Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Stanley Lorenz Koleszar, RN CRNP

Family Nurse Practitioner in Putnam, CT · enumerated 2006 · practices at St. Luke'S Family Medicine.

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

National Provider Identifier

1972571354

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Registry record

Entity type Individual (Type 1)

Name Stanley Lorenz Koleszar

Credential RN CRNP

Sex Male

Practice address 7 Kennedy Dr, Putnam, CT, 06260

Phone (860) 928-7704

Fax (860) 928-4092

Enumeration date Mar 10, 2006

Last updated in NPPES Apr 2, 2026

Taxonomy & licenses

363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License SP010390 (PA) Primary

Other identifiers

Identifier	Type	State	Issuer
167622XZJ	Medicaid	PA	-

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 Stanley Koleszar?

The National Provider Identifier (NPI) for Stanley Koleszar is 1972571354, a Type 1 (individual) record in the CMS NPPES registry.

Where does Stanley Koleszar practice?

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

Other providers at this practice address

Browse all →

Joseph Creme Family Medicine Physician · Putnam, CT NPI 1699745604 Daniel O'Neill Internal Medicine Physician · Putnam, CT NPI 1972578508 Gerald Sullivan Family Medicine Physician · Putnam, CT NPI 1154396927 St. Luke'S Family Medicine Family Medicine Physician · Putnam, CT NPI 1134201437 Daniel Storey Family Medicine Physician · Putnam, CT NPI 1215252754 Maryam Abdishoo Family Nurse Practitioner · Putnam, CT NPI 1275143778

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-04-02.