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Dr. John Brennan, MD

Orthopedic Surgery* Age 57
Dr. John Brennan, MD
4.8 (80 Ratings)

Offers telehealth

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Dr. John Brennan, MD is an Orthopedic Surgeon in East Setauket, NY.
Dr. John Brennan, MD
4.8 (80 Ratings)
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Dr. John Brennan, MD

Orthopedic Surgery* Age 57
East Setauket, NY
Accepting new patients

Offers telehealth

Dr. John Brennan, MD is an Orthopedic Surgeon in East Setauket, NY.

About

Dr. John Brennan, MD is an Orthopedic Surgeon in East Setauket, NY. They currently practice at Practice and are affiliated with St Charles Hospital, St. Catherine of Siena Hospital and Stony Brook University Hospital. Dr. Brennan has experience treating conditions like Joint Pain and Osteoarthritis among other conditions at varying frequencies. At present, Dr. Brennan received an average rating of 4.8/5 from patients and has been reviewed 80 times. Their office accepts new patients and telehealth appointments. Dr. Brennan is board certified in Orthopaedic Sports Medicine and accepts multiple insurance plans.

Offers Telehealth

This provider offers telehealth appointments. Call the office to schedule.

Explains Conditions Well

Patients said this doctor explains conditions well.

Trustworthy

Patients said this doctor is trustworthy.

Friendly Staff

Patients said the staff was friendly.

Easy Scheduling

Patients said scheduling was easy.

