Quick answers
- Which hospitals does Vijay Viswanathan work at?
- Medicare's official clinician data lists Vijay Viswanathan at 5 hospitals: Alta Bates Summit Medical Center, Alta Bates Summit Medical Center - Alta Bates Camp…, Eden Medical Center, Good Samaritan Hospital and John Muir Medical Center - Walnut Creek Campus. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does Vijay Viswanathan see patients?
- Medicare's clinician data lists 11 practice locations, including Milford, DE, Oakland, CA and Walnut Creek, CA. Call before your visit to confirm the address.
- What is Vijay Viswanathan's specialty?
- Medicare lists Diagnostic Radiology as the primary specialty.
- Does Vijay Viswanathan accept Medicare assignment?
- Medicare's clinician data says Vijay Viswanathan may accept Medicare assignment (as of 2026-10-02). Ask the office whether they accept it for your visit.
- What is the phone number for Vijay Viswanathan?
- (610) 892-8889, as listed in official Medicare / NPI Registry data.
- What is Vijay Viswanathan's NPI number?
- 1982792818. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where Vijay Viswanathan works
Medicare's Facility Affiliation Data lists Vijay Viswanathan at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Alta Bates Summit Medical CenterOakland, CA · Acute Care Hospital · CCN 050043
- Alta Bates Summit Medical Center - Alta Bates Camp…Berkeley, CA · Acute Care Hospital · CCN 050305
- Eden Medical CenterCastro Valley, CA · Acute Care Hospital · CCN 050488
- Good Samaritan HospitalSan Jose, CA · Acute Care Hospital · CCN 050380
- John Muir Medical Center - Walnut Creek CampusWalnut Creek, CA · Acute Care Hospital · CCN 050180
Practice locations
Addresses where Vijay Viswanathan is enrolled with Medicare (CMS data updated 2026-10-02). The first 5 of 11; the Medicare profile lists all.
- 100 Wellness WayMilford, DE 19963 (610) 892‑8889
- 15 Bay Forest DrOakland, CA 94611 · Magnetic Imaging Affiliates LLC (925) 296‑7150
- 1601 Ygnacio Valley RdWalnut Creek, CA 94598 (925) 295‑1545
- 1601 Ygnacio Vly RdWalnut Creek, CA 94596 (925) 939‑3000
- 5730 Telegraph AveOakland, CA 94609 · Magnetic Imaging Affiliates LLC (510) 204‑2744
Group practices
Medicare enrollment lists Vijay Viswanathan as a member of these groups (CMS data updated 2026-10-02).
- County of Santa Clara1,022 clinicians in the group
- Lenox Hill Radiology and Medical Imaging Associates PC244 clinicians in the group
- Bay Imaging Consultants Medical Group Inc146 clinicians in the group
- John Muir Trauma Physicians Billing Service113 clinicians in the group
- Bayhealth Radiologists LLC92 clinicians in the group
- John Muir Magnetic Imaging Center57 clinicians in the group
Specialties
- Diagnostic Radiologyprimary
Other radiologists in Milford
Clinicians with the same Medicare primary specialty in Milford, DE — not a recommendation.
Clinician information
| Medical school | Texas A & M University System, Hsc, College Of Medicine |
|---|---|
| Graduation year | 2001 |
| Gender (as listed) | Male |
| Medicare assignment | May accept for some services |
| NPI (National Provider Identifier) | 1982792818 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians