Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mark Douglas Pompeo
Counselor in Tustin, CA · enumerated 2019.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1770132516
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Mark Douglas Pompeo
Sex Male
Practice address 15405 Lansdowne Rd, Tustin, CA, 92782
Phone (714) 258-7710
Enumeration date Sep 4, 2019
Last updated in NPPES Sep 4, 2019
Taxonomy & licenses
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
What is the NPI number for Mark Pompeo?
The National Provider Identifier (NPI) for Mark Pompeo is 1770132516, a Type 1 (individual) record in the CMS NPPES registry.
Where does Mark Pompeo practice?
The practice location on file with NPPES is in Tustin, CA. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Theresa Nguyen Child & Adolescent Psychiatry Physician · Tustin, CA NPI 1679884928 Imelda Sintora Marriage & Family Therapist · Tustin, CA NPI 1730454174 Healthright 360 Community/Behavioral Health Agency · Tustin, CA NPI 1528482023 Charlene Nguon-Rodriguez Marriage & Family Therapist · Tustin, CA NPI 1598322075 Shawn Sinclair Clinical Social Worker · Tustin, CA NPI 1174167373 Nancy Cisneros Addiction (Substance Use Disorder) Counselor · Tustin, CA NPI 1912621384 Elizabeth Salas Addiction (Substance Use Disorder) Counselor · Tustin, CA NPI 1821713660 Healthright 360 Recovery Care Clinic/Center · Tustin, CA NPI 1386361715
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-09-04.