NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Misty Lynn Ostasewski, CRNP

Gerontology Nurse Practitioner in York, PA · enumerated 2018.

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

National Provider Identifier

1891260477

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Misty Lynn Ostasewski
Credential CRNP
Sex Female
Practice address 25 Monument Rd Ste 190, York, PA, 17403
Phone (717) 851-6454
Fax (717) 851-1665
Enumeration date Oct 10, 2018
Last updated in NPPES Mar 2, 2023

Taxonomy & licenses

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License SP019477 (PA) Secondary
363LG0600X Gerontology Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License MO5096739 (PA) Secondary
363LG0600X Gerontology Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License SP019477 (PA) 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 Misty Ostasewski practice?
The practice location on file with NPPES is in York, PA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Misty Ostasewski?
The National Provider Identifier (NPI) for Misty Ostasewski is 1891260477, 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 2023-03-02.