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Dr. Mark Brennan, DO

Vascular Surgery* Age 54
Dr. Mark Brennan, DO
3.8 (19 Ratings)
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Dr. Mark Brennan, DO is a Vascular Surgeon in Johnson City, NY.
Dr. Mark Brennan, DO
3.8 (19 Ratings)
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Dr. Mark Brennan, DO

Vascular Surgery* Age 54
Johnson City, NY
Accepting new patients
30 years of experience
Dr. Mark Brennan, DO is a Vascular Surgeon in Johnson City, NY.

About

Dr. Brennan graduated from PHILADELPHIA COLLEGE OF OSTEOPATHIC MEDICINE. Dr. Mark Brennan, DO is a Vascular Surgeon in Johnson City, NY and has 30 years experience. Dr. Brennan currently practices at Practice and are affiliated with Chenango Memorial Hospital and UHS Binghamton General Hospital. Dr. Brennan has experience treating conditions like Peripheral Vascular Disease (PAD and PVD) among other conditions at varying frequencies. At present, Dr. Brennan received an average rating of 3.8/5 from patients and has been reviewed 19 times. Dr. Brennan's office accepts new patients. Dr. Brennan is board certified in General Surgery and accepts multiple insurance plans.

Friendly Staff

Patients said the staff was friendly.

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These providers are on the medical staff of Cleveland Clinic
These providers are on the medical staff of Cleveland Clinic.
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Experience Check

Enter a condition or procedure
Peripheral Artery Catheterization
Arterial Catheterization with Robotic Assist
Peripheral Vascular Disease (PAD, PVD)
Peripheral Artery Catheterization
Arterial Catheterization with Robotic Assist
Peripheral Vascular Disease (PAD, PVD)
Peripheral Artery Catheterization
Arterial Catheterization with Robotic Assist
Peripheral Vascular Disease (PAD, PVD)
Abdominal Aortic Aneurysm (AAA)
Acute Deep Vein Thrombosis (DVT)
Acute Venous Embolism Thrombosis
Aortic Aneurysm
Atherosclerosis
Carotid Artery Disease
Cerebrovascular Disease
Coronary Artery Disease (CAD)
Deep Vein Thrombosis (DVT)
Embolism
  • View other providers who treat Embolism
Peripheral Arterial Disease of Extremities
Pulmonary Embolism
Varicose Veins
Venous Compression
Venous Embolism and Thrombosis
Venous Insufficiency
Carotid Endarterectomy (CEA) or Excision of Infected Graft
Embolectomy Arterial
Non-Coronary Angioplasty, Atherectomy, and Stenting
Peripheral Artery Bypass
Varicose Vein Procedure
Vascular Duplex Ultrasonography and Plethysmography
Abdominal Pain
Anal and Rectal Cancer
Aneurysm
  • View other providers who treat Aneurysm
Anorectal Abscess
Aortic Dissection
Aortic Ectasia
Aortic Embolism and Thrombosis
Appendicitis
Arteriovenous Fistula
Arteriovenous Malformation (AVM)
Atherosclerosis of Aorta
Barrett's Esophagus
Benign Neoplasm of the Digestive System
Bone Cancer
Brachial Plexus Palsy
Breast Cancer
Cholecystitis and Gallstones
Chronic Deep Vein Thrombosis (DVT)
Chronic Venous Embolism Thrombosis
Collapsed Lung (Pneumothorax)
Colorectal Cancer
Congenital Heart Defects
Constipation
Crohn's Disease
Diaphragmatic and Hiatal Hernia
Empyema
  • View other providers who treat Empyema
Esophageal Cancer
Esophageal Varices
Gallstones
Gastric Ulcer
Gynecologic Cancer
Hemorrhoids
Hiatal Hernia
Hyperparathyroidism
Ileus
  • View other providers who treat Ileus
Iliac Aneurysm
Incisional Hernia
Inflammatory Bowel Disease
Inguinal Hernia
Intestinal Abscess
Intestinal Obstruction
Ischemic Colitis
Lipomas
  • View other providers who treat Lipomas
Liver Cancer
Lung Cancer
Lymphedema
Median Arcuate Ligament Syndrome (MALS)
Mesenteric Lymphadenitis
Neuroendocrine Tumors
Osteosarcoma
Parathyroid (Gland) Disease
Partial Lung Collapse
Pelvic Abscess
Peptic Ulcer
Peripheral Arterial Aneurysm
Peripheral Arterial Aneurysm and Dissection
Peripheral Arterial Dissection
Peripheral Arterial Embolism and Thrombosis
Peripheral Edema
Peripheral Nerve Disorders
Phlebitis and Thrombophlebitis
Pleural Effusion
Postthrombotic Syndrome
Pyloric Stenosis
Renal Artery Arteriosclerotic Disease
Rib Fracture
Ruptured Aortic Aneurysm
Secondary Malignancies
Septic Embolism
Spider Veins
Thoracic Outlet Syndrome
Thyroid Cancer
Thyroid Nodule
Transient Ischemic Attack (TIA)
Traumatic Brain Injury
Ulcerative Colitis
Umbilical Hernia
Varicose Veins Genital
Vascular Insufficiency of Intestines
Venous Hypertension
Ventral Hernia
Abdominoplasty
Abscess or Cyst Drainage or Aspiration
Abscess or Fluid Incision and Drainage
Aneurysm Repair
Angioplasty Vertebral Vessels
Aortic Repair
Arteriovenostomy for Renal Dialysis
Arteriovenous Fistula Repair
Arteriovenous Shunt Creation
Bone Marrow Biopsy
Bunion Surgery
Carotid Artery Stent Placement
Colectomy
Dressing and Debridement of Wound or Infection
Duodenal Polypectomy
Embolectomy, Thrombectomy, or Vessel Exploration
Endovascular Repair of Abdominal Aortic Aneurysm
Endovascular Repair of Aorta
Enterostomy (Laparoscopic or Open)
Excision of Rectal Tumor
Excision of Stomach Tumor
Excision, Shaving, or Destruction of Skin and Subcutaneous Tissue (incl. Mohs Micrographic Surgery), Tissue Transfer
Fecal Impaction Removal
Femoral Hernia Repair, Open
Gallbladder Removal
Gastric Bypass Surgery, Open
Gastrotomy
Hernia Repair
Incision and Removal of Foreign Object
Intestinal Transplant (incl. Enterectomy)
Laparoscopic Appendectomy
Laparoscopic Gallbladder Removal (Cholecystectomy)
Laparoscopic Gastric Bypass Surgery
Laparoscopic Incisional Hernia Repair
Laparoscopic Inguinal Hernia Repair
Laparoscopic Umbilical or Ventral Hernia Repair
Laparotomy
Lymph Node Biopsy or Excision
Lymphedema Therapy
Meniscus Surgery
Open Appendectomy
Open Gallbladder Removal (Cholecystectomy)
Open Incisional or Ventral Hernia Repair
Open Inguinal Hernia Repair
Port Placements or Replacements
Proctectomy
Pyloromyotomy
Removal of Arteriovenous Shunt for Renal Dialysis
Removal or Destruction of Rectal or Intestinal Tumor (incl. Colonoscopy, Proctosigmoidoscopy, Sigmoidoscopy and Control of Hemorrhage)
Revision of Arteriovenous Shunt for Renal Dialysis
Skin Grafts
Splenectomy
Splenectomy and Splenorrhaphy
Thoracentesis
Thromboendarterectomy or Excision of Infected Graft
Thyroidectomy
Thyroidectomy or Thyroid Lobectomy
Tracheal Surgery
Vascular Transcatheter Embolization
Wound Repair

