Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alexandra M Wack, CRNP

Nurse Practitioner in Bryn Mawr, PA · enumerated 2011.

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

National Provider Identifier

1770866402

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Registry record

Entity type Individual (Type 1)

Name Alexandra M Wack

Credential CRNP

Sex Female

Practice address 918 County Line Rd, Bryn Mawr, PA, 19010

Phone (610) 525-6086

Fax (610) 525-6631

Enumeration date Sep 20, 2011

Last updated in NPPES Sep 20, 2011

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License SP011592 (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.

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Frequently asked questions

What is the NPI number for Alexandra Wack?

The National Provider Identifier (NPI) for Alexandra Wack is 1770866402, a Type 1 (individual) record in the CMS NPPES registry.

Where does Alexandra Wack practice?

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

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-09-20.