CRYSTAL CHANG M.D.
NPI 1518253012
Radiology - Diagnostic Radiology in Novato, CA

Q: What is Crystal Chang's NPI number?

The NPI number for Crystal Chang is 1518253012. It was assigned to this individual provider in the NPPES registry on June 22, 2011.

Q: What is Crystal Chang's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Q: When was this NPI record last updated?

The NPPES record for Crystal Chang was last updated on December 2, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 months 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 June 22, 2011PECOS Enrolled

180 ROWLAND WAY, NOVATO, CA 94945(415) 290-1500(415) 209-1501 Get Directions Write a Review

NPPES record last updated: December 2, 2024. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Dec 2, 2024, Mar 12, 2019 (2 updates tracked since 2019).

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About Crystal Chang M.d. NPPES

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

CRYSTAL CHANG M.D. (NPI 1518253012) is an individual diagnostic radiology provider in Novato, California, licensed in California (A140488) and active in the NPI registry since June 2011. She is enrolled in Medicare PECOS, maintains a secondary practice location in Walnut Creek, and is a graduate of Other (2011).

NPPES Registry Identity

NPI1518253012

Entity TypeIndividualFemale

Primary Taxonomy2085R0202X

Provider Legal NameCRYSTAL CHANGCredential: M.D.

Location Address180 ROWLAND WAYNovato, CA 94945-5009

Mailing Address500 Redwood Blvd Ste 300Novato, CA 94947-6921 · (415) 884-3415 · Fax (415) 883-0877

Phone(415) 290-1500

Fax(415) 209-1501

Sole ProprietorYes

Medical School CMSOtherGraduated 2011

Enumeration DateJune 22, 2011

Last NPPES UpdateDecember 2, 20242 updates tracked since enumeration

NPPES CertifiedDecember 2, 2024

✔ NPI 1518253012 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0202X

License✔ Licensed in CA · A140488

Definition

A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.

180 ROWLAND WAY, Novato, CA 94945

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Secondary Practice Location 1

Location 12637 Shadelands DrWalnut Creek, CA 94598-2512 · Phone (925) 329-3710

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Crystal Chang M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID9436444163

PECOS Enrollment IDI20160819001770, I20260119000382

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 Reassignments

Medicare enrollment records show Crystal Chang reassigns Medicare billing to 7 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Prima Medical Foundation

3.8 mi

Clinic/Center

4 HAMILTON LANDING, SUITE 100
Novato, CA 94949

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

NPI 1811217946 (415) 884-1840

Bay Imaging Consultants Medical Group Inc

18 mi

Diagnostic Radiology

300 HOSPITAL DR
Vallejo, CA 94589

Reassigned Medicare billing, California and Hawaii enrollments
181 clinicians in this Medicare group

NPI 1164678058 (925) 296-7156

Magnetic Imaging Affiliates, LLC

24 mi

Diagnostic Radiology

5730 TELEGRAPH AVE
Oakland, CA 94609

Reassigned Medicare billing, California and Hawaii enrollments
158 clinicians in this Medicare group

NPI 1487040770 (510) 204-2744

John Muir Trauma Physicians Billing Service

31 mi

Hospitalist

1601 YGNACIO VALLEY RD
Walnut Creek, CA 94598

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

NPI 1093864837 (925) 947-5331

John Muir Magnetic Imaging Center

31 mi

Diagnostic Radiology

1601 YGNACIO VALLEY RD
Walnut Creek, CA 94598

Reassigned Medicare billing, California and Hawaii enrollments
129 clinicians in this Medicare group

NPI 1235184110 (925) 296-7156

Bay Area Surgical Specialists Inc A Medical Corporation

32 mi

Magnetic Resonance Imaging (MRI)

2637 SHADELANDS DR
Walnut Creek, CA 94598

Reassigned Medicare billing, California enrollment
Medicare enrollment name: Bass Medical Group
347 clinicians in this Medicare group

NPI 1023501905 (925) 329-3710

Epic Care

43 mi

Multi-Specialty

4721 DALLAS RANCH RD
Antioch, CA 94531

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

NPI 1780107797 (925) 778-0679

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 32

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.

