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Andrew Gilmartin

Andrew Gilmartin, MD

Internal Medicine

Accepting New Patients
Online Booking
Video Visit
Need help scheduling? Call 973-575-5540

Highlights

Age Groups Seen

  • Adult 21-65
  • Older Adult >65

Languages

  • English

Gender

Male

About Andrew Gilmartin

Professional Statement

“We have a wealth of resources at Changebridge that support physician-patient communications to ensure a timely flow of information.” Whether it’s counseling a patient on how to lose weight or educating a patient about substance abuse, Dr. Andrew Gilmartin thrives on helping people live longer, healthier lives. “Many serious diseases – from COPD to hypertension – can be made better or even prevented by following a healthy lifestyle and keeping weight under control,” he says. “It takes a lot of coaching and discipline for patients to begin, and keep making, healthy lifestyle choices, but they see a real difference in their health when they do.” From a young age, Dr. Gilmartin knew that he wanted to practice medicine. He was always interested in science, and particularly how the body works. His mother worked as a physician assistant, giving him the perfect opportunity to learn firsthand about medicine. When he was old enough to choose a career path, he set his sights on medical school, and then became the first doctor in his family. He chose internal medicine because of the variety. “A lot of times, doing the detective work to make the correct diagnosis is like solving a puzzle,” he says. Patients tell him that they appreciate his detailed, easy-to-understand explanations. “An educated patient is a compliant patient,” says Dr. Gilmartin. “My goal is to help them understand their condition so that they can partner in their treatment.” When he is not working as a partner at Changebridge, Dr. Gilmartin enjoys spending time with his family. During the summer, you can find him sailing competitively with the Hunterdon Sailing Club out of the Spruce Run Reservoir in Clinton, NJ.

Locations

    • phone: 973-575-5540
    • fax: 973-575-4885
    • phone: 973-696-1087
    • fax: 973-686-1916

Expertise

Education

  • Residency: OSF St. Francis Medical Center, Internal Medicine, 2012
  • Internship: OSF St. Francis Medical Center, Internal Medicine, 2010
  • Medical School: St George's University School of Medicine, No Value Specified, 2008

Board Certifications

  • Internal Medicine: American Board of Internal Medicine, 2014

Insurance

Please contact the doctor's office directly to confirm acceptance of insurance.
Search plans
  • Aetna
  • Amerihealth
  • Cigna
  • Claritev
  • Clover
  • Consumer Health Network
  • Emblem Health - GHI
  • First MCO
  • Horizon Blue Cross Blue Shield
  • Humana
  • Humana Military
  • Magnacare
  • Medicare
  • Oxford (UHC)
  • Qualcare - Oscar
  • RR Medicare
  • United Healthcare
  • US Family Health Plan

Ratings & Reviews

5 out of 5

268 ratings, 51 reviews

The Patient Satisfaction Rating is an average of all responses to the care provider related questions shown below from our survey. Patients that are treated in outpatient or hospital environments may receive different surveys, and the volume of responses will vary by question.

Search reviews
    5 out of 5 stars
    Reviewed on 4/1/2026

    Great and knowledgeable Doctor. The man is compassionate, and able to explain medical issues in layman's terms.

    5 out of 5 stars
    Reviewed on 4/1/2026

    Always a good checkup. Dr. Gilmartin is great at answering any medical questions you may have. He is patient and through in his examination and in listening. A very good primary doctor.

    5 out of 5 stars
    Reviewed on 4/1/2026

    Dr. Gilmartin takes the time to listen and goes over results and my next steps.

    5 out of 5 stars
    Reviewed on 3/1/2026

    5 out of 5 stars
    Reviewed on 3/1/2026

    Love going to the Office. Staff and Dr. Gilmartin are so pleasant!! Good bedside manners!! I love the communication system as well- a phone call and text messages. You can never say you didn't get follow up reminders for appointments and updates. 10/10.

    5 out of 5 stars
    Reviewed on 3/1/2026

    He is the best primary Dr. I ever had. Very knowledgeable & pleasant.

    5 out of 5 stars
    Reviewed on 3/1/2026

    Really talks with you and addresses all concerns. Love him!

    5 out of 5 stars
    Reviewed on 3/1/2026

    He doesn’t rush the appointment. Takes time to answer any questions you may have.

    5 out of 5 stars
    Reviewed on 3/1/2026

    Listen to what I have to say very nice Dr.

    5 out of 5 stars
    Reviewed on 3/1/2026

    Dr Gilmartin is very thorough and professional

    5 out of 5 stars
    Reviewed on 2/1/2026

    Very pleased with Dr Gilmartin. He’s very knowledgeable and took the time to understand my injury and a good solid approach to treating it. Staff was courteous, knowledgeable, and had good teamwork. They got me in, evaluated, looked at by the Dr.,had my paperwork and done in 45 minutes and I did not feel rushed at all, and my concerns were met and exceeded.

    5 out of 5 stars
    Reviewed on 2/1/2026

    Dr Gilmartin was very thorough with physical examination and very informative.

    5 out of 5 stars
    Reviewed on 2/1/2026

    New patient visit. Dr. Gilmartin was pleasure to speak with. Look forward to future care visits.

    5 out of 5 stars
    Reviewed on 2/1/2026

    Outstanding he is terrific.

    5 out of 5 stars
    Reviewed on 2/1/2026

    Dr Gilmartin is wonderful and very knowledgeable . Listens and takes time to explain everything .

    5 out of 5 stars
    Reviewed on 2/1/2026

    Best doctor I ever had.