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Experience Check

Enter a condition or procedure
Joint Pain
Arthrocentesis
Osteoarthritis
Joint Pain
Arthrocentesis
Osteoarthritis
Joint Pain
Arthrocentesis
Osteoarthritis
Osteoarthritis of Knee
Knee Arthroscopy
Rotator Cuff Surgery
Adhesive Capsulitis Shoulder
Ankle Fracture
Back Pain
Baker’s Cyst
Broken Arm
Bursitis
  • View other providers who treat Bursitis
Bursitis of Hip
Carpal Tunnel Syndrome
Cervical Radiculopathy
Chondrocalcinosis
Chondromalacia
Chronic Neck Pain
Degenerative Disc Disease
Femur Fracture
Fibular Fracture
Glenoid Labrum Tear
Herniated Disc
Hip Fracture
Hip Sprain
Hip Tendinitis
Humerus Fracture
Internal Derangement of Knee
Intervertebral Disc Disease
Knee Ligament Tears
Knee Sprain
Knee Tendinitis
Lateral Epicondylitis
Leg Fracture Below Knee (incl. Ankle)
Limb Pain
Low Back Pain
Lumbar Radiculopathy
Lumbar Spinal Stenosis
Lumbosacral Stenosis
Medial Collateral Ligament (MCL) Sprain
Meniscus Tear
Nerve Root Injury and Plexus Disorders (incl. Pinched Nerve)
Osteoarthritis of Hand
Osteoarthritis of Hip
Osteoarthritis of Shoulder
Osteoarthritis of Spine
Patellar Chondromalacia
Patellar Disorders
Patellofemoral Pain Syndrome (PFPS)
Radiculopathy
Rotator Cuff Tear
Rotator Cuff Tendinosis
Sciatica
  • View other providers who treat Sciatica
Shoulder Fracture
Shoulder Impingement Syndrome
Shoulder Tendinitis and Tenosynovitis
Spinal Osteophyte
Spinal Stenosis
Spondylolisthesis
Tibial Fracture
Trigger Finger
Hip Replacement
Hip Replacement with Robotic Assist
Knee Replacement
Meniscectomy
Partial Knee Replacement
Peripheral Nerve Block
Shoulder Arthroscopy
Steroid Injection
Total Knee Arthroplasty with Robotic Assist
Trigger Finger Release
Viscosupplementation With Hyaluronate
AC Joint Injury
Achilles Tendinitis
Ankle Sprain and Achilles Tendon Sprain or Rupture
Ankle Sprains and Strains
Ankylosing Spondylitis
Anterior Cruciate Ligament (ACL) or Posterior Cruciate Ligament (PCL) Tear
Anterior Cruciate Ligament (ACL) Tear
Arthritis
Arthritis of the Elbow
Autoimmune Diseases
Avascular Necrosis
Avascular Necrosis of Femoral Head
Bone Cancer
Bone Disorders
Bone Spur
Brachial Plexus Palsy
Bunion
  • View other providers who treat Bunion
Cancer
  • View other providers who treat Cancer
Cartilage Tear
Cervical Spine Myelopathy
Chronic Pelvic Pain
Clavicle Fracture
Coccygeal Pain
Coccyx Fracture
Coccyx or Sacrum Fracture
Complex Regional Pain Syndrome (CRPS)
Complications of Joint Prosthesis
De Quervain's Disease
Difficulty With Walking
Dislocated Joint
Elbow Bursitis
Elbow Injuries
Elbow Sprain
Enthesopathy of Hip (incl. Trochanteric Bursitis)
Enthesopathy of Knee (incl. Bursitis of Knee)
Femoral Neck Fracture
Femoral Stress Fracture
Foot Conditions
Foot Fracture
Foot Sprain
Fracture
  • View other providers who treat Fracture
Fracture of Hand and Fingers
Gait Abnormality
Ganglion Cyst
Genu Valgum
Gout
  • View other providers who treat Gout
Hammer Toe
Hand Conditions
Hand Fracture
Heel Spur
Hip Dysplasia
Hip Pointer
Iliotibial Band Syndrome
Knee Dislocation
Knee Disorders
Knee Fracture
Lateral and Medial Epicondylitis (Tennis and Golf Elbow)
Lateral Collateral Ligament (LCL) Sprain
Leg Fracture Above Knee (incl. Hip)
Lumbar Compression Fracture
Lumbar Spine Fracture
Lumbosacral Radiculopathy
Lupus
  • View other providers who treat Lupus
Marfan Syndrome
Medial Epicondylitis
Morton's Neuroma
Myelopathy
Neck Muscle Strain
Neck Strain (incl. Whiplash Injury)
Nerve Sheath Tumors
Non-Traumatic Rupture of Achilles Tendon
Non-Unions and Malunions of Fractures
Osgood Schlatter Disease
Osteoarthritis of Ankle
Osteoarthritis of Foot
Osteoarthritis of Hand or Wrist
Osteoarthritis of Hip and Thigh
Osteoarthritis of Wrist
Osteochondritis Dissecans
Osteopenia
Osteosarcoma
Patellar Fracture
Patellar Tendonitis
Pathological Spine Fracture
Pelvic Fracture
Peripheral Nerve Disorders
Piriformis Syndrome
Plantar Fasciitis
Posterior Tibial Tendonitis
Pseudoarthrosis
Pyogenic Arthritis
Reiter's Syndrome (Reactive Arthritis)
Repeated Shoulder Dislocation
Rheumatoid Arthritis
Rib Fracture
Rupture of Achilles Tendon
Sacral Fracture
Sacrum Disorders
Schmorl's Nodes
Scoliosis
Shoulder Dislocation
Shoulder Disorders
Sjögren's Syndrome
Spina Bifida
Spinal Cord Injury
Spinal Muscular Atrophy (SMA)
Spinal Stenosis with Neurogenic Claudication
Spine Deformities
Spine Disorders
Spine Fractures, Traumatic
Spondylitis
Spondylosis
Sprains and Strains (incl. Muscle Tear)
Systemic Chondromalacia
Tarlov Cyst
Tenosynovitis
Thoracic Spine Fracture
Thoracic Stenosis
Thoracolumbar Radiculopathy
Tibia and Fibula Fractures
Tibia or Fibula Stress Fracture
Wrist Fracture
Wrist Sprain or Strain
ACL Surgery
Arm Surgery
Arthroscopic Shoulder Surgery
Biceps Tendon Repair
Carpal Tunnel Release
Closed Hip Fracture Treatment
Excision of Ganglion
Foot Fracture Treatment Closed
Fracture Care
Hip Dislocation
Hip Replacement Revision
Joint Drainage
Knee and Leg Fracture and Dislocation Treatment
Knee and Lower Leg Fracture Treatment, Closed
Knee and Lower Leg Fracture Treatment, Open
Knee Replacement Revision
Knee Surgery
Labrum Repair
Open Hip Fracture Treatment
Shoulder Dislocation Treatment
Shoulder Fracture and Dislocation Treatment
Shoulder Fracture Treatment
Trigger Point Injection
Wound Repair

