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Mark Lazarev

Mark Lazarev, MD

Gastroenterology

Accepting New Patients
Online Booking

Highlights

Age Groups Seen

  • Young Adult 18-25
  • Adult 26-64
  • Older Adult 65+

Languages

  • English

Gender

Male

Johns Hopkins Affiliations:

  • Johns Hopkins School of Medicine Faculty

About Mark Lazarev

Primary Academic Title

Associate Professor of Medicine

Johns Hopkins Physician

Logo for Johns Hopkins Physician

Background

Dr. Lazarev joined Johns Hopkins from the Mount Sinai Medical Center in New York, where he completed the Present-Levison advanced inflammatory bowel disease fellowship.

A specialist in the diagnosis and management of Crohn's disease and ulcerative colitis, Dr. Lazarev has published numerous peer-reviewed articles, abstracts and chapters.

Recent News Articles and Media Coverage

Lab Website

Mark Lazarev Lab

  • The Mark Lazarev Lab performs clinical research on Inflammatory Bowel Disease.

Honors

Top Doctor, Baltimore Magazine, 1/1/20

Locations

  1. Johns Hopkins Health Care & Surgery Center - Green Spring Station, Lutherville
    • 2360 West Joppa Road, Joppa Concourse STE 205, Lutherville, MD 21093
    • Get Directions

Expertise

Education

  • Fellowship: The Mount Sinai Hospital, Gastroenterology, 2009
  • Fellowship: University of Pittsburgh Medical Center, Gastroenterology, 2008
  • Residency: Beth Israel Deaconess Medical Center, Internal Medicine, 2005
  • Medical Education: University of Pittsburgh School of Medicine, MD, 2002

Board Certifications

  • Gastroenterology: American Board of Internal Medicine, 2008

Insurance

Please contact the location directly to confirm your health plan is accepted.
Search plans
  • Aetna
  • CareFirst
  • Cigna
  • First Health
  • Geisinger Health Plan
  • HealthSmart/Accel
  • Johns Hopkins Health Plans
  • MultiPlan
  • Pennsylvania's Preferred Health Networks (PPHN)
  • Point Comfort Underwriters
  • Private Healthcare Systems (PHCS)
  • Veteran Affairs Community Care Network (Optum-VACCN)

Ratings & Reviews

4.9 out of 5

123 ratings, 48 reviews

The Patient Rating score is an average of all responses to physician related questions on the national CG-CAHPS Medical Practice patient experience survey through Press Ganey. Responses are measured on a scale of 1 to 5, with 5 being the best score. Comments are also gathered from our CG-CAHPS Medical Practice Survey through Press Ganey and displayed in their entirety. Patients are de-identified for confidentiality and patient privacy.

Overall Rating by Patient
Provider Listened Carefully
Provider Explained Things Clearly
Provider Knew Medical History
Provider Showed Respect
Provider Spent Enough Time
Search reviews
    5 out of 5 stars
    Reviewed on 2/23/2026

    Extremely thorough and knowledgeable

    5 out of 5 stars
    Reviewed on 2/13/2026

    First time seeing this doctor. Liked him a lot.

    5 out of 5 stars
    Reviewed on 2/6/2026

    This was my first visit to Hopkins and first visit to this provider and both him and the fellow knocked it out of the park! I felt seen, heard, and understood. This was my first medical experience that gave me hope for figuring out my condition!

    5 out of 5 stars
    Reviewed on 1/26/2026

    I always enjoy visiting Dr. Lazarev. Everyone is very friendly and professional.

    5 out of 5 stars
    Reviewed on 1/12/2026

    Dr Lazarev is superb in every way. He is an expert in the girl. He is knowledgeable. And has excellent bedside relationship with patients.

    5 out of 5 stars
    Reviewed on 1/12/2026

    Very knowledgeable, excellent experience!

    5 out of 5 stars
    Reviewed on 1/12/2026

    This Doctor has been with me over a year during a very difficult illness and I credit him for getting me through with his professional expertise

    5 out of 5 stars
    Reviewed on 1/12/2026

    Relaxed, personal, informed.

    5 out of 5 stars
    Reviewed on 1/9/2026

    Dr. Lazarev is the best !

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

    Good doctor

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

    He's the best!! Patient with the elderly,extremely knowledgeable and has great bedside manners.

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

    I had a good overall experience during this visit. Thanks.

    5 out of 5 stars
    Reviewed on 12/29/2025

    Very thorough and caring. Easy to talk with. Good listener. Keeps recent on medicine and procedures.

    5 out of 5 stars
    Reviewed on 12/29/2025

    Dr. Lazarev is very knowledgeable, courteous takes very good treatment for his patients.

