Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Margaret E. Woznica, MD

Pulmonary Disease Physician in Willimantic, CT · enumerated 2006.

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

National Provider Identifier

1154399558

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Registry record

Entity type Individual (Type 1)

Name Dr. Margaret E. Woznica

Credential MD

Sex Female

Practice address 112 Mansfield Ave, Hatch Wing, Willimantic, CT, 06226

Phone (860) 456-7279

Fax (860) 456-0269

Enumeration date Mar 10, 2006

Last updated in NPPES Apr 8, 2019

Taxonomy & licenses

207RS0012X Sleep Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 28521 (CT) Secondary

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License 028521 (CT) 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
1154399558	Other	-	NPI

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

What is the NPI number for Margaret Woznica?

The National Provider Identifier (NPI) for Margaret Woznica is 1154399558, a Type 1 (individual) record in the CMS NPPES registry.

Where does Margaret Woznica practice?

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

Other providers at this practice address

Browse all →

Robert Bundy Pulmonary Disease Physician · Willimantic, CT NPI 1962400630 Anna Bunch Nurse Practitioner · Willimantic, CT NPI 1336149459 Marlene Schwartz Pulmonary Disease Physician · Willimantic, CT NPI 1003892829 Tracy Hawthorne Physician Assistant · Willimantic, CT NPI 1528046646 Nadia Nashid Anatomic Pathology & Clinical Pathology Physician · Willimantic, CT NPI 1932189693 Marilyn Kritzman Anatomic Pathology & Clinical Pathology Physician · Willimantic, CT NPI 1245210913 Marc Guttman Emergency Medicine Physician · Willimantic, CT NPI 1295709186 Neil Moynihan Emergency Medicine Physician · Willimantic, CT NPI 1386606523

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-04-08.