SIVA P RAMAN
NPI 1295840924
Radiology - Diagnostic Radiology in Walnut Creek, CA

Q: What is Siva Raman's NPI number?

The NPI number for Siva Raman is 1295840924. It was assigned to this individual provider in the NPPES registry on August 21, 2006.

Q: What is Siva Raman'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 Siva Raman was last updated on March 13, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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 August 21, 2006PECOS Enrolled

90.81/100

CMS Quality Rating

2125 OAK GROVE RD, STE 200, WALNUT CREEK, CA 94598(410) 955-5173 Get Directions Write a Review

NPPES record last updated: March 13, 2017. Verified against the NPPES registry weekly; last sync: October 25, 2026.

On this page

About Siva P Raman NPPES

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

SIVA P RAMAN (NPI 1295840924) is an individual diagnostic radiology provider in Walnut Creek, California, licensed in Maryland (D72707) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS and is a graduate of Johns Hopkins University School Of Medicine (2005).

NPPES Registry Identity

NPI1295840924

Entity TypeIndividualMale

Primary Taxonomy2085R0202X

Provider Legal NameSIVA P RAMAN

Location Address2125 OAK GROVE RD, STE 200Walnut Creek, CA 94598-2520

Mailing Address2125 Oak Grove Rd, Ste 200Walnut Creek, CA 94598-2520 · (410) 955-5173

Phone(410) 955-5173

Sole ProprietorNo

Medical School CMSJohns Hopkins University School Of MedicineGraduated 2005

Enumeration DateAugust 21, 2006

Last NPPES UpdateMarch 13, 2017

✔ NPI 1295840924 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0202X

Licenses✔ Licensed in MD · D72707✔ Licensed in WA · ML20008696

Definition

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

2125 OAK GROVE RD, Walnut Creek, CA 94598

Open in Google Maps ↗

Other Identifiers 2

Medicaid446620900MD

Medicare PIN225444YSJMD

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Siva P Raman is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID4880725282

PECOS Enrollment IDI20100629000595

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 Siva Raman reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Bay Imaging Consultants Medical Group Inc

Same address

Diagnostic Radiology

2125 OAK GROVE RD STE 200
Walnut Creek, CA 94598

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

NPI 1831756139 (925) 296-7150

Michael P Sherman MD Phd, A Medical Corporation

0.7 mi

Hematology & Oncology

500 LENNON LN
Walnut Creek, CA 94598

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

NPI 1831201912 (925) 939-9610

John Muir Magnetic Imaging Center

1.7 mi

Diagnostic Radiology

1601 YGNACIO VALLEY RD
Walnut Creek, CA 94598

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

NPI 1235184110 (925) 296-7156

John Muir Trauma Physicians Billing Service

1.7 mi

Trauma Surgery

1601 YGNACIO VALLEY RD
Walnut Creek, CA 94598

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

NPI 1962551861 (925) 947-5331

Magnetic Imaging Affiliates, LLC

15 mi

Diagnostic Radiology

5730 TELEGRAPH AVE
Oakland, CA 94609

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

NPI 1487040770 (510) 204-2744

Solano Diagnostics Partners, A Calif Limited Partnership

21 mi

Diagnostic Radiology

4500 BUSINESS CENTER DR
Fairfield, CA 94534

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

NPI 1972006534 (855) 820-5256

Queens North Hawaii Community Hospital

2,362 mi

General Acute Care Hospital

67-1125 MAMALAHOA HWY
Kamuela, HI 96743

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

NPI 1477559029 (808) 881-4400

Queens University Medical Group

2,421 mi

Multi-Specialty

1301 PUNCHBOWL ST
Honolulu, HI 96813

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

NPI 1891441382 (808) 691-1000

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 62

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.

29,000 services318 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.

759 services699 patients

Mri scan of pelvis before and after contrast 72197

An MRI scan of the pelvis before and after contrast is a non-invasive imaging technique. It uses magnetic fields and radio waves to capture detailed images of your lower abdomen. Contrast dye, safe for the body, improves image clarity. This helps detect abnormalities more accurately.

454 services258 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.

318 services313 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.

240 services236 patients

Mri scan of abdomen before and after contrast 74183

An MRI scan of the abdomen before and after contrast provides detailed images of your abdominal organs. Initially, images are taken without a contrast agent. Then, a safe dye is administered, usually via an IV, to highlight certain areas, giving a clearer picture to help diagnose various conditions.

