Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ruben Omar Espinoza, M.D.
Pediatrics Physician in Mesa, AZ · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1164621470
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Ruben Omar Espinoza
Credential M.D.
Sex Male
Practice address 1220 S Higley Rd Ste 101, Mesa, AZ, 85206
Phone (480) 827-5045
Fax (480) 827-5181
Enumeration date Jul 16, 2007
Last updated in NPPES Jul 17, 2024
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 233048 | 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
What specialty is Ruben Espinoza?
Ruben Espinoza is registered in NPPES with the primary taxonomy of Pediatrics Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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.
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-07-17.