RACHEL SI-WEN CHANG MD
NPI 1891435939
Internal Medicine in Los Angeles, CA

Active since March 29, 2022PECOS Enrolled
1450 SAN PABLO ST STE 3000, LOS ANGELES, CA 90033(323) 442-8415 Get Directions Write a Review

NPPES record last updated: September 30, 2025. Verified against the NPPES registry weekly; last sync: July 19, 2026.

About Rachel Si-wen Chang Md NPPES

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

RACHEL SI-WEN CHANG MD (NPI 1891435939) is an individual internal medicine provider in Los Angeles, California, licensed in California (A187604) and active in the NPI registry since March 2022. She is enrolled in Medicare PECOS and is a graduate of Vanderbilt University School Of Medicine (2022).

NPPES Registry Identity

NPI1891435939
Entity TypeIndividualFemale
Primary Taxonomy207R00000X
Provider Legal NameRACHEL SI-WEN CHANGCredential: MD
Location Address1450 SAN PABLO ST STE 3000Los Angeles, CA 90033-5332
Mailing AddressPo Box 31309Los Angeles, CA 90031-0309 · (323) 442-5100
Sole ProprietorNo
Medical School CMSVanderbilt University School Of MedicineGraduated 2022
Enumeration DateMarch 29, 2022
Last NPPES UpdateSeptember 30, 2025
NPPES CertifiedSeptember 30, 2025
NPI 1891435939 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 · A187604
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.

1450 SAN PABLO ST STE 3000, Los Angeles, CA 90033

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

Enrolled in Medicare (PECOS)

Rachel Si-wen Chang Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID446621650
PECOS Enrollment IDI20250924003708
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 90033 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 3

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

Internal Medicine (Hospice and Palliative Medicine)
1450 SAN PABLO ST STE 3000
LOS ANGELES, CA 90033
Internal Medicine
1450 SAN PABLO ST STE 3000
LOS ANGELES, CA 90033
Internal Medicine (Hospice and Palliative Medicine)
1450 SAN PABLO ST STE 3000
LOS ANGELES, CA 90033

Frequently Asked Questions

The NPI number assigned to this healthcare provider is 1891435939, enumerated as an "individual" on March 29, 2022.

The provider is located at 1450 SAN PABLO ST STE 3000 LOS ANGELES, CA 90033 and the phone number is (323) 442-8415.

Internal Medicine with taxonomy code 207R00000X.