Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Hilda Klara Thorisdottir, M.D.

Internal Medicine Physician in La Jolla, CA · enumerated 2006.

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

National Provider Identifier

1689755720

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Registry record

Entity type Individual (Type 1)

Name Dr. Hilda Klara Thorisdottir

Credential M.D.

Sex Female

Practice address 3350 La Jolla Village Dr, 111 N, La Jolla, CA, 92037

Phone (858) 552-8585

Fax (858) 642-6325

Enumeration date Oct 17, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License A50730 (CA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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 is the NPI number for Hilda Thorisdottir?

The National Provider Identifier (NPI) for Hilda Thorisdottir is 1689755720, a Type 1 (individual) record in the CMS NPPES registry.

Where does Hilda Thorisdottir practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.