Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Lisa Sommer Merrin, PH.D.
Psychologist in Tempe, AZ · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1699825711
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Registry record
Entity type Individual (Type 1)
Name Dr. Lisa Sommer Merrin
Credential PH.D.
Sex Female
Practice address 500 W Guadalupe Rd, Tempe, AZ, 85283
Phone (480) 838-3200
Enumeration date Jan 11, 2007
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
PHD · Doctor of Philosophy: A doctoral degree; in healthcare often held by clinical psychologists and researchers.
About the PHD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 569858 | Other | AZ | AHCCCS PROVIDER NUMBER |
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
Where does Lisa Merrin practice?
The practice location on file with NPPES is in Tempe, AZ. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Lisa Merrin?
The National Provider Identifier (NPI) for Lisa Merrin is 1699825711, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Diana Boyd Clinical Social Worker · Tempe, AZ NPI 1538159462 Jennifer Dregely Mental Health Counselor · Tempe, AZ NPI 1508916529 Susan Mcgill Social Worker · Tempe, AZ NPI 1467503078 Sandra Goodman Speech-Language Pathologist · Tempe, AZ NPI 1720138316 Tempe Union High School District #213 Local Education Agency (LEA) · Tempe, AZ NPI 1124166947 Amanda Austin Renfrow Physical Therapist · Tempe, AZ NPI 1932249349 Ron Denne School Psychologist · Tempe, AZ NPI 1063552388 John Balles School Psychologist · Tempe, AZ NPI 1700066792
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.