219 services127 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.

153 services153 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.

141 services139 patients

Mri scan of pelvis before and after contrast 72197

113 services113 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.

102 services101 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.

95 services94 patients

Nuclear medicine study from skull base to mid-thigh with ct scan 78815

A nuclear medicine study from skull base to mid-thigh with a CT scan involves using a small amount of radioactive material and CT imaging to examine body tissues and organs. This helps detect any abnormalities by providing detailed images of the body's internal structure.

94 services90 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.

92 services90 patients

X-ray of knee, 4 or more views 73564

An X-ray of the knee, 4 or more views, is a non-invasive imaging test. It involves capturing multiple images of your knee from different angles. This helps in diagnosing conditions such as fractures, arthritis, or infections. The procedure is quick and painless.

85 services69 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.

75 services74 patients

X-ray of shoulder, minimum of 2 views 73030

An X-ray of the shoulder, with a minimum of 2 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of your shoulder bones. This helps in diagnosing conditions like fractures, arthritis, or other abnormalities. The procedure is quick and painless.

71 services67 patients

Mri scan of abdomen before and after contrast 74183

69 services68 patients

Limited ultrasound scan of abdomen 76705

A limited ultrasound scan of the abdomen is a non-invasive imaging test. It uses sound waves to produce images of the abdominal organs such as the liver, gallbladder, spleen, pancreas, and kidneys. This helps to identify any abnormalities or issues.

69 services69 patients

X-ray of hip, 2-3 views 73502

An X-ray of the hip with 2-3 views is a non-invasive imaging test. It uses a small amount of radiation to produce pictures of the hip joint. These images help in diagnosing conditions like fractures, arthritis, or other abnormalities. The process is quick and painless.

67 services66 patients

Nuclear medicine study from skull base to mid-thigh with ct scan 78815

60 services60 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.

58 services58 patients

Complete ultrasound scan of abdomen 76700

A complete ultrasound scan of the abdomen is a non-invasive imaging procedure. It uses sound waves to produce images of the organs in your abdomen, such as the liver, gallbladder, spleen, pancreas, and kidneys. It helps in diagnosing, monitoring, and planning treatments.

55 services55 patients

Ultrasound scan of head and neck soft tissue 76536

An ultrasound scan of the head and neck soft tissue is a non-invasive procedure that uses sound waves to create images of the soft tissues in these areas. It helps identify any abnormalities or issues, such as tumors, cysts, or infections. It's painless and doesn't involve radiation.

51 services51 patients

Mri scan of pelvis without contrast 72195

An MRI scan of the pelvis without contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to create detailed pictures of the lower part of your body. This helps doctors to identify any abnormalities or issues in that area.

48 services25 patients

Ct scan of abdomen and pelvis with contrast 74177

48 services48 patients

X-ray of foot, minimum of 3 views 73630

An X-ray of the foot, minimum of 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the bones and tissues in your foot. This helps to identify fractures, infections, or other abnormalities. Multiple views ensure a comprehensive examination.

42 services40 patients

X-ray of lower and sacral spine, minimum of 4 views 72110

An X-ray of the lower and sacral spine involves capturing images of your lower back and tailbone area. It helps in identifying issues like fractures, arthritis, or other abnormalities. At least four different angles or 'views' are taken to get a comprehensive picture.

40 services40 patients

X-ray of upper spine, 4-5 views 72050

An X-ray of the upper spine with 4-5 views is a non-invasive imaging test. It uses radiation to capture detailed images of the bones and structures in your neck and upper back. This procedure helps identify issues like fractures, infections, or deformities.

37 services37 patients

Ct scan of blood vessels of abdomen and pelvis with contrast 74174

A CT scan of the abdomen and pelvis with contrast is a medical imaging procedure. A special dye, called contrast, is used to make blood vessels more visible. The scan produces detailed images of your abdomen and pelvis, helping doctors to diagnose conditions or plan treatments.

37 services37 patients

Ultrasound study of one arm or leg veins with compression and maneuvers 93971

This is a non-invasive procedure using sound waves to visualize veins in an arm or leg. It involves applying gentle pressure and performing certain movements. It helps identify any abnormal blood flow or clots, ensuring vascular health.

