1. Home
  2. Directory
  3. California
  4. Pasadena
  5. Internal Medicine
  6. NPI Profile
Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MAGDALENA C ARENAS MD
NPI 1093761249
Internal Medicine - Pulmonary Disease in Pasadena, CA

Active since May 26, 2006PECOS Enrolled
800 FAIRMOUNT AVE, PASADENA, CA 91105(626) 449-1199(626) 449-1166 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About Magdalena C Arenas Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MAGDALENA C ARENAS MD (NPI 1093761249) is an individual pulmonary disease provider in Pasadena, California, licensed in California (A66947) and active in the NPI registry since May 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1093761249
Entity TypeIndividualFemale
Primary Taxonomy207RP1001X
Provider Legal NameMAGDALENA C ARENASCredential: MD
Location Address800 FAIRMOUNT AVEPasadena, CA 91105-3152
Mailing Address800 Fairmount Ave, Ste 205Pasadena, CA 91105-3150 · (626) 449-1199 · Fax (626) 449-1166
Phone(626) 449-1199
Fax(626) 449-1166
Sole ProprietorNo
Enumeration DateMay 26, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1093761249 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · Pulmonary DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RP1001X
License✔ Licensed in CA · A66947
Definition
An internist who treats diseases of the lungs and airways. The pulmonologist diagnoses and treats cancer, pneumonia, pleurisy, asthma, occupational and environmental diseases, bronchitis, sleep disorders, emphysema and other complex disorders of the lungs.
800 FAIRMOUNT AVE, Pasadena, CA 91105
Open in Google Maps ↗

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Magdalena C Arenas Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 91105 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$142.39 typical visit price
range $62.96 – $187.60
Typical copayment $35.59 (range $15.74 – $46.90)
Most-billed visit code 99204
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. RUBY BATIN M.D.
Pediatrics
800 FAIRMOUNT AVE, STE 110
PASADENA, CA 91105
Los Angeles County (626) 795-7051
DR. JASON REGINALD SPEARS D.D.S.
Dentist
800 FAIRMOUNT AVE, SUITE 203
PASADENA, CA 91105
Los Angeles County (626) 792-1344
MARK POWELL MD
Pediatrics
800 FAIRMOUNT AVE, SUITE 415
PASADENA, CA 91105
Los Angeles County (626) 449-8440
CHRISTIAAN P HALLMAN M.D.
Dermatology
800 FAIRMOUNT AVE, SUITE 310
PASADENA, CA 91105
Los Angeles County (626) 795-2007
MICHAEL PAUL MILLER, MD, INC.
Ophthalmology
800 FAIRMOUNT AVE, SUITE 101
PASADENA, CA 91105
Los Angeles County (626) 585-8700
LISA P. URIBE, M.D., INC.
Internal Medicine
800 FAIRMOUNT AVE, SUITE 210
PASADENA, CA 91105
Los Angeles County (626) 243-2221
MELINDA MEDEIROS NP
Nurse Practitioner (Acute Care)
800 FAIRMOUNT AVE, SUITE 220
PASADENA, CA 91105
Los Angeles County (626) 486-0181
GLENN SCHLUNDT MD
Specialist
800 FAIRMOUNT AVE, SUITE 415
PASADENA, CA 91105
Los Angeles County (626) 449-8440

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Magdalena Arenas's NPI number?

The NPI number for Magdalena Arenas is 1093761249. It was assigned to this individual provider in the NPPES registry on May 26, 2006.

Where is Magdalena Arenas located?

Magdalena Arenas practices at 800 Fairmount Ave, Pasadena, CA 91105. The listed phone number is (626) 449-1199.

What is Magdalena Arenas's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Pulmonary Disease, with taxonomy code 207RP1001X.

Is Magdalena Arenas enrolled in Medicare?

Yes. Magdalena Arenas is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Magdalena Arenas was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 39 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.