Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Karin Jonczak, C.R.N.P.

Acute Care Nurse Practitioner in Willow Grove, PA · enumerated 2009.

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

National Provider Identifier

1174859235

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Registry record

Entity type Individual (Type 1)

Name Karin Jonczak

Credential C.R.N.P.

Sex Female

Practice address 2510 Maryland Rd, Suite 185, Willow Grove, PA, 19090

Phone (215) 657-5886

Fax (215) 657-9996

Enumeration date Oct 26, 2009

Last updated in NPPES Oct 18, 2011

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License RN604316 (PA) Secondary

363LA2100X Acute Care Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License SP010525 (PA) Primary

Other identifiers

Identifier	Type	State	Issuer
1024191690001	Medicaid	PA	-
1174859235	Other	PA	HEALTHPARTNERS - PA
2138224	Other	PA	HIGHMARK BCBS

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

Is NPI 1174859235 active?

Yes, as of the latest NPPES snapshot, NPI 1174859235 is active (record last updated 2011-10-18).

How do I verify Karin Jonczak's NPI record?

Cross-check NPI 1174859235 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

John Kleback Pediatrics Physician · Willow Grove, PA NPI 1184629255 Colleen Gulczynski Pediatrics Physician · Willow Grove, PA NPI 1457356511 Abington Memorial Hospital Community Based Hospice Care Agency · Willow Grove, PA NPI 1770564965 Abington Memorial Hospital Home Health Agency · Willow Grove, PA NPI 1164403358 North Willow Grove Pediatrics, PC Pediatrics Physician · Willow Grove, PA NPI 1710958178 Jonas Gopez Neurological Surgery Physician · Willow Grove, PA NPI 1083652051 Steven Barrer Neurological Surgery Physician · Willow Grove, PA NPI 1194766386 Michael Yoon Neurological Surgery Physician · Willow Grove, PA NPI 1821039090

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-10-18.