Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Rebecca Adele Millius, MD

Anatomic Pathology & Clinical Pathology Physician in Tucson, AZ · enumerated 2005.

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

National Provider Identifier

1285631481

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Registry record

Entity type Individual (Type 1)

Name Rebecca Adele Millius

Credential MD

Sex Female

Practice address 1501 N Campbell Ave, Tucson, AZ, 85724

Phone (520) 626-6830

Fax (520) 626-2521

Enumeration date Jul 1, 2005

Last updated in NPPES Jun 10, 2012

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License MD25336 (OR) Secondary

207ZP0102X Anatomic Pathology & Clinical Pathology Physician Allopathic & Osteopathic Physicians · License R73277 (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
275389	Medicaid	OR	-

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 1285631481 active?

Yes, as of the latest NPPES snapshot, NPI 1285631481 is active (record last updated 2012-06-10).

How do I verify Rebecca Millius's NPI record?

Cross-check NPI 1285631481 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-06-10.