Summary

Dr. Peter Brennan is a gastroenterologist and internal medicine physician who graduated from SUNY Upstate Medical University Alan and Marlene Norton College of Medicine. He completed his residency at Medical College of Virginia Hospital and has been practicing medicine for 46 years. Dr. Brennan speaks both English and Spanish, helping him connect with a diverse patient population.

Dr. Brennan is affiliated with Cayuga Medical Center at Ithaca and practices at Cayuga Gastroenterology in Ithaca, New York. He specializes in treating digestive conditions such as colon polyps, GERD, and acid reflux. His expertise includes performing colonoscopy procedures to screen for colorectal cancer and remove polyps, as well as upper and lower GI endoscopy to diagnose and treat various digestive issues. Patients have given him an average rating of 2.6 on Vitals.

Overview based on verified provider data

Quick Facts

  • 2.6
  • 46 years of experience
  • 31 insurance plans accepted
  • speaks English, Spanish
  • Medical College Of Virginia Hospital
  • 8 written reviews
  • 2 specialties
  • 12 areas of expertise
  • 1 hospital affiliation
  • 3 office locations
  • Male

Patients’ Perspective

  • Flexible scheduling

Office Locations

Dr. Peter Terence Brennan has 3 locations

Cayuga Gastroenterology

1020 Craft Rd Ste CIthaca, NY 14850
Mon8:00 am - 4:30 pm
Tue8:00 am - 4:30 pm
Wed8:00 am - 4:30 pm
Thu8:00 am - 4:30 pm
Fri8:00 am - 4:30 pm
SatClosed
SunClosed

Cayuga Gastroenterology

1020 Craft RdIthaca, NY 14850

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Dr. Peter Terence Brennan, MDRebecca Humphries, APRNDr. Michael Schopis, MDJan Seiler, APRN
GastroenterologyGastroenterologyGastroenterologyGastroenterology
Accepts New Patients Accepts New Patients Accepts New Patients
2.6 
46 Years of Experience 9 Years of Experience
No Virtual Visit Option Virtual Visit Available Virtual Visit Available Virtual Visit Available
Speaks English, Spanish Speaks English Speaks English Speaks English
Ithaca , NYSacramento , CANew York , NYMontgomery , AL
Med School: Suny Upstate Medical University Alan And Marlene Norton Coll Of Med Med School: Emory University Med School: University Of Toledo College Of Medicine Med School: Georgia State University
Current Profile
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Insurance Plans Accepted by Dr. Peter Terence Brennan

  • AARP
  • Aetna
  • Aetna - Medicare
  • Blue Cross Blue Shield
  • Blue Shield of California
  • CHAMPVA
  • Cigna
  • EmblemHealth
  • Fidelis Care (NY)
  • Fidelis Care (NY) - HMO
  • Fidelis Care (NY) - Medicaid (Managed)
  • Guardian
  • Humana
  • MagnaCare
  • Medicaid - Medicaid
  • Medicaid - Medicaid (Managed)
  • Medicare
  • Medicare - Medicare
  • Meritain Health
  • Molina Healthcare
  • Molina Healthcare - Medicaid (Managed)
  • MVP Health Care
  • MVP Health Care - HMO
  • Optum Health
  • STLDentalPlan| LLC
  • Tricare
  • UnitedHealthcare
  • UnitedHealthcare - Medicare
  • Univera Healthcare
  • Univera Healthcare - PPO
  • Wellcare

Medical Specialties

Dr. Peter Terence Brennan has the following 2 specialties

Specialty Expertise

Dr. Peter Terence Brennan has the following 12 areas of expertise

  • Abdominal Pain
  • Acid Reflux Disease (Gastroesophageal Reflux / GERD)
  • Acid Reflux Disease (GERD)
  • Capsule Endoscopy
  • Celiac Disease
  • Colonoscopy
  • Constipation
  • Hemorrhoids
  • Hepatitis C
  • Internal Medicine
  • Irritable Bowel Syndrome (IBS)
  • Ulcerative Colitis

Certifications, License, & Education

46 Years Experience

Dr. Peter Terence Brennan holds an active medical license in the state of New York.

Medical License

Medical Doctor with an active medical license in the state of New York that expired in 2026.

Education & Training

Residency

Completed their residency at Medical College Of Virginia Hospital.

Medical School

Graduated from Suny Upstate Medical University Alan And Marlene Norton Coll Of Med in 1980.

NPI Number

Dr. Brennan's NPI number is 1780655118.

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Frequently Asked Questions

What languages does Dr. Peter Brennan speak?
Dr. Peter Brennan speaks English and Spanish.
How can I make an appointment with Dr. Peter Brennan?
You can find contact information for Dr. Peter Brennan here on Vitals.
Is Dr. Peter Brennan accepting new patients?
Dr. Peter Brennan has not indicated that they accept new patients. Contact their office through their Vitals profile to check for availability.
Does Dr. Peter Brennan accept my insurance?
You can see the insurance plans that Dr. Peter Brennan accepts on their Vitals profile.
Which hospitals is Dr. Peter Brennan affiliated with?
Dr. Peter Brennan is affiliated with Cayuga Medical Center At Ithaca.

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