Summary

Dr. Antonios Katsigiannis is an internal medicine physician who earned his medical degree from New York Medical College and completed his residency at Stamford Hospital. With 33 years of experience in internal medicine, he brings extensive knowledge in comprehensive adult healthcare. Dr. Katsigiannis speaks English and focuses on providing thorough medical care for adult patients.

Dr. Katsigiannis practices at Greenwich Hospital with his office located in Stamford, Connecticut. He treats patients experiencing weakness and back pain, including specialized care for back pain during pregnancy and in children and teens. His treatment approach includes physical therapy, strength training, and manual therapy to help patients recover and improve their overall health. Patients have given Dr. Katsigiannis an average rating of 4.9 out of 5 on Vitals, reflecting their satisfaction with his care.

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. Peter George Hasapis, MDEric HarkerKerry L. Folkman, MSN, NP-C
Internal MedicineInternal MedicineInternal MedicineInternal Medicine
Accepts New Patients Accepts New Patients Accepts New Patients Accepts New Patients
4.9 
4.1 
33 Years of Experience 25 Years of Experience 16 Years of Experience
No Virtual Visit Option No Virtual Visit Option Virtual Visit Available Virtual Visit Available
Speaks English Speaks Russian, Spanish, English Speaks English Speaks English
Stamford , CTNew Canaan , CTLyons , COBrookline , MA
Med School: New York Medical College Med School: Cornell University Medical College Med School: Duke University School Of Medicine Med School: Regis College
Current Profile
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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.
Which hospitals is Antonios Katsigiannis affiliated with?
Antonios Katsigiannis is affiliated with Greenwich Hospital.
Does Antonios Katsigiannis accept my insurance?
You can see the insurance plans that Antonios Katsigiannis accepts on their Vitals profile.
What languages does Antonios Katsigiannis speak?
Antonios Katsigiannis speaks English.
How can I make an appointment with Antonios Katsigiannis?
You can find contact information for Antonios Katsigiannis here on Vitals.

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