Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Allyson M Van Horn, R.N.

Registered Nurse in Modesto, CA · enumerated 2009.

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

National Provider Identifier

1235361536

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Registry record

Entity type Individual (Type 1)

Name Allyson M Van Horn

Credential R.N.

Sex Female

Practice address 1540 Florida Ave, Suite 100, Modesto, CA, 95350

Phone (209) 577-5557

Fax (209) 577-8125

Enumeration date Aug 20, 2009

Last updated in NPPES Aug 20, 2009

Taxonomy & licenses

163W00000X Registered Nurse Nursing Service Providers · License 719055 (CA) Primary

RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam. About the RN credential

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 specialty is Allyson Van Horn?

Allyson Van Horn is registered in NPPES with the primary taxonomy of Registered Nurse. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

Other providers at this practice address

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Richard Gratian Pediatric Cardiology Physician · Modesto, CA NPI 1487608477 Leslie Baluyot Cardiovascular Disease Physician · Modesto, CA NPI 1134176381 Louis Endsley Interventional Cardiology Physician · Modesto, CA NPI 1700826682 Valley Heart Associates Medical Group Inc Cardiovascular Disease Physician · Modesto, CA NPI 1689614562 William Smith Cardiovascular Disease Physician · Modesto, CA NPI 1750321717 Adele Goodeyon Nurse Practitioner · Modesto, CA NPI 1447290093 Alvin Eng Cardiovascular Disease Physician · Modesto, CA NPI 1013957851 Drew Logue Pulmonary Disease Physician · Modesto, CA NPI 1629001524

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-08-20.