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

Mary Catherine Peltier

Q: What is the NPI number for Mary Peltier?

The National Provider Identifier (NPI) for Mary Peltier is 1720295918, a Type 1 (individual) record in the CMS NPPES registry.

Addiction (Substance Use Disorder) Counselor in Spring Valley, CA · enumerated 2007.

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

National Provider Identifier

1720295918

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Mary Catherine Peltier

Sex Female

Practice address Spring Valley, CA, 91978

Phone (619) 337-3830

Fax (619) 337-3610

Enumeration date May 17, 2007

Last updated in NPPES Jun 3, 2016

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

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers 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 Mary Peltier?

The National Provider Identifier (NPI) for Mary Peltier is 1720295918, a Type 1 (individual) record in the CMS NPPES registry.

Where does Mary Peltier practice?

The practice location on file with NPPES is in Spring Valley, 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 2016-06-03.