Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Teresa J Poprawski, M.D.

Psychiatry Physician in Oak Brook, IL · enumerated 2007 · practices at Tms Clinical Services Pllc.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1861611345

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Registry record

Entity type Individual (Type 1)

Name Teresa J Poprawski

Credential M.D.

Sex Female

Practice address Oak Brook, IL, 60523

Phone (847) 877-0454

Fax (630) 974-6602

Enumeration date Apr 24, 2007

Last updated in NPPES Nov 13, 2023

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

2084N0402X Neurology with Special Qualifications in Child Neurology Physician Allopathic & Osteopathic Physicians · License 036-115766 (IL) Secondary

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 036-115766 (IL) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
209551	Other	IL	GROUP NUMBER
216421	Other	IL	MEDICARE GROUP

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

Where does Teresa Poprawski practice?

The practice location on file with NPPES is in Oak Brook, IL. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Teresa Poprawski?

The National Provider Identifier (NPI) for Teresa Poprawski is 1861611345, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-11-13.