Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mrs. Ruth Ethel Pflueger, NP, PA
Nurse Practitioner in Modesto, CA · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1518155175
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Registry record
Entity type Individual (Type 1)
Name Mrs. Ruth Ethel Pflueger
Credential NP, PA
Sex Female
Practice address 1300 Mable Ave, Modesto, CA, 95355
Phone (209) 571-1992
Fax (209) 571-1994
Enumeration date Oct 9, 2007
Last updated in NPPES Oct 9, 2007
Taxonomy & licenses
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License 16946 (CA) Secondary
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 332272 (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
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 332272 | Other | CA | NP LICENSE |
| 16946 | Other | CA | PA 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
Is NPI 1518155175 active?
Yes, as of the latest NPPES snapshot, NPI 1518155175 is active (record last updated 2007-10-09).
How do I verify Ruth Pflueger's NPI record?
Cross-check NPI 1518155175 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-10-09.