3,200 services37 patients

Injection, gadoterate meglumine, 0.1 ml A9575

Gadoterate meglumine is a contrast agent used in MRI scans to help visualize certain areas of your body more clearly. It's injected into your bloodstream, typically through a vein in your arm, and helps doctors get more detailed images.

2,150 services14 patients

Screening mammography 77067

Screening mammography is a preventative measure that uses low-dose X-rays to take images of the chest area. It's a key tool in early detection of abnormalities, helping to identify issues before they become symptomatic. It is recommended annually for certain age groups.

748 services748 patients

Screening 3d breast mammography 77063

Screening 3D breast mammography is a procedure that uses low-dose X-rays to create detailed images of the breast. This allows for early detection of any unusual changes or growths. It's a non-invasive, outpatient procedure that typically takes about 30 minutes.

744 services744 patients

Screening mammography 77067

376 services373 patients

Screening 3d breast mammography 77063

359 services356 patients

X-ray of chest, 1 view 71045

A chest X-ray, 1 view, is a quick, painless test that produces images of the structures within your chest, such as your heart, lungs, and blood vessels. It helps in diagnosing conditions like pneumonia, heart problems, or lung cancer. You'll stand in front of a machine that emits X-rays, which pass through your body to create the image.

159 services156 patients

Diagnostic mammography of 1 breast 77065

Diagnostic mammography of 1 breast is a detailed imaging test that allows doctors to closely examine a specific area in the breast. It's often used when a routine screening reveals an abnormality. This test can help identify any unusual changes or issues.

116 services109 patients

Limited ultrasound scan of 1 breast 76642

A limited ultrasound scan of one breast is a non-invasive imaging test. It uses sound waves to create pictures of the inside of your breast. It helps identify any unusual growths or changes. It's safe, quick, and typically painless.

93 services92 patients

Mri scan of both breasts 77049

An MRI scan of both breasts is a non-invasive procedure using magnetic fields and radio waves to create detailed images of your chest area. This aids in detecting any abnormalities, ensuring your health and well-being.

67 services59 patients

Diagnostic mammography of both breasts 77066

Diagnostic mammography involves using special imaging technology to capture detailed images of both breasts. This procedure helps in identifying any unusual changes or abnormalities. It's a crucial step in ensuring breast health and early detection of potential issues.

62 services62 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.

48 services46 patients

Ct scan of chest without contrast 71250

A CT scan of the chest without contrast is a non-invasive imaging procedure. It uses special X-ray equipment to produce detailed images of your chest area, including your lungs and heart. It can help diagnose conditions such as lung diseases or heart disorders. It doesn't involve any dyes or contrast agents.

43 services43 patients

Ct scan of abdomen and pelvis with contrast 74177

A CT scan of the abdomen and pelvis with contrast is an imaging procedure. A special dye, called contrast, is used to make certain areas more visible. This can help identify issues such as infections, tumors, or other abnormalities. The procedure is painless and usually takes about 30 minutes.

42 services42 patients

Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) G0279

Diagnostic digital breast tomosynthesis is a 3D imaging test that allows doctors to examine your breast tissue layer by layer. It's performed on one or both sides. It helps in detecting abnormalities more accurately. It's often done in addition to other tests.

39 services39 patients

Limited ultrasound scan of 1 breast 76642

36 services35 patients

Diagnostic mammography of 1 breast 77065

35 services32 patients

X-ray of surgical specimen 76098

An X-ray of a surgical specimen involves taking detailed images of the tissue or organ removed during surgery. This helps in examining the specimen more closely to understand the disease better. It's a safe, non-invasive procedure, providing valuable insights to your healthcare team.

