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

ALEXANDRA CHANG
NPI 1770970949
Anesthesiology - Pain Medicine in San Francisco, CA

Q: What is Alexandra Chang's NPI number?

The NPI number for Alexandra Chang is 1770970949. It was assigned to this individual provider in the NPPES registry on April 24, 2015.

Q: What is Alexandra Chang's specialty?

The primary specialty registered for this NPI is Anesthesiology, specializing in Pain Medicine, with taxonomy code 207LP2900X.

Q: When was this NPI record last updated?

The NPPES record for Alexandra Chang was last updated on September 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.

Active since April 24, 2015PECOS Enrolled

4150 CLEMENT ST, SAN FRANCISCO, CA 94121(415) 221-4810 Get Directions Write a Review

NPPES record last updated: September 10, 2026. Verified against the NPPES registry weekly; last sync: September 13, 2026.

Record update history: Sep 10, 2026, Aug 9, 2021 (2 updates tracked since 2021).

On this page

About Alexandra Chang NPPES

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

ALEXANDRA CHANG (NPI 1770970949) is an individual pain medicine provider in San Francisco, California, licensed in California (144578) and active in the NPI registry since April 2015. She is enrolled in Medicare PECOS and maintains a secondary practice location in San Francisco.

NPPES Registry Identity

NPI1770970949

Entity TypeIndividualFemale

Primary Taxonomy207LP2900X

Provider Legal NameALEXANDRA CHANG

Location Address4150 CLEMENT STSan Francisco, CA 94121-1563

Mailing Address4150 Clement Street, Bldg 6 Rm 201, Mailcode 129San Francisco, CA 94121 · (415) 221-4810

Phone(415) 221-4810

Sole ProprietorNo

Enumeration DateApril 24, 2015

Last NPPES UpdateSeptember 10, 20262 updates tracked since enumeration

NPPES CertifiedSeptember 10, 2026

✔ NPI 1770970949 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiology · Pain MedicineAllopathic & Osteopathic Physicians

Taxonomy Code207LP2900X

License✔ Licensed in CA · 144578

Definition

An anesthesiologist who provides a high level of care, either as a primary physician or consultant, for patients experiencing problems with acute, chronic and/or cancer pain in both hospital and ambulatory settings. Patient care needs are also coordinated with other specialists.

4150 CLEMENT ST, San Francisco, CA 94121

Open in Google Maps ↗

Secondary Practice Location 1

Location 13126 Cabrillo StSan Francisco, CA 94121-3508 · Phone (949) 246-9383

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Alexandra Chang 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.

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.

MR. SHANNON KISSINGER MSW

Social Worker