Summary

Dr. Antonios Katsigiannis has practiced internal medicine for 33 years and is affiliated with Greenwich Hospital. He treats type 2 diabetes mellitus and hypertension, and performs physical therapy and strength training. He completed his residency at Stamford Hospital and sees patients in Stamford, Connecticut. Patients on Vitals rate Dr. Katsigiannis 4.9 out of 5.

Overview based on verified provider data

Quick Facts

  • accepting new patients
  • 4.9
  • 33 years of experience
  • 30 insurance plans accepted
  • speaks English
  • Stamford Hospital
  • 7 written reviews
  • 1 specialty
  • 7 areas of expertise
  • 1 hospital affiliation
  • 1 office location
  • Male

Patients’ Perspective

  • Gave an accurate diagnosis
  • Had a good bedside manner
  • Spent time with me

Office Location

Antonios Katsigiannis

90 Morgan St Ste 101-102Stamford, CT 06905
Mon9:00 am - 5:00 pm
Tue9:00 am - 5:00 pm
Wed9:00 am - 5:00 pm
ThuClosed
Fri9:00 am - 12:00 pm
SatClosed
SunClosed

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Antonios Katsigiannis, MD
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Antonios Katsigiannis, MDDr. Ronen J Harel, DODr. Susan P. Campanile, MDEduardo S. Granato, MD
Internal MedicineInternal MedicineInternal MedicineInternal Medicine
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
4.9 
3.5 
3.9 
3.9 
33 Years of Experience 15 Years of Experience 31 Years of Experience 42 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks English Speaks English Speaks English, Spanish Speaks Italian, Spanish
Stamford , CTCortlandt Manor , NYScarsdale , NYScarsdale , NY
Med School: New York Medical College Med School: New York Institute Of Technology College Of Osteopathic Medicine Med School: New York Medical College Med School: Universidad Autonoma De Guadalajara
Current Profile
View Profile View Profile View Profile

Insurance Plans Accepted by Antonios Katsigiannis

  • Aetna
  • Aetna - HMO
  • Aetna - Medicare
  • Aetna - PPO
  • Anthem Blue Cross
  • Blue Cross Blue Shield
  • CHAMPVA
  • Cigna
  • Cigna-HealthSpring
  • Cigna-HealthSpring - HMO
  • Cigna-HealthSpring - Medicare
  • ConnectiCare
  • ConnectiCare - Medicare
  • EmblemHealth
  • Empire Blue Cross Blue Shield
  • Empire Plan
  • Humana
  • Integra
  • Medicaid - Medicaid
  • Medicaid - Medicaid (Managed)
  • Medicare
  • Medicare - Medicaid
  • Medicare - Medicare
  • Optum Health
  • PreferredOne
  • UnitedHealthcare
  • UnitedHealthcare - HMO
  • UnitedHealthcare - Medicare
  • UnitedHealthcare - Medicare (Advantage HMO)
  • UnitedHealthcare Oxford

Medical Specialties

Antonios Katsigiannis has the following specialty

Specialty Expertise

Antonios Katsigiannis has the following 7 areas of expertise

  • Check-up
  • Heartburn
  • Immunization
  • Physical
  • Vaccination
  • Weight Loss
  • Weight Loss (non-surgical)

Certifications, License, & Education

33 Years Experience

Antonios Katsigiannis holds an expired medical license in the state of Connecticut.

Medical License

Medical Doctor with an expired medical license in the state of Connecticut that expired in 2025.

Education & Training

Residency

Completed their residency at Stamford Hospital.

Medical School

Graduated from New York Medical College in 1993.

NPI Number

Antonios Katsigiannis' NPI number is 1629157276.

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Frequently Asked Questions

Where is Antonios Katsigiannis's office located?
Antonios Katsigiannis's office is located at 90 Morgan St Ste 101-102, Stamford, CT, 06905.
Is Antonios Katsigiannis accepting new patients?
Antonios Katsigiannis is accepting new patients on Vitals. View Antonios Katsigiannis's profile on Vitals to make an appointment.
Does Antonios Katsigiannis accept my insurance?
You can see the insurance plans that Antonios Katsigiannis accepts on their Vitals profile.
How can I make an appointment with Antonios Katsigiannis?
You can find contact information for Antonios Katsigiannis here on Vitals.
Does Antonios Katsigiannis accept virtual/telehealth appointments?
Antonios Katsigiannis has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.

Data Sources

This provider profile is built using data from:

  • NPPES NPI Registry
  • State medical licensing boards
  • Healthcare system and provider network data

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