Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Arielle Louisa Klepper

Hospitalist Physician in San Francisco, CA · enumerated 2016.

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

National Provider Identifier

1912351180

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Arielle Louisa Klepper

Sex Female

Practice address 505 Parnassus Ave, Room 987, San Francisco, CA, 94143

Phone (415) 476-1528

Enumeration date Apr 14, 2016

Last updated in NPPES Dec 26, 2024

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License A152544 (CA) Secondary

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License A152544 (CA) Secondary

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License A152544 (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.

Read the full guide → Validate an NPI →

Frequently asked questions

What is the NPI number for Arielle Klepper?

The National Provider Identifier (NPI) for Arielle Klepper is 1912351180, a Type 1 (individual) record in the CMS NPPES registry.

Where does Arielle Klepper practice?

The practice location on file with NPPES is in San Francisco, CA. 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 2024-12-26.