Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Louise M Zarrow, CRNP
Nurse Practitioner in Allentown, PA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1154307825
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Registry record
Entity type Individual (Type 1)
Name Louise M Zarrow
Credential CRNP
Sex Female
Practice address 850 S 5th Street, Good Shepherd Physician Group 5th Floor Billing, Allentown, PA, 18103
Phone (610) 778-9297
Fax (610) 778-9270
Enumeration date Dec 15, 2005
Last updated in NPPES Oct 1, 2009
Taxonomy & licenses
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License SP008252 (PA) Primary
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 2000361 | Other | PA | KEYSTONE |
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.
Frequently asked questions
Where does Louise Zarrow practice?
The practice location on file with NPPES is in Allentown, PA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Louise Zarrow?
The National Provider Identifier (NPI) for Louise Zarrow is 1154307825, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-10-01.