Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Elizabeth (Libby) Marie Nellsch, PH.D.
School Psychologist in Mesa, AZ · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1912124207
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Dr. Elizabeth (Libby) Marie Nellsch
Credential PH.D.
Sex Female
Practice address 1025 N Country Club Dr, Mesa, AZ, 85201
Phone (480) 472-7514
Enumeration date Apr 19, 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 |
|---|---|---|---|
| 586208 | Medicaid | AZ | - |
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 Elizabeth (Libby) Nellsch practice?
The practice location on file with NPPES is in Mesa, AZ. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Elizabeth (Libby) Nellsch?
The National Provider Identifier (NPI) for Elizabeth (Libby) Nellsch is 1912124207, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Debra Gonzales School Registered Nurse · Mesa, AZ NPI 1144200288 Dianna Janule Physical Therapist · Mesa, AZ NPI 1982786992 Sharla Shipley Occupational Therapy Assistant · Mesa, AZ NPI 1609958735 Cindy Hartmann Occupational Therapist · Mesa, AZ NPI 1689756298 Jennifer Roselli Occupational Therapy Assistant · Mesa, AZ NPI 1912089459 Sean Tili Occupational Therapy Assistant · Mesa, AZ NPI 1790867232 Shauna Lacanlale Occupational Therapist · Mesa, AZ NPI 1912082413 Susana Brat Pediatric Occupational Therapist · Mesa, AZ NPI 1730265281
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.