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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Leah Theresa Riha, NP

Nurse Practitioner in Saint Helena, CA · enumerated 2012.

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

National Provider Identifier

1558629097

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Registry record

Entity type Individual (Type 1)
Name Leah Theresa Riha
Credential NP
Sex Female
Practice address Saint Helena, CA, 94574
Phone (707) 963-0931
Fax (707) 254-1779
Enumeration date May 2, 2012
Last updated in NPPES Jul 21, 2022

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License NP21225 (CA) Primary
NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority. About the NP 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.

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Frequently asked questions

Is NPI 1558629097 active?
Yes, as of the latest NPPES snapshot, NPI 1558629097 is active (record last updated 2022-07-21).
How do I verify Leah Riha's NPI record?
Cross-check NPI 1558629097 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-07-21.