Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ms. Lydia M Stiltz, NP
Registered Nurse in Napa, CA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1275605297
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Registry record
Entity type Individual (Type 1)
Name Ms. Lydia M Stiltz
Credential NP
Sex Female
Practice address 1411 Pear Tree Lane Suite 100, Napa, CA, 94558
Phone (707) 254-1778
Fax (707) 254-2993
Enumeration date Nov 14, 2006
Last updated in NPPES Sep 11, 2025
Taxonomy & licenses
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 16881 (CA) Secondary
NP · Nurse Practitioner: An advanced practice registered nurse with graduate training, licensed to diagnose and treat, often with prescriptive authority.
About the NP credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 16881 | Other | CA | NP STATE LICENSE # |
| 641125 | Other | CA | RN STATE LICENSE # |
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.
Frequently asked questions
Where does Lydia Stiltz practice?
The practice location on file with NPPES is in Napa, CA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Lydia Stiltz?
The National Provider Identifier (NPI) for Lydia Stiltz is 1275605297, a Type 1 (individual) record in the CMS NPPES registry.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-11.