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

    I like and highly respect this doctor and his P A. [staff] and administrative assistant, [staff].

    5 out of 5 stars
    Reviewed on 12/10/2025

    Dr Lazarev is a true professional. I definitely appreciate his care and attention to my health and well being.

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

    He spent a total of 5 minutes for our visit

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

    Dr. Lazarev and his team are very thorough and listen to my concerns.

    5 out of 5 stars
    Reviewed on 11/21/2025

    Dr. Lazarev continues to be great to work with on managing my condition. Very thorough and good at explaining things.

    5 out of 5 stars
    Reviewed on 11/7/2025

    Dr.Lazarev always listens to my concerns. I know I am getting the best possible treatment for my ulcerative colitis. I trust him with my csre.

    5 out of 5 stars
    Reviewed on 10/31/2025

    A most knowledgeable scholar of gastronomy medicine. They don't get any better.

    5 out of 5 stars
    Reviewed on 10/29/2025

    Very pleasant and he listens and I never feel rushed

    5 out of 5 stars
    Reviewed on 10/24/2025

    Best health care provider

    5 out of 5 stars
    Reviewed on 10/20/2025

    Dr. Lazarev is an outstanding professional who takes great care of all his patients. Dr. Lazarev is very attentive, thoughtful and kind. He always allows time for me to explain any medical issues of concern, and takes into account everything I say.

    5 out of 5 stars
    Reviewed on 10/3/2025

    1 ST. TIME MEETING THE DOCTOR AND I WAS REALLY IMPRESSED WITH HIM.

    5 out of 5 stars
    Reviewed on 10/3/2025

    Very helpful, very satisfied

    5 out of 5 stars
    Reviewed on 9/8/2025

    Excellent

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

    Dr. Lasarev is a caring , kind and very knowledgeable doctor. I am an oral surgeon and have been involved with medical professionals for over forty years. Dr. Lasarev is truly one of the very best , especially in the medical environment that is our current standard. I am thankful to have him as my GI doctor!!

    5 out of 5 stars
    Reviewed on 8/18/2025

    Dr lazarev and his team ([staff], [staff], and [staff]) are fantastic

    5 out of 5 stars
    Reviewed on 8/15/2025

    He's an excellent Dr!

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

    He really listened when I was explaining what was going on with me. He also explained his decisions.

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

    Very happy with the treatment I received.

    5 out of 5 stars
    Reviewed on 7/21/2025

    Dr Lazarev has been my GI doctor for 13 years. I trust his expertise and treatments and value his willingness to listen and engage me in decisions. He is friendly and responsive to questions promptly.

    5 out of 5 stars
    Reviewed on 7/18/2025

    Good

    5 out of 5 stars
    Reviewed on 7/14/2025

    Dr. Lazarev listened and spent the time needed to address my medical issues.

    5 out of 5 stars
    Reviewed on 6/27/2025

    Good provider, calm, listens

    5 out of 5 stars
    Reviewed on 6/27/2025

    Dr Lazarev is an excellent doctor. He is knowledgeable, spends time listening to my questions and concerns.

    5 out of 5 stars
    Reviewed on 6/20/2025

    I have been with Dr. Lazarev for many years and do not desire to change.

    5 out of 5 stars
    Reviewed on 6/20/2025

    Excellent

    5 out of 5 stars
    Reviewed on 6/9/2025

    He is caring, clear with his wording, and knowledgeable.

    5 out of 5 stars
    Reviewed on 6/2/2025

    Ever the pro.

    5 out of 5 stars
    Reviewed on 5/16/2025

    Dr. Lazarev is extremely: courteous, knowledgeable and patient in regard to answering all of my questions and addressing all of my concerns as they pertain to my health issues.

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

    Always good.

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

    Dr. Lazarev is a very good GI doctor. He listens and shows concerns for his patient.

    5 out of 5 stars
    Reviewed on 4/28/2025

    Dr. Lazarev is the best

    5 out of 5 stars
    Reviewed on 4/25/2025

    I feel I can trust my doctor to listen to me and do or suggest what is best for me and my health

    5 out of 5 stars
    Reviewed on 4/25/2025

    Dr. Lazarev is the reason I travel 3 hours for my ulcerative colitis. He has been treating me for many years and I trust him completely. Dr. Lazarev truly cares about my well being.

    5 out of 5 stars
    Reviewed on 4/16/2025

    No instructions from a nurse. I love Dr Lazarev, but he is always so busy and it it is hard to know when to talk to him when I am ill, BUT he has helped me tremendously with quite a few things after dealing with 14+ years of colitis . I am extremely grateful to him, but we are still working on a few things.