30 services24 patients

Mri scan of both breasts 77049

30 services30 patients

Biopsy of breast and placement of locating device using x-ray with needle, first growth 19081

A biopsy of the breast involves extracting a small sample of tissue for examination. A locating device placement, guided by x-ray, aids in identifying the exact spot of the first growth. A needle is used in both processes to ensure precision and minimal discomfort.

25 services25 patients

X-ray of abdomen, 1 view 74018

An X-ray of the abdomen, 1 view, is a quick and painless imaging test. It uses a small amount of radiation to produce images of the structures in your abdomen, such as the stomach, liver, and intestines. This can help identify issues like blockages, infections, or injuries.

24 services22 patients

Biopsy of breast and placement of locating device using ultrasound, first growth 19083

A breast biopsy with locating device placement involves taking a small sample from an unusual growth, using ultrasound for precise targeting. This sample is studied for any abnormal cells. A locating device is also placed to mark the area for future reference.

22 services22 patients

Ct scan of chest with contrast 71260

A CT scan of the chest with contrast is an imaging procedure. A special dye (contrast) is used to highlight specific areas in your body, providing clearer pictures of your chest. This helps in diagnosing conditions related to your lungs, heart, and other chest structures.

21 services21 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.

21 services21 patients

Diagnostic digital breast tomosynthesis, unilateral or bilateral (list separately in addition to 77065 or 77066) G0279

21 services21 patients

Ct scan of abdomen and pelvis without contrast 74176

A CT scan of the abdomen and pelvis is a non-invasive medical test. It uses special X-ray equipment to create detailed images of your abdominal and pelvic areas. This helps doctors examine organs, tissues, and vessels. No contrast dye is used in this procedure.

20 services20 patients

Diagnostic mammography of both breasts 77066

20 services20 patients

X-ray of chest, 2 views 71046

A chest X-ray, 2 views, is a quick, painless test that creates pictures of the structures inside your chest, such as your heart, lungs, and blood vessels. Two different angles are used to get a comprehensive view. This helps in diagnosing conditions like pneumonia, heart problems, or lung cancer.

18 services18 patients

Ct scan of blood vessels and grafts of heart with contrast 75574

A CT scan of the heart's blood vessels and grafts with contrast is a diagnostic test. A special dye (contrast) is injected into your veins, which helps create clear images of your heart's vessels and grafts. This helps doctors detect blockages or other abnormalities.

18 services18 patients

Ct scan of blood vessels of chest with contrast 71275

A CT scan of the chest with contrast is a non-invasive imaging test. It uses X-rays and a special dye to get detailed images of your blood vessels in the chest. This helps in diagnosing conditions related to heart and lungs.

14 services14 patients

Complete ultrasound scan behind abdominal cavity 76770

A complete ultrasound scan behind the abdominal cavity is a non-invasive imaging procedure. It uses sound waves to create pictures of the structures and organs located at the back of your abdomen. It helps in diagnosing health conditions and monitoring ongoing treatments.

12 services12 patients

Placement of locating device in breast using imaging guidance, first growth 19281

This procedure involves placing a tiny device in the breast using image guidance. The device helps pinpoint the exact location of the first growth. It's a non-invasive method that aids in precise treatment planning.

11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94945 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

$104.67 typical visit price

range $69.07 – $202.63

Typical copayment $26.16 (range $17.26 – $50.65)

Most-billed visit code 99203

Established Patient

$85.00 typical visit price

range $23.44 – $166.64

Typical copayment $21.25 (range $5.86 – $41.66)

Most-billed visit code 99213

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 20

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

DR. RANJIT SINGH HUNDAL M.D.

Internal Medicine

180 ROWLAND WAY, NOVATO COMMUNITY HOSPITAL 180 ROWLAND WAY
NOVATO, CA 94945

Marin County (415) 209-1300

DR. KEVIN LEE JUNUS DO

Radiology (Diagnostic Radiology)