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

Dr. John Toksoy, MD

Individual provider Internal Medicine Physician · NPI 1396773511

Dr. John Toksoy, MD is an Internal Medicine Physician in New Haven, Connecticut. Licensed in Connecticut. Registered with an NPI since 2006.

Licensed in
CT
In the registry since
2006
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

55 Lock St
New Haven, CT 06520-8237
Phone: (203) 432-0076
Fax: (203) 432-7289
Show map & directions

Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 038460 (CT)

Record details

NPI number1396773511
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 28, 2006
Last updated in NPPESFebruary 25, 2011
Mailing addressPo Box 208237, 55 Lock Street, New Haven, CT 06520-8237

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