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

Individual provider Internal Medicine Physician · NPI 1629157276

Dr. Antonios Katsigiannis, MD is an Internal Medicine in Stamford, Connecticut. Graduated from New York Medical College in 1993, 33 years ago. Practices as a sole proprietor, accepts Medicare assignment and offers telehealth. Licensed in Connecticut.

Years since qualifying
33
Trained at
New York Medical College
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

90 Morgan St Ste 101
Stamford, CT 06905-5466
Phone: (203) 323-8437
Fax: (203) 327-4628
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence 035140 (CT)

Record details

NPI number1629157276
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorYes
NPI enumeratedNovember 3, 2006
Last updated in NPPESOctober 21, 2019

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolNEW YORK MEDICAL COLLEGE
Graduated 1993 (33 years in practice)
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
TelehealthOffers telehealth services

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