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

Dr. Mary V Gwaltney, PH.D.

Clinical Child & Adolescent Psychologist in Sacramento, CA · enumerated 2008.

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

National Provider Identifier

1609037910

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Mary V Gwaltney

Credential PH.D.

Sex Female

Practice address Sacramento, CA, 95864

Phone (916) 972-9400

Fax (916) 972-9500

Enumeration date Jun 19, 2008

Last updated in NPPES Oct 3, 2012

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

Taxonomy & licenses

101Y00000X Counselor Behavioral Health & Social Service Providers · License LEP2540 (CA) Secondary

103TC2200X Clinical Child & Adolescent Psychologist Behavioral Health & Social Service Providers · License LEP2540 (CA) Primary

103TB0200X Cognitive & Behavioral Psychologist Behavioral Health & Social Service Providers · License LEP254 (CA) Secondary

PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers. About the PHD 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.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Mary Gwaltney's NPI record?

Cross-check NPI 1609037910 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Is NPI 1609037910 active?

Yes, as of the latest NPPES snapshot, NPI 1609037910 is active (record last updated 2012-10-03).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-10-03.