Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Barbara L Caldwell, M.D.

Family Medicine Physician in Tucson, AZ · enumerated 2005.

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

National Provider Identifier

1861475345

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Registry record

Entity type Individual (Type 1)

Name Dr. Barbara L Caldwell

Credential M.D.

Sex Female

Practice address 551 W Magee Rd, Tucson, AZ, 85704

Phone (520) 498-6467

Fax (520) 531-1424

Enumeration date Nov 29, 2005

Last updated in NPPES Jul 21, 2011

Taxonomy & licenses

207Q00000X Family Medicine Physician Allopathic & Osteopathic Physicians · License 23979 (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
358144	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

Where does Barbara Caldwell practice?

The practice location on file with NPPES is in Tucson, AZ. Providers can have multiple locations; NPPES lists the primary practice address.

What is the NPI number for Barbara Caldwell?

The National Provider Identifier (NPI) for Barbara Caldwell is 1861475345, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-07-21.