GREGORY S. CHANG MD
NPI 1801974407
Anesthesiology in San Francisco, CA

Q: What is Gregory Chang's NPI number?

The NPI number for Gregory Chang is 1801974407. It was assigned to this individual provider in the NPPES registry on November 1, 2006.

Q: What is Gregory Chang's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Q: When was this NPI record last updated?

The NPPES record for Gregory Chang was last updated on December 9, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 years 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 November 01, 2006PECOS EnrolledAccepts Medicare Assignment

2200 OFARRELL ST, SAN FRANCISCO, CA 94115(415) 833-2000 Get Directions Write a Review

NPPES record last updated: December 9, 2021. Verified against the NPPES registry weekly; last sync: August 09, 2026.

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About Gregory S. Chang Md NPPES

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

GREGORY S. CHANG MD (NPI 1801974407) is an individual anesthesiology provider in San Francisco, California, licensed in California (C51149) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS and is a graduate of University Of Pittsburgh School Of Medicine (1994).

NPPES Registry Identity

NPI1801974407

Entity TypeIndividualMale

Primary Taxonomy207L00000X

Provider Legal NameGREGORY S. CHANGCredential: MD

Location Address2200 OFARRELL STSan Francisco, CA 94115-3357

Mailing Address1800 Harrison St Fl 7Oakland, CA 94612-3466 · (510) 625-6262

Phone(415) 833-2000

Sole ProprietorNo

Medical School CMSUniversity Of Pittsburgh School Of MedicineGraduated 1994

Enumeration DateNovember 1, 2006

Last NPPES UpdateDecember 9, 2021

✔ NPI 1801974407 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians

Taxonomy Code207L00000X

License✔ Licensed in CA · C51149

Definition

An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.

2200 OFARRELL ST, San Francisco, CA 94115

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Other Identifiers 1

Medicaid00C511490CA

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Gregory S. Chang 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 ID1456549252

PECOS Enrollment IDI20101221000397

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.

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