Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Magdalena C Arenas, MD

Pulmonary Disease Physician in Pasadena, CA · enumerated 2006.

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

National Provider Identifier

1093761249

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)

Name Magdalena C Arenas

Credential MD

Sex Female

Practice address 800 Fairmount Ave, Pasadena, CA, 91105

Phone (626) 449-1199

Fax (626) 449-1166

Enumeration date May 26, 2006

Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207RP1001X Pulmonary Disease Physician Allopathic & Osteopathic Physicians · License A66947 (CA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD 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

Where does Magdalena Arenas practice?

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

What is the NPI number for Magdalena Arenas?

The National Provider Identifier (NPI) for Magdalena Arenas is 1093761249, a Type 1 (individual) record in the CMS NPPES registry.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.