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

Kelly Kostelich, LCSW

Clinical Social Worker in Philadelphia, PA · enumerated 2016.

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

National Provider Identifier

1437694957

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Kelly Kostelich

Credential LCSW

Sex Female

Practice address Philadelphia, PA, 19107

Phone (215) 503-2838

Enumeration date Dec 20, 2016

Last updated in NPPES Jul 1, 2019

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

Taxonomy & licenses

104100000X Social Worker Behavioral Health & Social Service Providers Secondary

1041C0700X Clinical Social Worker Behavioral Health & Social Service Providers · License CW20238 (PA) Primary

LCSW · Licensed Clinical Social Worker: A social worker licensed for clinical practice including mental-health therapy. About the LCSW credential

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 Kelly Kostelich practice?

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

What is the NPI number for Kelly Kostelich?

The National Provider Identifier (NPI) for Kelly Kostelich is 1437694957, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-07-01.