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Dr. Vijay Viswanathan, M.D.

Diagnostic Radiology Physician in Dover, DE · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1982792818

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Registry record

Entity type Individual (Type 1)
Name Dr. Vijay Viswanathan
Credential M.D.
Sex Male
Practice address 640 S State St, Dover, DE, 19901
Phone (302) 480-1688
Fax (302) 480-9807
Enumeration date Oct 10, 2006
Last updated in NPPES Nov 30, 2023

Taxonomy & licenses

2085N0700X Neuroradiology Physician Allopathic & Osteopathic Physicians · License C1-0009394 (DE) Secondary
2085N0904X Nuclear Radiology Physician Allopathic & Osteopathic Physicians · License C1-0009394 (DE) Secondary
2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License D0068887 (MD) Secondary
2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License 230305 (MA) Secondary
2085R0202X Diagnostic Radiology Physician Allopathic & Osteopathic Physicians · License C1-0009394 (DE) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier Type State Issuer
P00751354 Other - AAD RR PTAN
S645 Other MD AAD BCBS
417828900 Medicaid MD -
1073 Other MD AAD BLUE CHOICE
156383ZDYC Other MD RR MEDICARE ARA PTAN
1073 Other MD AAD BCBS REGIONAL PLANS
3811 Other MD AAD SHIPLEYS BLUE CHOICE
KC46SH Other MD AAD SHIPLEYS BCBS

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

What specialty is Vijay Viswanathan?
Vijay Viswanathan is registered in NPPES with the primary taxonomy of Diagnostic Radiology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-11-30.