DR. PETER D CHANG MD
NPI 1841530458
Radiology - Neuroradiology in San Francisco, CA

Q: What is Peter Chang's NPI number?

The NPI number for Peter Chang is 1841530458. It was assigned to this individual provider in the NPPES registry on February 18, 2013.

Q: What is Peter Chang's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Neuroradiology, with taxonomy code 2085N0700X.

Q: When was this NPI record last updated?

The NPPES record for Peter Chang was last updated on March 17, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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 February 18, 2013PECOS EnrolledAccepts Medicare Assignment

505 PARNASSUS AVE, SAN FRANCISCO, CA 94143(415) 476-1000 Get Directions Write a Review

NPPES record last updated: March 17, 2018. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Mar 17, 2018, Aug 16, 2017 (2 updates tracked since 2017).

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About Dr. Peter D Chang Md NPPES

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

DR. PETER D CHANG MD (NPI 1841530458) is an individual neuroradiology provider in San Francisco, California, licensed in California (A150603) and active in the NPI registry since February 2013. He is enrolled in Medicare PECOS, maintains a secondary practice location in New York, and is a graduate of Northwestern University Feinberg Medical School (2012).

NPPES Registry Identity

NPI1841530458

Entity TypeIndividualMale

Primary Taxonomy2085N0700X

Provider Legal NameDR. PETER D CHANGCredential: MD

Location Address505 PARNASSUS AVESan Francisco, CA 94143-2204

Mailing Address2287 Johnson Ave, Apt #6fBronx, NY 10463-6400

Phone(415) 476-1000

Sole ProprietorYes

Medical School CMSNorthwestern University Feinberg Medical SchoolGraduated 2012

Enumeration DateFebruary 18, 2013

Last NPPES UpdateMarch 17, 20182 updates tracked since enumeration

✔ NPI 1841530458 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyRadiology · NeuroradiologyAllopathic & Osteopathic Physicians

Taxonomy Code2085N0700X

License✔ Licensed in CA · A150603

Definition

A radiologist who diagnoses and treats diseases utilizing imaging procedures as they relate to the brain, spine and spinal cord, head, neck and organs of special sense in adults and children.

Also ListedRadiology · Diagnostic RadiologyTaxonomy 2085R0202X · License A150603 (CA)

505 PARNASSUS AVE, San Francisco, CA 94143

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Secondary Practice Location 1

Location 1180 Fort Washington Ave, Harkness Pavillion, Room 313New York, NY 10032-3722 · Phone (212) 305-9729

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

Dr. Peter D 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 ID1658644315

PECOS Enrollment IDI20170831003231

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 Reassignment

Medicare enrollment records show Peter Chang reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Uc Regents

376 mi

Diagnostic Radiology

101 THE CITY DR S
Orange, CA 92868

Reassigned Medicare billing, California enrollment
202 clinicians in this Medicare group

NPI 1346298528 (714) 456-8068

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

Areas of Expertise CMS Part B claims 13

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.

Injection, gadobutrol, 0.1 ml A9585

Gadobutrol is a contrast agent used during MRI scans to help provide clearer images. It's injected into your vein before the scan. This helps doctors to see certain areas more clearly for better diagnosis. It's generally safe with few side effects.

320 services37 patients

Ct scan head or brain without contrast 70450

A CT scan of the head or brain without contrast is a non-invasive imaging procedure. It uses X-rays to create detailed pictures of your brain, skull, and other structures inside your head. It helps to detect conditions like strokes, tumors, or injuries. No dye (contrast) is used in this test.

113 services105 patients

Mri scan of brain before and after contrast 70553

An MRI scan of the brain, both before and after contrast, helps visualize different brain structures. Initially, images are taken without a contrast agent. Then, a safe dye is injected which helps highlight certain areas, providing clearer, more detailed images.

64 services62 patients

Mri scan of brain before and after contrast 70553

38 services38 patients

Ct scan of blood vessels of neck with contrast 70498

A CT scan of the neck's blood vessels with contrast is a diagnostic procedure. It uses X-rays and a special dye to create detailed images of your neck's blood vessels. This helps doctors detect issues such as blockages or abnormalities.

