NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Keshav Parthasarathy, M.D.

Critical Care Medicine (Internal Medicine) Physician in Concord, MA · enumerated 2008.

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

National Provider Identifier

1447401419

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Keshav Parthasarathy
Credential M.D.
Sex Male
Practice address 133 Old Road To 9 Acre Cor, Tak Medical Group, Concord, MA, 01742
Phone (978) 466-4396
Fax (978) 466-4029
Enumeration date Oct 8, 2008
Last updated in NPPES Aug 6, 2014

Taxonomy & licenses

207RC0200X Critical Care Medicine (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 254154 (MA) Primary
208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 254154 (MA) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 254154 (MA) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 25154 (MA) Secondary
208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License 25154 (MA) Secondary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

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.

Read the full guide → Validate an NPI →

Frequently asked questions

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.
What specialty is Keshav Parthasarathy?
Keshav Parthasarathy is registered in NPPES with the primary taxonomy of Critical Care Medicine (Internal Medicine) Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-08-06.