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DR. KRISTOFFER NING CHANG M.D.
NPI 1790761336
Specialist in San Francisco, CA

Active since December 15, 2005PECOS EnrolledAccepts Medicare Assignment
2100 WEBSTER ST, SUITE#328, SAN FRANCISCO, CA 94115(415) 923-3860(415) 600-3549 Get Directions Write a Review

NPPES record last updated: July 23, 2010. Verified against the NPPES registry weekly; last sync: August 09, 2026.

About Dr. Kristoffer Ning Chang M.d. NPPES

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

DR. KRISTOFFER NING CHANG M.D. (NPI 1790761336) is an individual specialist in San Francisco, California, licensed in California (G36914) and active in the NPI registry since December 2005. He is enrolled in Medicare PECOS and is a graduate of University Of Utah School Of Medicine (1977).

NPPES Registry Identity

NPI1790761336
Entity TypeIndividualMale
Primary Taxonomy174400000X
Provider Legal NameDR. KRISTOFFER NING CHANGCredential: M.D.
Location Address2100 WEBSTER ST, SUITE#328San Francisco, CA 94115-2373
Mailing Address2100 Webster St, Suite#328San Francisco, CA 94115-2378 · (415) 923-3860 · Fax (415) 600-3549
Phone(415) 923-3860
Fax(415) 600-3549
Sole ProprietorYes
Medical School CMSUniversity Of Utah School Of MedicineGraduated 1977
Enumeration DateDecember 15, 2005
Last NPPES UpdateJuly 23, 2010
✔ NPI 1790761336 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySpecialistOther Service Providers
Taxonomy Code174400000X
License✔ Licensed in CA · G36914
Definition
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree.
2100 WEBSTER ST, San Francisco, CA 94115
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Other Identifiers 2

Medicare UPINA46863
Medicare ID-Type Unspecified00G369140CA

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

Dr. Kristoffer Ning Chang M.d. 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 ID9032305248
PECOS Enrollment IDI20101130001248
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.

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
19 services12 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
17 services17 patients

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.

JACK C ROSE
Psychiatry & Neurology (Neurology)
2100 WEBSTER ST, 4TH FLOOR
SAN FRANCISCO, CA 94115
San Francisco County (415) 600-5760
RUSSELL D WOO M.D.
Thoracic Surgery (Cardiothoracic Vascular Surgery)
2100 WEBSTER ST
SAN FRANCISCO, CA 94115
San Francisco County (415) 923-3004
DR. STAFFORD J DUHN DDS
Dentist (General Practice)
2100 WEBSTER ST, SUITE 325
SAN FRANCISCO, CA 94115
San Francisco County (415) 923-3034
DR. RICKI POLLYCOVE M.D., M.H.S.
Obstetrics & Gynecology (Gynecology)
2100 WEBSTER ST, STE. 508
SAN FRANCISCO, CA 94115
San Francisco County (415) 923-3390
OLGA HIDCHENKO NP
Clinical Nurse Specialist (Women's Health)
2100 WEBSTER ST, SUITE 319
SAN FRANCISCO, CA 94115
San Francisco County (415) 923-3123
DR. DAVID R MINOR MD
Internal Medicine (Medical Oncology)
2100 WEBSTER ST, #326
SAN FRANCISCO, CA 94115
San Francisco County (415) 885-8600
DR. PEDRO JOSE RUIZ M.D., PH.D.
Internal Medicine (Rheumatology)
2100 WEBSTER ST, SUITE 112
SAN FRANCISCO, CA 94115
San Francisco County (415) 923-3060
JONATHAN KAPLAN MD INC
Plastic Surgery
2100 WEBSTER ST, SUITE 429
SAN FRANCISCO, CA 94115
San Francisco County (415) 923-3005

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 Kristoffer Chang's NPI number?

The NPI number for Kristoffer Chang is 1790761336. It was assigned to this individual provider in the NPPES registry on December 15, 2005.

Where is Kristoffer Chang located?

Kristoffer Chang practices at 2100 Webster St Suite#328, San Francisco, CA 94115. The listed phone number is (415) 923-3860.

What is Kristoffer Chang's specialty?

The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.

Is Kristoffer Chang enrolled in Medicare?

Yes. Kristoffer Chang 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.

When was this NPI record last updated?

The NPPES record for Kristoffer Chang was last updated on July 23, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.