Summary

Dr. Mark Brennan is a vascular surgeon who specializes in surgery with a focus on vascular procedures. He earned his medical degree from Philadelphia College of Osteopathic Medicine, where he also completed his residency training. With 32 years of experience in the field, Dr. Brennan brings extensive knowledge to his surgical practice. He is fluent in English.

Dr. Brennan practices at Wilson Medical Center in Johnson City, New York. He treats patients with conditions such as respiratory failure and gallbladder stones. His surgical expertise includes chronic wound care, advanced imaging techniques, and minimally invasive gallbladder removal procedures. Patients have given him an average rating of 3.5 out of 5 on Vitals.

AI-generated from data on this provider profile.

Quick Facts

  • accepting new patients
  • 3.5
  • 32 years of experience
  • speaks English
  • Philadelphia College Of Osteopathic Medicine
  • 2 written reviews
  • 2 specialties
  • 7 areas of expertise
  • 3 hospital affiliations
  • 2 office locations
  • Male

Office Locations

Dr. Mark Joseph Brennan has 2 locations

Uhs Surgery

30 Harrison StJohnson City, NY 13790
Mon8:00 am - 5:00 pm
Tue8:00 am - 5:00 pm
Wed8:00 am - 5:00 pm
Thu8:00 am - 5:00 pm
Fri8:00 am - 5:00 pm
SatClosed
SunClosed

Uhs Wilson Medical Center

30 Harrison Street Wilson Square 4th FloorJohnson City, NY 13790

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Dr. Mark Joseph Brennan, DO
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Dr. Mark Joseph Brennan, DODr. H. Michael Choi, MDDr. David Peter Bayne, MDDr. Thomas Joseph Jasterzbski
SurgerySurgerySurgeryDermatology
Accepts New Patients Accepts New Patients
3.5 
4.6 
3.5 
32 Years of Experience 30 Years of Experience 46 Years of Experience 10 Years of Experience
No Virtual Visit Option Virtual Visit Available No Virtual Visit Option No Virtual Visit Option
Speaks English Speaks English, Korean
Johnson City , NYPomona , NYHampton , VAPine Brook , NJ
Med School: Philadelphia College Of Osteopathic Medicine Med School: Icahn School Of Medicine At Mount Sinai Med School: Howard University College Of Medicine Med School: Rutgers New Jersey Medical School
Current Profile
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Insurance Plans Accepted by Dr. Mark Joseph Brennan

  • Accepts Medicare
  • Accepts Medicaid

Medical Specialties

Dr. Mark Joseph Brennan has the following 2 specialties

Specialty Expertise

Dr. Mark Joseph Brennan has the following 7 areas of expertise

  • Aneurysm
  • Carotid Endarterectomy
  • Deep Vein Thrombosis
  • Diabetes Complications
  • Varicose Veins
  • Vascular Malformations
  • Vascular Surgery

Certifications, License, & Education

32 Years Experience

MEDICAL LICENSE

Doctor Of Osteopathy, New York, 2026, Expired

EDUCATION & TRAINING

Residency

Philadelphia College Of Osteopathic Medicine

Medical School

Philadelphia College Of Osteopathic MedicineGraduated in 1994

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Frequently Asked Questions

Where is Dr. Mark Brennan's office located?
Dr. Mark Brennan's office is located at 30 Harrison St, Johnson City, NY, 13790.
Does Dr. Mark Brennan accept my insurance?
You can see the insurance plans that Dr. Mark Brennan accepts on their Vitals profile.
Does Dr. Mark Brennan accept virtual/telehealth appointments?
Dr. Mark Brennan has not indicated that they accept virtual/teleheatlh appointments. Contact their office through their Vitals profile to check for availability.
How can I make an appointment with Dr. Mark Brennan?
You can find contact information for Dr. Mark Brennan here on Vitals.
Is Dr. Mark Brennan accepting new patients?
Dr. Mark Brennan is accepting new patients on Vitals. View Dr. Mark Brennan's profile on Vitals to make an appointment.

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