37 services37 patients

Ct scan of upper spine without contrast 72125

A CT scan of the upper spine without contrast is a non-invasive imaging test that uses X-rays to capture detailed images of your neck and upper back. It helps in identifying issues like fractures, tumors, or infections. No dye (contrast) is used in this scan.

35 services35 patients

Mri scan of brain without contrast 70551

An MRI scan of the brain without contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to create detailed images of your brain. It helps in detecting abnormalities like tumors, stroke, inflammation, or infection.

28 services28 patients

Ct scan of blood vessels of head with contrast 70496

A CT scan of the head's blood vessels with contrast is a diagnostic procedure. A special dye (contrast) is injected into your body to make the blood vessels visible on the scan. This helps identify issues like blockages or abnormalities in your head's blood vessels.

22 services22 patients

Mri scan of brain without contrast 70551

20 services20 patients

Ct scan of face without contrast 70486

A CT scan of the face without contrast is a non-invasive imaging procedure. It uses X-rays to create detailed pictures of your face, including bones, soft tissues, and blood vessels. It's often used to diagnose diseases, injuries, or abnormalities. No contrast dye is used in this procedure.

16 services16 patients

Mri scan of upper spinal canal without contrast 72141

An MRI scan of the upper spinal canal without contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to create detailed images of your upper spine. This helps doctors identify issues such as injuries, infections or diseases. No dye is used.

15 services15 patients

Mri scan of upper spinal canal before and after contrast 72156

An MRI scan of the upper spinal canal before and after contrast is a non-invasive imaging test. It uses magnetic fields and radio waves to create detailed images of your spine. Contrast dye is injected to enhance these images, providing clearer visuals for accurate diagnosis.

12 services12 patients

Ct scan of soft tissue of neck with contrast 70491

A CT scan of the neck with contrast is a non-invasive imaging procedure. A special dye is administered to highlight the soft tissues in your neck, making them easier to see. This helps detect issues like infections, tumors, or other abnormalities.

11 services11 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.

CATHERINE RAMSDELL NNP

Nurse Practitioner (Neonatal)

505 PARNASSUS AVE
SAN FRANCISCO, CA 94143

San Francisco County (415) 353-1000

DR. CLAUDIO ANDRES BRAVO CARRILLO M.D.

Internal Medicine (Advanced Heart Failure and Transplant Cardiology)

505 PARNASSUS AVE
SAN FRANCISCO, CA 94143

San Francisco County (415) 502-4243

MAURICIO JALIFE BUCAY M.D

Hospitalist

505 PARNASSUS AVE
SAN FRANCISCO, CA 94143

San Francisco County (415) 750-4994

EMMA B SHAK M.D.

Student in an Organized Health Care Education/Training Program

505 PARNASSUS AVE
SAN FRANCISCO, CA 94143

San Francisco County (415) 476-1528

DR. ADRIANA A.T. MARTIN M.D., PH.D.

Internal Medicine

505 PARNASSUS AVE
SAN FRANCISCO, CA 94143

San Francisco County (415) 514-7288

WILLIAM JAMES DEARDORFF

Internal Medicine (Geriatric Medicine)

505 PARNASSUS AVE, 15 LONG
SAN FRANCISCO, CA 94143

San Francisco County (415) 406-1417

KEERTHANA REDDY BANALA

Student in an Organized Health Care Education/Training Program

505 PARNASSUS AVE
SAN FRANCISCO, CA 94143

San Francisco County (415) 514-7288

ROBERT CHRISTIAN WENZ

Nurse Anesthetist, Certified Registered

505 PARNASSUS AVE
SAN FRANCISCO, CA 94143

San Francisco County (415) 353-8054

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 Peter Chang's NPI number?

The NPI number for Peter Chang is 1841530458. It was assigned to this individual provider in the NPPES registry on February 18, 2013.

Where is Peter Chang located?

Peter Chang practices at 505 Parnassus Ave, San Francisco, CA 94143. The listed phone number is (415) 476-1000.

What is Peter Chang's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Neuroradiology, with taxonomy code 2085N0700X.

Is Peter Chang enrolled in Medicare?

Yes. Peter 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.

Which organization bills Medicare for Peter Chang's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Peter Chang reassigns Medicare benefits to Uc Regents (Orange, CA). The 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 Peter Chang'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 Peter Chang was last updated on March 17, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.