37 services37 patients

X-ray of ankle, minimum of 3 views 73610

An ankle X-ray is a quick, painless imaging test. It involves capturing at least three different images or 'views' of your ankle using small amounts of radiation. These images help identify any abnormalities or injuries, such as fractures or arthritis.

33 services31 patients

X-ray of chest, 2 views 71046

31 services31 patients

X-ray of lower and sacral spine, 2-3 views 72100

An X-ray of the lower and sacral spine involves capturing images of your lower back area, including the tailbone. This procedure helps in identifying problems like fractures, infections, or deformities. 2-3 different angle views provide a comprehensive picture.

30 services30 patients

Ct scan of chest without contrast 71250

28 services28 patients

Ct scan of chest with contrast 71260

26 services26 patients

Imaging for evaluation of swallowing function 74230

This process, known as a swallowing study, uses imaging technology to view how food and liquid move from your mouth to your stomach. It helps identify any issues you may have swallowing, which can be crucial for determining the best treatment plan.

26 services26 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.

23 services23 patients

X-ray of pelvis, 1-2 views 72170

An X-ray of the pelvis, 1-2 views, is a quick and painless imaging test. It uses a small amount of radiation to produce images of the lower part of your torso. These images help to detect any abnormalities or injuries in your hip bones and surrounding structures.

23 services23 patients

X-ray of knee, 1-2 views 73560

An X-ray of the knee with 1-2 views is a quick, painless test that produces images of the knee bones. It helps identify fractures, infections, or changes in the knee joint. During the procedure, you'll be asked to stay still while the X-ray machine captures the images.

23 services23 patients

Ct scan of abdomen and pelvis before and after contrast 74178

A CT scan of your abdomen and pelvis with and without contrast helps visualize your internal organs better. Contrast is a special dye that improves the clarity of the images. It's taken orally or injected into your veins before the scan. The process is painless and quick.

23 services23 patients

3d radiographic procedure with computerized image postprocessing 76377

A 3D radiographic procedure with computerized image postprocessing is a high-tech imaging test. It uses X-rays to create detailed 3D images of the body. The computerized postprocessing further enhances these images for more precise diagnosis and treatment planning.

23 services23 patients

Low dose ct scan of chest for lung cancer screening 71271

A low-dose CT scan of the chest is a quick, painless procedure that uses a small amount of radiation to create detailed images of your lungs. It's a key tool for early detection of lung cancer, especially for those at high risk.

22 services22 patients

X-ray of hand, minimum of 3 views 73130

An X-ray of the hand, minimum of 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the bones in your hand from different angles. This helps in diagnosing fractures, infections, arthritis, or other abnormalities. It's quick and painless.

22 services20 patients

X-ray of both hips, minimum of 5 views 73523

An X-ray of both hips with a minimum of 5 views is a non-invasive imaging test. It uses a small amount of radiation to produce images of the hip joints from different angles. This aids in diagnosing conditions such as fractures, arthritis, or other hip abnormalities.

22 services22 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.

20 services20 patients

X-ray of wrist, minimum of 3 views 73110

An X-ray of the wrist, minimum of 3 views, is a diagnostic procedure that uses radiation to create images of your wrist from different angles. This helps detect fractures, infections, or other abnormalities for accurate diagnosis and treatment planning.

20 services20 patients

X-ray of ribs on side of body, minimum of 3 views 71101

This is a diagnostic procedure where a machine emits a small amount of radiation to capture images of your ribs from at least three different angles. It helps to identify issues like fractures or infections. It's a quick, painless process.

16 services16 patients

X-ray of elbow, minimum of 3 views 73080

An elbow X-ray with a minimum of 3 views is a non-invasive imaging test. It helps visualize the bones of the elbow from different angles. This aids in diagnosing conditions like fractures or arthritis. The procedure is quick, painless, and usually takes around 15 minutes.

15 services14 patients

Ultrasound study of arm or leg veins with compression and maneuvers 93970

An ultrasound study of arm or leg veins with compression and maneuvers is a non-invasive procedure that uses sound waves to create images of your veins. This helps identify blood clots or other vein problems. During the procedure, pressure is applied to the veins and certain movements are performed to assess blood flow.

15 services15 patients

Ct scan of pelvis without contrast 72192

A CT scan of the pelvis without contrast is a non-invasive imaging test. It uses X-rays to create detailed pictures of your lower abdomen area. It helps in detecting issues like injuries, inflammation, or abnormal growths. It doesn't involve any dye injection.

