Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ms. Tamara Sue Rivenburgh-Casillas, FNP
Nurse Practitioner in Chandler, AZ · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1134102965
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Registry record
Entity type Individual (Type 1)
Name Ms. Tamara Sue Rivenburgh-Casillas
Credential FNP
Sex Female
Practice address 1100 S. Dobson Rd, #223, Chandler, AZ, 85286
Phone (480) 821-8888
Fax (480) 821-0888
Enumeration date Nov 25, 2005
Last updated in NPPES Sep 1, 2016
Taxonomy & licenses
363LF0000X Family Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License AP0528 (AZ) Secondary
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License AP0528 (AZ) Primary
FNP · Family Nurse Practitioner: A nurse practitioner certified in family practice across the lifespan.
About the FNP 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.
Frequently asked questions
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Tamara Rivenburgh-Casillas?
Tamara Rivenburgh-Casillas is registered in NPPES with the primary taxonomy of Nurse Practitioner. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Larry Sanders Orthopaedic Surgery Physician · Chandler, AZ NPI 1396725958 Ruthanne Ireland Family Nurse Practitioner · Chandler, AZ NPI 1902871510 Mohammad Shakir Specialist · Chandler, AZ NPI 1578515862 Arthritis & Rheumatology Clinic PC Rheumatology Physician · Chandler, AZ NPI 1891828695 Himal Shah Clinical Cardiac Electrophysiology Physician · Chandler, AZ NPI 1538372628 Jill Mckenzie MOHS-Micrographic Surgery Physician · Chandler, AZ NPI 1154513661 Presidio Primary Care Pllc Primary Care Clinic/Center · Chandler, AZ NPI 1841446085 Albert Amini Surgery Physician · Chandler, AZ NPI 1386890556
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-09-01.