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

Mark Nicholas Abbott, M.A., M.F.T.

Q: What is the NPI number for Mark Abbott?

The National Provider Identifier (NPI) for Mark Abbott is 1609940600, a Type 1 (individual) record in the CMS NPPES registry.

Mental Health Counselor in Costa Mesa, CA · enumerated 2006 · practices at Xcel Nutrition Therapy, Inc..

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

National Provider Identifier

1609940600

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Registry record

Entity type Individual (Type 1)

Name Mark Nicholas Abbott

Credential M.A., M.F.T.

Sex Male

Practice address Costa Mesa, CA, 92626

Phone (714) 546-2515

Fax (714) 276-1351

Enumeration date Nov 20, 2006

Last updated in NPPES Jul 8, 2007

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

Taxonomy & licenses

101YM0800X Mental Health Counselor Behavioral Health & Social Service Providers · License MFC 33780 (CA) 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 Mark Abbott?

The National Provider Identifier (NPI) for Mark Abbott is 1609940600, a Type 1 (individual) record in the CMS NPPES registry.

Where does Mark Abbott practice?

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

Other providers at this practice address

Browse all →

Xcel Nutrition Therapy, Inc. Registered Dietitian · Costa Mesa, CA NPI 1508821950 Brittnie Pemberton Psychologist · Costa Mesa, CA NPI 1225534506 Mayra Simental Social Worker · Costa Mesa, CA NPI 1447886197 Kai Smith Student in an Organized Health Care Education/Training Program · Costa Mesa, CA NPI 1750171500 Aly Tierney Student in an Organized Health Care Education/Training Program · Costa Mesa, CA NPI 1972394161 Andrew Shahid Student in an Organized Health Care Education/Training Program · Costa Mesa, CA NPI 1407742497

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.