Insurance Accepted

* Please verify this information when scheduling an appointment.
  • Aetna HMO
    APCN Open Access Aetna Select
    Choice Plus POS II
    Elect Choice (Open Access) EPO
    Managed Choice (Open Access) POS
    Open Choice PPO
    Premier Care Network APCN Choice (OAMC) POS II
    Premier Care Network Plus - Innovation Health
    Savings Plus of Metro, NY
    Select
  • Blue Cross Blue Shield of Massachusetts PPO
  • Blue Card PPO
  • National EPO
  • Cigna HMO
    Cigna PPO
    Open Access Plus
  • Flex Connecticut EPO
    Passage HMO
  • GHI CBP
    HIP Prime HMO
  • Blue Acess Employer Sponsored
    Connection Employer Sponsored
    Empire Blue Cross Blue Shield PPO
    Empire Hospital
    Empire Hospital/Medical (Trad)
  • BluePPO HSA PPO
    SimplyBlue/Simply Blue Plus PPO
  • First Health (Coventry Health Care) PPO
  • Pro Plans EPO
    Pro Plus Plans EPO
    Total Plans EPO
  • BCBS PPO
  • MagnaCare PPO
  • MVP Health Plan EPO
  • Oscar Circle EPO
  • Freedom
    Liberty
  • Choice Plus POS
    Navigate HMO
    Navigate POS
    Nexus Open Access
    Options PPO

Locations

  1. 1 Orthopedic Associates of Long Island LLP
    6 Technology Dr Ste 100, East Setauket, NY 11733
    Icon Directions Right Arrow Directions Phone Icon (631) 689-6698
    Monday
    09:00 - 17:00
    Tuesday
    09:00 - 17:00
    Wednesday
    09:00 - 17:00
    Thursday
    09:00 - 17:00
    Friday
    09:00 - 17:00
  2. 2 St. Charles Hospital
    200 Belle Terre Rd, Port Jefferson, NY 11777
    Icon Directions Right Arrow Directions Phone Icon (631) 474-6000

Patient Satisfaction

Likelihood to recommend Dr. Brennan
4.8
Based on 80 Reviews
5 Stars (75)
4 Stars (1)
3 Stars (0)
2 Stars (1)
1 Star (3)

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Patient Reviews
Nov 21, 2023
My family has used Dr Brennan's services in the past. We think he's the best. I recently had arthroscopic surgery on a torn meniscus. He informed me of ALL my options before the surgery and I was treated very well. I was seen in a timely manner and my surgery went off without a single problem. He has a great bedside manner and I would definitely go to him again.
Denise M Smith — Nov 21, 2023
See more reviews on Healthgrades
Photo: Dr. John Brennan, MD
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Dr. Brennan's Office & Staff

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  • Staff friendliness and courteousness
  • Total wait time (waiting & exam rooms)

Experience with Dr. Brennan

  • Level of trust in provider's decisions
  • How well provider explains medical condition(s)
  • How well provider listens and answers questions
  • Hpends appropriate amount of time with patients

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Telehealth Options
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(631) 689-6698

About Me

Specialties*
Orthopedic Surgery
Sports Medicine
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

Board Certifications

Board Certifications
  • Orthopaedic Sports Medicine and Orthopedic 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.

Internship

Internship
  • St Lukes Roosevelt Hospital Center
Internship
Common Questions and Answers
Responses are sourced directly from patients.
Does Dr. Brennan communicate via email?
1 user said yes.
Yes
(1)
No
(0)
Does Dr. Brennan offer telehealth services or virtual visits?
1 user said yes.
Yes
(1)
No
(0)
Does Dr. Brennan offer an online patient portal?
1 user said yes.
Yes
(1)
No
(0)
Does Dr. Brennan have free onsite parking?
1 user said yes.
Yes
(1)
No
(0)
Does Dr. Brennan offer weekend visits?
1 user said yes.
Yes
(1)
No
(0)
Does Dr. Brennan offer evening visits?
1 user said yes.
Yes
(1)
No
(0)
Does Dr. Brennan specialize in working with children or adolescents?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Brennan specialize in working with seniors?
No responses yet.
Yes
(0)
No
(0)
Does Dr. Brennan specialize in couples therapy?
No responses yet.
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(0)
No
(0)
Does Dr. Brennan specialize in working with LGBTQ+ community?
No responses yet.
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(0)
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Does Dr. Brennan accept insurance?
No responses yet.
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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. John Brennan, MD. To arrange an appointment, call the number on Dr. Brennan's profile.

Dr. Brennan frequently treats the following conditions: Joint Pain and Osteoarthritis. See more on Sharecare.

Dr. John Brennan, MD is affiliated with St Charles Hospital, St. Catherine of Siena Hospital and Stony Brook University Hospital.

Yes, Dr. John Brennan, MD holds board certification in Orthopaedic Sports Medicine and Orthopedic Surgery.

Hospital Affiliations

  • St Charles Hospital

    200 Belle Terre Rd, Port Jefferson, NY

  • St. Catherine of Siena Hospital

    50 Route 25A, Smithtown, NY

  • Stony Brook University Hospital

    101 Nicolls Rd, Stony Brook, NY