Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Christine Marie Harrision Downey, DNP

Adult Health Nurse Practitioner in Tucson, AZ · enumerated 2015.

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

National Provider Identifier

1851774707

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Dr. Christine Marie Harrision Downey

Credential DNP

Sex Female

Practice address 5210 E Farness Dr, Tucson, AZ, 85712

Phone (520) 795-4100

Fax (520) 795-4224

Enumeration date Jul 9, 2015

Last updated in NPPES Apr 14, 2025

Taxonomy & licenses

363LG0600X Gerontology Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License AP7843 (AZ) Secondary

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License AP7843 (AZ) Primary

363LA2200X Adult Health Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 95005307 (CA) Secondary

DNP · Doctor of Nursing Practice: A clinical doctorate for advanced practice nurses. About the DNP 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.

Read the full guide → Validate an NPI →

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 Christine Downey?

Christine Downey is registered in NPPES with the primary taxonomy of Adult Health 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 →

Sean Mayo Emergency Medicine Physician · Tucson, AZ NPI 1700888203 Kathleen Mcleod Family Nurse Practitioner · Tucson, AZ NPI 1720054992 Phillip Citron Cardiovascular Disease Physician · Tucson, AZ NPI 1851349575 Southern Arizona Internal Medicine Pllc Internal Medicine Physician · Tucson, AZ NPI 1275565509 Steven Wool Internal Medicine Physician · Tucson, AZ NPI 1780789800 Ann Robinson Nurse Practitioner · Tucson, AZ NPI 1669569976 Cathy Dukes Acute Care Nurse Practitioner · Tucson, AZ NPI 1144317454 P Dennis Citron MD PC Cardiovascular Disease Physician · Tucson, AZ NPI 1558412072

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-04-14.