Karthikeyan Viswanathan, DO

NPI 1396128336 · on the registry since 2015

Practice

Address: 4546 El Camino Real Ste B7
Los Altos, CA 94022
Phone: (866) 362-4246
Fax: (650) 260-6030
Organisation at this address: Eat 2 Perform Inc.
Uroviu Corporation
Mary Parman D O P C
Topone Health Center
Rialto Medical Group
Inferred from a shared address, not stated in the registry.
Clinicians at this address: 40

Registry record

Primary taxonomy: 207R00000X
207R00000X
Licence states on file: CA
From the registry's licence fields, which are often incomplete.
Sex: Male
Record last updated: 2025-08-21

Source: CMS National Plan and Provider Enumeration System. Registration is not the same as practising, and the registry records no retirement — some people listed here no longer practise. More in California