry physician records list a practice address in Oak Brook

They are 18 of the 950 NPPES records with a practice address in Oak Brook, and 2,147 psychiatry physician records in Illinois.

The 8 psychiatry physician records with the nearest ZIP codes

  1. Mohammed Alam, MDOak Brook, IL 605231447549688
  2. Dima Arbach, M.D.Oak Brook, IL 605231760739114
  3. Thomas Byrne, MDOak Brook, IL 605231225047293
  4. Alexia Copenhaver, M.D.Oak Brook, IL 605231851825392
  5. Evan Deranja, M.D., PH.D.Oak Brook, IL 605231780849976
  6. Farozan Islam, DOOak Brook, IL 605231750426540
  7. Andrew Kowalkowski, M.D.Oak Brook, IL 605231154517951
  8. Kumar Moolayil, M.DOak Brook, IL 605231134215569

Common questions

What is Teresa J. Poprawski, M.D.'s NPI number?

Teresa J. Poprawski, M.D.'s National Provider Identifier (NPI) is 1861611345, issued on Apr 24, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Teresa J. Poprawski, M.D. located?

The NPPES record lists a practice address at 1100 Jorie Blvd Ste 300, Oak Brook, IL, 60523. Phone: (847) 877-0454. Providers update this record themselves, so call before visiting.

How can I verify Teresa J. Poprawski, M.D.'s license?

NPPES lists Illinois license number 036-115766, 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 Teresa J. Poprawski, M.D. prescribe under Medicare Part D?

In 2024, Teresa J. Poprawski, M.D. had 257 Medicare Part D claims for 11 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.