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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

MARY ANN ALONZO MAGALLANES DO
NPI 1952006512
Internal Medicine in Loma Linda, CA

Active since April 03, 2023PECOS Enrolled
11234 ANDERSON ST, GME OFFICE WESTERLY SUITE 'C', LOMA LINDA, CA 92354(909) 558-4074 Get Directions Write a Review

NPPES record last updated: September 21, 2026. Verified against the NPPES registry weekly; last sync: October 11, 2026.

Record update history: Sep 21, 2026, Sep 10, 2024, Apr 3, 2023 (3 updates tracked since 2023).

About Mary Ann Alonzo Magallanes Do NPPES

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

MARY ANN ALONZO MAGALLANES DO (NPI 1952006512) is an individual internal medicine provider in Loma Linda, California, licensed in California (20A23449) and active in the NPI registry since April 2023. She is enrolled in Medicare PECOS and is a graduate of Other (2023).

NPPES Registry Identity

NPI1952006512
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameMARY ANN ALONZO MAGALLANESCredential: DO
Location Address11234 ANDERSON ST, GME OFFICE WESTERLY SUITE 'C'Loma Linda, CA 92354-2804
Mailing Address11234 Anderson StLoma Linda, CA 92354-2804 · (909) 558-4074
Phone(909) 558-4074
Sole ProprietorYes
Medical School CMSOtherGraduated 2023
Enumeration DateApril 3, 2023
Last NPPES UpdateSeptember 21, 20263 updates tracked since enumeration
NPPES CertifiedSeptember 21, 2026
✔ NPI 1952006512 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in CA · 20A23449
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
11234 ANDERSON ST, Loma Linda, CA 92354
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mary Ann Alonzo Magallanes Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID5294290235
PECOS Enrollment IDI20260721002648
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 92354 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
$136.04 typical visit price
range $59.60 – $179.42
Typical copayment $34.01 (range $14.90 – $44.85)
Most-billed visit code 99204
Established Patient
$104.64 typical visit price
range $19.37 – $146.42
Typical copayment $26.16 (range $4.84 – $36.60)
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.

ELYSE LAUREN GURAN
Anesthesiology
11234 ANDERSON ST
LOMA LINDA, CA 92354
San Bernardino County (909) 558-4015
SAMUEL COOK CHAMBI
Anesthesiology
11234 ANDERSON ST
LOMA LINDA, CA 92354
San Bernardino County (909) 558-4015
LUIS MIGUEL OLMEDO TEMICH MD
General Practice
11234 ANDERSON ST
LOMA LINDA, CA 92354
San Bernardino County (909) 558-2822
HYUKJE SUNG MD, MA
Preventive Medicine (Occupational Medicine)
11234 ANDERSON ST
LOMA LINDA, CA 92354
San Bernardino County (909) 558-6491
JEFFERSON BRANCH RICHARDS
Student in an Organized Health Care Education/Training Program
11234 ANDERSON ST
LOMA LINDA, CA 92354
San Bernardino County (909) 558-4074
JOSEPH UNIS M.D.
Radiology (Diagnostic Radiology)
11234 ANDERSON ST
LOMA LINDA, CA 92354
San Bernardino County (909) 558-8311
MARINA LIU M.D.
Anesthesiology
11234 ANDERSON ST
LOMA LINDA, CA 92354
San Bernardino County (909) 558-4475
JOSEPH M WILKINSON CRNA
Nurse Anesthetist, Certified Registered
11234 ANDERSON ST
LOMA LINDA, CA 92354
San Bernardino County (909) 558-4475

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 Mary Ann Magallanes's NPI number?

The NPI number for Mary Ann Magallanes is 1952006512. It was assigned to this individual provider in the NPPES registry on April 3, 2023.

Where is Mary Ann Magallanes located?

Mary Ann Magallanes practices at 11234 Anderson St Gme Office Westerly Suite 'c', Loma Linda, CA 92354. The listed phone number is (909) 558-4074.

What is Mary Ann Magallanes's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Mary Ann Magallanes enrolled in Medicare?

Yes. Mary Ann Magallanes is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Mary Ann Magallanes was last updated on September 21, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 27 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.