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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Joshan K Shajan, M.D.

Internal Medicine Physician in Cos Cob, CT · enumerated 2012 · practices at Doctors Office Ct Pllc.

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

National Provider Identifier

1790043040

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Registry record

Entity type Individual (Type 1)
Name Dr. Joshan K Shajan
Credential M.D.
Sex Male
Practice address 40 E Putnam Ave Ste 1b, Cos Cob, CT, 06807
Phone (203) 489-5442
Fax (203) 325-3270
Enumeration date Apr 24, 2012
Last updated in NPPES Apr 10, 2026

Taxonomy & licenses

208D00000X General Practice Physician Allopathic & Osteopathic Physicians · License A155675 (CA) Secondary
207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 53782 (CT) Primary
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.

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Frequently asked questions

How do I verify Joshan Shajan's NPI record?
Cross-check NPI 1790043040 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1790043040 active?
Yes, as of the latest NPPES snapshot, NPI 1790043040 is active (record last updated 2026-04-10).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-04-10.