Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Ernestina Pelayo De Olivares, MD

Psychiatry Physician in Tucson, AZ · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1841371523

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Ernestina Pelayo De Olivares

Credential MD

Sex Female

Practice address 5425 N Oracle Rd Ste 115, Tucson, AZ, 85704

Phone (520) 742-9166

Fax (520) 742-9146

Enumeration date Oct 18, 2006

Last updated in NPPES Oct 11, 2011

Taxonomy & licenses

2084P0800X Psychiatry Physician Allopathic & Osteopathic Physicians · License 31109 (AZ) Primary

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
875320	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.

Read the full guide → Validate an NPI →

Frequently asked questions

Is NPI 1841371523 active?

Yes, as of the latest NPPES snapshot, NPI 1841371523 is active (record last updated 2011-10-11).

How do I verify Ernestina Pelayo De Olivares's NPI record?

Cross-check NPI 1841371523 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Jeff D Wiese Lcsw Pllc Mental Health Counselor · Tucson, AZ NPI 1588736128 James S Gray MD Pllc Psychiatry Physician · Tucson, AZ NPI 1689721086 Daniel S Cohen MD PC Neurology Physician · Tucson, AZ NPI 1194872598 Ernestina Pelayo De Olivares MD Pllc Community/Behavioral Health Agency · Tucson, AZ NPI 1528293909 Jonathan Resille Psychiatric/Mental Health Nurse Practitioner · Tucson, AZ NPI 1326667270 Adam Streiff Psychiatric/Mental Health Nurse Practitioner · Tucson, AZ NPI 1053935510 Brightmind Psychiatry Pllc Psychiatric/Mental Health Nurse Practitioner · Tucson, AZ NPI 1285208769 Marisol Ramirez Psychiatric/Mental Health Nurse Practitioner · Tucson, AZ NPI 1538730312

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-10-11.