14 services14 patients

X-ray of lower leg, 2 views 73590

An X-ray of the lower leg, 2 views, is a quick, painless test that produces images of the bones in your lower leg. It helps to identify fractures, infections, or diseases. Two different angles are used to provide a comprehensive view of the leg's structure.

14 services13 patients

Limited ultrasound scan of abdomen 76705

14 services14 patients

Ultrasound of both sides of head and neck blood flow 93880

An ultrasound of the head and neck blood flow is a safe, non-invasive procedure that uses sound waves to create images of blood vessels. It helps detect abnormalities like blockages or clots, ensuring optimal blood flow.

14 services14 patients

X-ray of finger, minimum of 2 views 73140

An X-ray of the finger involves capturing images of your finger from at least two different angles. This non-invasive procedure helps in visualizing the bones and joints, aiding in the diagnosis of fractures, infections, or other abnormalities. Minimal discomfort may be experienced.

13 services11 patients

Ct scan of abdominal aorta and both leg arteries with contrast 75635

A CT scan of the abdominal aorta and both leg arteries with contrast is a medical imaging procedure. A special dye is injected to make your blood vessels visible on the scan. This helps to check for any blockages or abnormalities in these areas.

13 services13 patients

Ultrasound scan of head and neck soft tissue 76536

13 services13 patients

Complete ultrasound scan of pelvis 76856

A complete ultrasound scan of the pelvis is a safe, non-invasive imaging procedure. It uses sound waves to create pictures of your lower abdomen area, helping doctors to evaluate and diagnose any potential issues. It's painless and usually takes about 30 minutes.

13 services13 patients

X-ray of middle spine, 2 views 72070

An X-ray of the middle spine, or thoracic spine, involves capturing two different images of the area. This non-invasive procedure uses small amounts of radiation to visualize the bones and tissues in your back, helping to identify any abnormalities or injuries.

12 services12 patients

Complete ultrasound scan behind abdominal cavity 76770

12 services12 patients

Limited ultrasound scan of joint or other extremity structure except blood vessels 76882

A limited ultrasound scan of a joint or other extremity structure lacking blood vessels is a non-invasive procedure that uses sound waves to create images of the inside of your body. This helps in diagnosing and monitoring conditions related to your joints or other similar structures.

12 services11 patients

Ultrasound of one leg arteries or artery grafts 93926

An ultrasound of leg arteries or artery grafts is a non-invasive test using sound waves to create images of your blood vessels. This helps doctors assess blood flow, identify blockages, and monitor the health of grafts.

12 services12 patients

Ultrasound scan of uterus, ovaries, tubes, cervix and pelvic area through vagina 76830

An ultrasound scan of the lower abdominal region is a safe, non-invasive procedure that uses sound waves to create images of internal structures. This helps in checking the health of reproductive organs and detecting any abnormalities. The scan is done via a small probe inserted into the body.

11 services11 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94598 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

$104.51 typical visit price

range $69.00 – $202.35

Typical copayment $26.12 (range $17.25 – $50.58)

Most-billed visit code 99203

Established Patient

$84.91 typical visit price

range $23.44 – $166.46

Typical copayment $21.22 (range $5.86 – $41.61)

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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

90.81/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

85.12

Improvement Activities

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. PHILIP J. RICH MD

Radiology (Diagnostic Radiology)

2125 OAK GROVE RD, #200
WALNUT CREEK, CA 94598

Contra Costa County (925) 296-7150

DR. JONATHAN FISH M.D.

Radiology (Diagnostic Radiology)

2125 OAK GROVE RD, SUITE 200
WALNUT CREEK, CA 94598

Contra Costa County (925) 296-7150

DR. JOSEPH CHAN M.D.

Radiology (Diagnostic Radiology)

2125 OAK GROVE RD, SUITE 200
WALNUT CREEK, CA 94598

Contra Costa County (925) 296-7150

DR. ASEEM OM RAWAL M.D.

Radiology (Diagnostic Radiology)

2125 OAK GROVE RD, SUITE 200
WALNUT CREEK, CA 94598

Contra Costa County (925) 296-7150

CHRISTOPHER C LEE MD

Radiology (Vascular & Interventional Radiology)

2125 OAK GROVE RD, #200
WALNUT CREEK, CA 94598

Contra Costa County (925) 296-7150

SUNIL GANDHI M.D.

