Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alexander Messina, CRNP

Nurse Practitioner in Hershey, PA · enumerated 2026.

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

National Provider Identifier

1093621450

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Registry record

Entity type Individual (Type 1)

Name Alexander Messina

Credential CRNP

Sex Male

Practice address 500 University Dr, Hershey, PA, 17033

Phone (800) 243-1455

Enumeration date Aug 24, 2026

Last updated in NPPES Aug 24, 2026

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License SP036940 (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

What is the NPI number for Alexander Messina?

The National Provider Identifier (NPI) for Alexander Messina is 1093621450, a Type 1 (individual) record in the CMS NPPES registry.

Where does Alexander Messina practice?

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

Other providers at this practice address

Browse all →

Robert Aronoff Cardiovascular Disease Physician · Hershey, PA NPI 1043213226 Hy Depamphilis Internal Medicine Physician · Hershey, PA NPI 1609879691 Elaine Cochran Pediatric Nurse Practitioner · Hershey, PA NPI 1962405100 Joy Cotton Cardiovascular Disease Physician · Hershey, PA NPI 1972506137 Louis Winner Diagnostic Radiology Physician · Hershey, PA NPI 1467455576 Serdar Ural Maternal & Fetal Medicine Physician · Hershey, PA NPI 1912900812 Lisa Mcgregor Pediatric Hematology & Oncology Physician · Hershey, PA NPI 1881697662 John Briguglio Vascular & Interventional Radiology Physician · Hershey, PA NPI 1104829902

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-08-24.