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

Mary E Merchant, PSY. D., MFT, LEP

Marriage & Family Therapist in Irvine, CA · enumerated 2011.

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

National Provider Identifier

1215215348

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Registry record

Entity type Individual (Type 1)

Name Mary E Merchant

Credential PSY. D., MFT, LEP

Sex Female

Practice address Irvine, CA, 92612

Phone (714) 955-1376

Enumeration date Jul 22, 2011

Last updated in NPPES Jul 22, 2011

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

Taxonomy & licenses

103TS0200X School Psychologist Behavioral Health & Social Service Providers · License LEP 2911 (CA) Secondary

106H00000X Marriage & Family Therapist Behavioral Health & Social Service Providers · License MFC 32490 (CA) Primary

PSYD · Doctor of Psychology: A clinical doctorate in psychology focused on professional practice. About the PSYD 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

What is the NPI number for Mary Merchant?

The National Provider Identifier (NPI) for Mary Merchant is 1215215348, a Type 1 (individual) record in the CMS NPPES registry.

Where does Mary Merchant practice?

The practice location on file with NPPES is in Irvine, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Chelsea Henson Behavior Analyst · Irvine, CA NPI 1730268491 Erin Reddy Clinical Child & Adolescent Psychologist · Irvine, CA NPI 1316008501 Valerie Gough Marriage & Family Therapist · Irvine, CA NPI 1346468287 Danielle Summers Marriage & Family Therapist · Irvine, CA NPI 1083861835 Jessica Hamilton Clinical Social Worker · Irvine, CA NPI 1871825257 Autism Spectrum Consultants Developmentally Disabled Services Day Training Agency · Irvine, CA NPI 1306167994 Lauren Lloyd Behavior Analyst · Irvine, CA NPI 1083964324 Tl Licensed Clinical Social Worker Inc. Clinical Social Worker · Irvine, CA NPI 1972934289

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-07-22.