Karthik Gunachelvan

Internal Medicine Physician · Darien, CT

Individual Active NPI

NPI number 1740604941

Practice location

1500 Post Rd Ste 100
Darien, CT 06820-5936
Phone
(203) 655-8749
Fax
(203) 656-0701

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NPI record

NPI
1740604941
Entity type
Individual (Type 1)
Enumeration date
February 7, 2014
Last updated
October 21, 2025
Certified
October 21, 2025
Sole proprietor
Yes

Specialties & taxonomy codes

TaxonomyCodeLicenseState
Internal Medicine Physician Primary 207R00000X 82825 CT

About Karthik Gunachelvan

Karthik Gunachelvan is a healthcare provider registered in the NPI registry with the primary taxonomy Internal Medicine Physician (code 207R00000X). The practice location is 1500 Post Rd Ste 100, Darien, CT 06820-5936. The NPI number 1740604941 was assigned on February 7, 2014 and the record was last updated on October 21, 2025.

Karthik Gunachelvan lists a license in the registry: #82825 (CT) for Internal Medicine Physician. License numbers are self-reported to NPPES; verify them with the state licensing board.

Frequently asked questions

What is the NPI number of Karthik Gunachelvan?

The NPI number is 1740604941.

What is the phone number of Karthik Gunachelvan?

The phone number listed for the practice location is (203) 655-8749.

Where is Karthik Gunachelvan located?

1500 Post Rd Ste 100, Darien, CT 06820-5936.

What is the taxonomy code for Karthik Gunachelvan?

The primary taxonomy code is 207R00000X – Internal Medicine Physician.

Is this information correct?

All details come from the public NPPES registry. Providers can update their record at nppes.cms.hhs.gov; changes appear here after the next weekly update.

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