Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Sowmya Viswanathan, MD

Individual provider Internal Medicine Physician · NPI 1598748261

Dr. Sowmya Viswanathan, MD is an Internal Medicine Physician in Manchester, New Hampshire. Licensed in Massachusetts and New Hampshire. Registered with an NPI since 2005.

Licensed in
MA, NH
In the registry since
2005
Specialties on file
2
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

100 Hitchcock Way Internal Medicine
Manchester, NH 03104
Phone: (603) 695-2500
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 18050 (NH)
Internal Medicine Physician Taxonomy 207R00000X · Licence 80591 (MA)

Record details

NPI number1598748261
Entity typeIndividual (Type 1)
GenderFemale
Credentials MD
Sole proprietorNo
NPI enumeratedNovember 27, 2005
Last updated in NPPESJuly 21, 2022

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