Insurance Accepted

* Please verify this information when scheduling an appointment.
  • GHI CBP
    HIP Prime HMO
  • Wellspan Health PPO
    Capital Blue Cross PPO
    Capital Blue Cross
  • Flex Connecticut EPO
    Passage HMO
  • Choice Care PPO
    Choice POS
    Choice Care Network PPO
  • MagnaCare PPO
  • Cigna PPO
    Open Access Plus
  • Select
    Open Choice PPO
    Choice Plus POS II
    Premier Care Network Plus - Innovation Health
    Managed Choice (Open Access) POS
    Elect Choice (Open Access) EPO
    Savings Plus of Metro, NY
    Aetna HMO
  • Fidelis Care
  • MVP Health Care HMO
    MVP Health Plan EPO
  • SimplyBlue/Simply Blue Plus PPO
    BluePPO HSA PPO
  • Navigate HMO
    Navigate POS
    Options PPO
    Choice Plus POS
    Nexus Open Access
  • Community Blue PPO
    BCBS PPO
    PPOBlue PPO
    Performance Blue
  • Personal Choice PPO
  • Empire Hospital/Medical (Trad)
    Empire Hospital
    Blue Acess Employer Sponsored
    Connection Employer Sponsored
  • Blue Card PPO

Locations

  1. 1 Office
    30 Harrison St Ste 455, Johnson City, NY 13790
    Icon Directions Right Arrow Directions Phone Icon (607) 763-8100
  2. 2 Office
    346 Grand Ave, Johnson City, NY 13790
    Icon Directions Right Arrow Directions Phone Icon (607) 763-8100

Patient Satisfaction

Likelihood to recommend Dr. Brennan
3.8
Based on 19 Reviews
5 Stars (13)
4 Stars (0)
3 Stars (0)
2 Stars (1)
1 Star (5)

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Patient Reviews
Jul 29, 2024
Dr. Brennan removed my gallbladder over one year ago. He was referred to me by a friend (colleague) who had personal experience with his surgical skills. I was, and continue to be, very happy with the results.
— Jul 29, 2024
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Photo: Dr. Mark Brennan, DO
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Dr. Brennan's Office & Staff

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About Me

Specialties*
Vascular Surgery
Specialties*
  • *Sharecare does not verify qualifications for medical specialties. Please verify your provider's specialty and qualifications directly with your provider and applicable medical board.
Education

Education

Medical Education
  • PHILADELPHIA COLLEGE OF OSTEOPATHIC MEDICINE
    1994
Medical Education

Board Certifications

Board Certifications
  • General Surgery and General Vascular Surgery
Board Certifications
What’s a board certification and why is it important that my provider has one?

A board certification represents a provider’s dedication to ongoing training in one or more specialties, including the completion of intensive exams. While not all specialties have board certifications, if your provider does have one they’ve taken the extra step to master their specialty and to keep up with the latest advancements in their field.
Common Questions and Answers
Responses are sourced directly from patients.
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Frequently Asked Questions

Find contact information here to make an appointment.

A list of accepted insurance providers is available on the Sharecare insurance check. It is always a good idea to verify your insurance when making an appointment.

New patients are generally accepted by Dr. Mark Brennan, DO. To arrange an appointment, call the number on Dr. Brennan's profile.

Dr. Brennan frequently treats the following conditions: Peripheral Vascular Disease (PAD and PVD). See more on Sharecare.

Dr. Mark Brennan, DO is affiliated with Chenango Memorial Hospital and UHS Binghamton General Hospital.

Yes, Dr. Mark Brennan, DO holds board certification in General Surgery and General Vascular Surgery.

Hospital Affiliations

  • Chenango Memorial Hospital

    179 N Broad St, Norwich, NY

  • UHS Binghamton General Hospital

    10-42 Mitchell Ave, Binghamton, NY