Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mrs. Mary Therese Petrella, ND MS RN FNP BC

Nurse Practitioner in La Salle, IL · enumerated 2006.

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

National Provider Identifier

1922016849

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Registry record

Entity type Individual (Type 1)

Name Mrs. Mary Therese Petrella

Credential ND MS RN FNP BC

Sex Female

Practice address 2970 Chartres, Hygienic Institute Community Health Clinic, La Salle, IL, 61301

Phone (815) 223-0196

Fax (815) 223-0358

Enumeration date Aug 4, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers Primary

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 Mary Petrella practice?

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

What is the NPI number for Mary Petrella?

The National Provider Identifier (NPI) for Mary Petrella is 1922016849, a Type 1 (individual) record in the CMS NPPES registry.

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.