Sowmya Viswanathan, MD
NPI 1598748261 · Internal Medicine Physician · Manchester, NH
Sowmya Viswanathan, MD is a Internal Medicine Physician provider in Manchester, NH (NPI 1598748261).
Provider details
- NPI number
- 1598748261
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 80591 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-11-27
- Last updated
- 2022-07-21
Frequently asked questions
- What is Sowmya Viswanathan's NPI number?
- Sowmya Viswanathan's National Provider Identifier (NPI) is 1598748261, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sowmya Viswanathan's specialty?
- Sowmya Viswanathan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Sowmya Viswanathan located?
- Sowmya Viswanathan's practice location on file with NPPES is 100 Hitchcock Way, Manchester, NH 03104.
- What is Sowmya Viswanathan's phone number?
- The practice phone number listed in the NPPES registry for Sowmya Viswanathan is (603) 695-2500.
- Is Sowmya Viswanathan's NPI active?
- Yes — Sowmya Viswanathan's NPI (1598748261) is active in the NPPES registry as of the last update on 2022-07-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.