Radiology (Diagnostic Radiology)

2125 OAK GROVE RD, SUITE 200
WALNUT CREEK, CA 94598

Contra Costa County (925) 296-7150

DR. RALPH WESLEY MUTCHLER M.D.

Radiology (Diagnostic Radiology)

2125 OAK GROVE RD, #200
WALNUT CREEK, CA 94598

Contra Costa County (925) 296-7150

DR. SANGEETA GAMBHIR M.D.

Radiology (Diagnostic Radiology)

2125 OAK GROVE RD, #200
WALNUT CREEK, CA 94598

Contra Costa County (925) 296-7150

MARK KUANG-MIAN TU M.D.

Radiology (Diagnostic Radiology)

2125 OAK GROVE RD, SUITE 200
WALNUT CREEK, CA 94598

Contra Costa County (925) 296-7150

DR. RONALD CHAN M.D.

Radiology (Diagnostic Radiology)

2125 OAK GROVE RD, SUITE 200
WALNUT CREEK, CA 94598

Contra Costa County (925) 296-7150

DR. RUBY CHANG M.D.

Radiology (Diagnostic Radiology)

2125 OAK GROVE RD, SUITE 200
WALNUT CREEK, CA 94598

Contra Costa County (925) 296-7150

DR. KEYVAN NOURI M.D.

Radiology (Diagnostic Radiology)

2125 OAK GROVE RD, SUITE 200
WALNUT CREEK, CA 94598

Contra Costa County (925) 296-7150

JOAN REYNOLDS M.D.

Radiology (Diagnostic Radiology)

2125 OAK GROVE RD, SUITE 200
WALNUT CREEK, CA 94598

Contra Costa County (925) 296-7150

KEITH EDWIN-MOSUN TAO M.D.

Radiology (Diagnostic Radiology)

2125 OAK GROVE RD, SUITE 200
WALNUT CREEK, CA 94598

Contra Costa County (925) 296-1756

ANGELO CRUDALE MD

Radiology (Diagnostic Radiology)

2125 OAK GROVE RD, SUITE 200
WALNUT CREEK, CA 94598

Contra Costa County (925) 296-7150

DR. NORMAN MOSCOW

Radiology (Diagnostic Radiology)

2125 OAK GROVE RD, SUITE 200
WALNUT CREEK, CA 94598

Contra Costa County (925) 296-7150

STEPHEN HESSELTINE M.D.

Radiology (Diagnostic Radiology)

2125 OAK GROVE RD, SUITE 200
WALNUT CREEK, CA 94598

Contra Costa County (925) 296-7150

DR. DANIEL KIM M.D.

Radiology (Vascular & Interventional Radiology)

2125 OAK GROVE RD, SUITE 200
WALNUT CREEK, CA 94598

Contra Costa County (925) 296-7150

DR. KIMBERLY M. BLUMBERG M.D

Radiology (Diagnostic Radiology)

2125 OAK GROVE RD, SUITE 200
WALNUT CREEK, CA 94598

Contra Costa County (925) 296-7150

DR. YING FUNG M.D.

Radiology (Diagnostic Radiology)

2125 OAK GROVE RD, SUITE 200
WALNUT CREEK, CA 94598

Contra Costa County (925) 296-7150

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 Siva Raman's NPI number?

The NPI number for Siva Raman is 1295840924. It was assigned to this individual provider in the NPPES registry on August 21, 2006.

Where is Siva Raman located?

Siva Raman practices at 2125 Oak Grove Rd Ste 200, Walnut Creek, CA 94598. The listed phone number is (410) 955-5173.

What is Siva Raman's specialty?

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

Is Siva Raman enrolled in Medicare?

Yes. Siva Raman is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Siva Raman's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Siva Raman reassigns Medicare benefits to 8 organizations: Bay Imaging Consultants Medical Group Inc (Walnut Creek, CA), Michael P Sherman MD Phd, A Medical Corporation (Walnut Creek, CA), John Muir Magnetic Imaging Center (Walnut Creek, CA), John Muir Trauma Physicians Billing Service (Walnut Creek, CA), Magnetic Imaging Affiliates, LLC (Oakland, CA) and 3 more organizations, listed in the Medicare section above. Each 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 Siva Raman'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 Siva Raman was last updated on March 13, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.