    5 out of 5 stars
    Reviewed on 2/1/2026

    Dr.Gilmartin is a very knowledgeable doctor. He's very intelligent and is very passionate about his job.

    5 out of 5 stars
    Reviewed on 2/1/2026

    Dr. Gilmartin LISTENS & comments, recommends or whatever is needed! ����������������.

    5 out of 5 stars
    Reviewed on 1/1/2026

    Doctor Gilmartin excellent, doctor good at follow-ups issues, staff great clean offices

    5 out of 5 stars
    Reviewed on 1/1/2026

    Excellent

    5 out of 5 stars
    Reviewed on 1/1/2026

    Thankful to have Dr Gilmarten as my physician. He is always proffesional and knowledgeable when it comes to my treatment Never rushes the exam and always answers all my questions fully making sure I understand the answers The staff follows in his footsteps If you need a great Medical Practice with excellant Service Dr. Gilmarten and Changebridge Medical Services is the place to go.

    5 out of 5 stars
    Reviewed on 1/1/2026

    The doctor was thorough, responsive, and took the time to answer all questions and address my concerns. I appreciate the level of care and attention provided.

    5 out of 5 stars
    Reviewed on 1/1/2026

    Dr. Gilmartin listened to me and also gave me some good advice.

    5 out of 5 stars
    Reviewed on 12/1/2025

    Excellent visit, very helpful.

    4 out of 5 stars
    Reviewed on 12/1/2025

    None at this time

    5 out of 5 stars
    Reviewed on 12/1/2025

    Knowledgeable & Kind Perfect

    5 out of 5 stars
    Reviewed on 12/1/2025

    Wonderful doctor

    5 out of 5 stars
    Reviewed on 12/1/2025

    Very thorough and pleasant

    5 out of 5 stars
    Reviewed on 12/1/2025

    He is such a caring doctor. Always answers your questions . I would not drive down from PA if I didn't like him. He's the best!

    5 out of 5 stars
    Reviewed on 12/1/2025

    Always attentive to your needs and explains concerns in an easy to understand way.

    5 out of 5 stars
    Reviewed on 12/1/2025

    Dr Gil is the best

    5 out of 5 stars
    Reviewed on 11/1/2025

    Dr Gilmartin is the best

    5 out of 5 stars
    Reviewed on 11/1/2025

    Reviews my chart before he sees me - takes the time to listen and answer questions. Wonderful doctor

    5 out of 5 stars
    Reviewed on 11/1/2025

    Very professional answered questions very intrigued in my symptoms and conditions that I might or might not have was very flexible. Came up with a game plan and executed it so I could follow through.

    5 out of 5 stars
    Reviewed on 11/1/2025

    Professional but kind and very nice personality. Really understands his patients anxiety and health issues. I would highly recommend him to all my relatives and friends. He is a Super Doc!

    5 out of 5 stars
    Reviewed on 11/1/2025

    The doctor has continued to be kind, compassionate, understanding and I am so grateful for this because I have a medical condition that is so rare and it's far and few between doctors that have the patience to listen to me.

    5 out of 5 stars
    Reviewed on 10/1/2025

    He is very courteous and respectful and pleasant. He gives a lot of time and asks if you have other questions . He explains everything really well and he knows his field very well ! I’m glad he’s my doctor.

    5 out of 5 stars
    Reviewed on 10/1/2025

    Thorough and kind.

    5 out of 5 stars
    Reviewed on 9/1/2025

    Very informative and kind Doctor if feel I’m getting great care with his advice and treatment

    5 out of 5 stars
    Reviewed on 9/1/2025

    I've seen him for almost 9 years now as my Primary. He takes the time to listen, is always considerate and respectful, and answers all of my MANY questions. He's the kind of doctor who takes the whole person into account, not just focusing on the easy or obvious issue. Dr. Gilmartin keeps up to date with medical news and best practices, and doesn't gaslight me as a perimenipausal woman. He considers how my different conditions, stress levels, environment, and meds interact and makes informed recommendations. I particularly like that he treats me as a partner in my treatment instead of just a patient to instruct and push out the door. He's never minded or been insulted when I ask for details on potential side effects and treatment alternatives, truly considering my concerns. I am VERY happy with Dr. Gilmartin as my Primary!!! 1,000% recommend.

    5 out of 5 stars
    Reviewed on 9/1/2025

    Personable, good listener. Non-judgmental

    5 out of 5 stars
    Reviewed on 9/1/2025

    Super professional. Makes you feel comfortable and willing to listen to any concerns

    5 out of 5 stars
    Reviewed on 9/1/2025

    Dr Gilmartin was excellent today.

    5 out of 5 stars
    Reviewed on 9/1/2025

    He is a good listener and polite. Understands patients need and executes accordingly.

    5 out of 5 stars
    Reviewed on 9/1/2025

    Excellent doctor explains things well and is very nice.

    5 out of 5 stars
    Reviewed on 9/1/2025

    He’s been our doctor for over a decade and he’s the best. He listens closely and is thorough and patient. Excellent doctor!

    5 out of 5 stars
    Reviewed on 9/1/2025

    Very informative, good listener, patient at wase

    5 out of 5 stars
    Reviewed on 9/1/2025

    The Best

    5 out of 5 stars
    Reviewed on 8/1/2025

    Dr Gilmartin is excellent and kind.

    5 out of 5 stars
    Reviewed on 8/1/2025

    BERY EFFICIENT AND KNOWLEDGABLE.

    5 out of 5 stars
    Reviewed on 8/1/2025

    Looks you in the eyes when he speaks to you

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