Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Carissa Ladwig-Cox, PA-C

Physician Assistant in Upland, CA · enumerated 2022 · practices at Robert J. Kolesnik M.D., Inc..

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

National Provider Identifier

1326781238

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Registry record

Entity type Individual (Type 1)

Name Carissa Ladwig-Cox

Credential PA-C

Sex Female

Practice address 1230 E Arrow Hwy, Upland, CA, 91786

Phone (909) 622-1235

Fax (909) 948-0506

Enumeration date Apr 18, 2022

Last updated in NPPES Aug 13, 2025

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA60828 (CA) 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

How do I verify Carissa Ladwig-Cox's NPI record?

Cross-check NPI 1326781238 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1326781238 active?

Yes, as of the latest NPPES snapshot, NPI 1326781238 is active (record last updated 2025-08-13).

Other providers at this practice address

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Robert Kolesnik Specialist · Upland, CA NPI 1760564256 Robert J. Kolesnik M.D., Inc. Specialist · Upland, CA NPI 1639247216 Jonathan Price Chiropractor · Upland, CA NPI 1497136899 Corinne Maxwell Pediatrics Physician · Upland, CA NPI 1154040178 Charles Henderson Medical Physician Assistant · Upland, CA NPI 1700665536

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-08-13.