1. Home
  2. Directory
  3. California
  4. Whittier
  5. Internal Medicine
  6. NPI Profile

BRANDEN YOUSEF IREIFEJ MD
NPI 1811524853
Internal Medicine - Rheumatology in Whittier, CA

Active since March 26, 2020PECOS EnrolledAccepts Medicare Assignment
12456 WASHINGTON BLVD, WHITTIER, CA 90602(562) 758-6600(562) 758-6709 Get Directions Write a Review

NPPES record last updated: November 7, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Nov 7, 2025, Jun 12, 2025, Mar 26, 2020 (3 updates tracked since 2020).

About Branden Yousef Ireifej Md NPPES

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

BRANDEN YOUSEF IREIFEJ MD (NPI 1811524853) is an individual rheumatology provider in Whittier, California, licensed in California (A185206) and active in the NPI registry since March 2020. He is enrolled in Medicare PECOS and is a graduate of Other (2019).

NPPES Registry Identity

NPI1811524853
Entity TypeIndividualMale
Primary Taxonomy207RR0500X
Provider Legal NameBRANDEN YOUSEF IREIFEJCredential: MD
Location Address12456 WASHINGTON BLVDWhittier, CA 90602-1005
Mailing Address680 W 26th StUpland, CA 91784-1127
Phone(562) 758-6600
Fax(562) 758-6709
Sole ProprietorNo
Medical School CMSOtherGraduated 2019
Enumeration DateMarch 26, 2020
Last NPPES UpdateNovember 7, 20253 updates tracked since enumeration
NPPES CertifiedNovember 7, 2025
✔ NPI 1811524853 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal Medicine · RheumatologyAllopathic & Osteopathic Physicians
Taxonomy Code207RR0500X
License✔ Licensed in CA · A185206
Definition
An internist who treats diseases of joints, muscle, bones and tendons. This specialist diagnoses and treats arthritis, back pain, muscle strains, common athletic injuries and collagen diseases.
12456 WASHINGTON BLVD, Whittier, CA 90602
Open in Google Maps ↗

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Branden Yousef Ireifej Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8022478056
PECOS Enrollment IDI20240911003177
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.

Medicare Billing Reassignments

2

Medicare enrollment records show Branden Ireifej reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Amicus Arthritis And Osteoporosis Center, Inc
Same address
Rheumatology
12456 WASHINGTON BLVD
Whittier, CA 90602
  • Reassigned Medicare billing, California enrollment
  • 4 clinicians in this Medicare group
NPI 1578946109 (562) 758-6600
Southern California Permanente Medical Group
3.3 mi
Health Maintenance Organization
8800 WHITTIER BLVD
Pico Rivera, CA 90660
  • Reassigned Medicare billing, California enrollment
  • 13,921 clinicians in this Medicare group
NPI 1891287827 (877) 608-0044

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90602 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 8

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

ERICSSON TRIEU PA-C
Physician Assistant
12456 WASHINGTON BLVD
WHITTIER, CA 90602
Los Angeles County (562) 758-6600
MS. PATRICIA HELEN COX RNP
Nurse Practitioner (Family)
12456 WASHINGTON BLVD
WHITTIER, CA 90602
Los Angeles County (562) 693-4325
AMICUS ARTHRITIS AND OSTEOPOROSIS CENTER, INC
Internal Medicine (Rheumatology)
12456 WASHINGTON BLVD
WHITTIER, CA 90602
Los Angeles County (562) 758-6600
MRS. DEBORAH LEE BENT NP
Nurse Practitioner (Family)
12456 WASHINGTON BLVD
WHITTIER, CA 90602
Los Angeles County (562) 693-4325
MIMI YANG PA-C
Internal Medicine (Rheumatology)
12456 WASHINGTON BLVD
WHITTIER, CA 90602
Los Angeles County (562) 758-6600
JULIE HUANG
Physician Assistant
12456 WASHINGTON BLVD
WHITTIER, CA 90602
Los Angeles County (562) 758-6600
TIEN I KARLEEN SU M.D.
Internal Medicine (Rheumatology)
12456 WASHINGTON BLVD
WHITTIER, CA 90602
Los Angeles County (562) 758-6600
GILBERT F. GELFAND M.D.
Internal Medicine (Rheumatology)
12456 WASHINGTON BLVD
WHITTIER, CA 90602
Los Angeles County (562) 758-6600

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 Branden Ireifej's NPI number?

The NPI number for Branden Ireifej is 1811524853. It was assigned to this individual provider in the NPPES registry on March 26, 2020.

Where is Branden Ireifej located?

Branden Ireifej practices at 12456 Washington Blvd, Whittier, CA 90602. The listed phone number is (562) 758-6600.

What is Branden Ireifej's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Rheumatology, with taxonomy code 207RR0500X.

Is Branden Ireifej enrolled in Medicare?

Yes. Branden Ireifej is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organizations bill Medicare for Branden Ireifej's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Branden Ireifej reassigns Medicare benefits to 2 organizations: Amicus Arthritis And Osteoporosis Center, Inc (Whittier, CA) and Southern California Permanente Medical Group (Pico Rivera, CA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Branden Ireifej's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Branden Ireifej was last updated on November 7, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 months 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.