NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Joyce L Larson, PA-C

Medical Physician Assistant in Watertown, SD · enumerated 2006.

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

National Provider Identifier

1710923594

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Joyce L Larson
Credential PA-C
Sex Female
Practice address 506 1st Ave Se, Watertown, SD, 57201
Fax (605) 884-4300
Enumeration date Jun 21, 2006
Last updated in NPPES Oct 31, 2016

Taxonomy & licenses

363AM0700X Medical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 9179 (MN) Primary
363AM0700X Medical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 1019 (SD) Secondary

Other identifiers

Identifier Type State Issuer
182785500 Medicaid MN -

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 Joyce Larson?
The National Provider Identifier (NPI) for Joyce Larson is 1710923594, a Type 1 (individual) record in the CMS NPPES registry.
Where does Joyce Larson practice?
The practice location on file with NPPES is in Watertown, SD. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-10-31.