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Lauren Brennan

Lauren Brennan, CRNP, DNP

Gastroenterology

Accepting New Patients

Highlights

Age Groups Seen

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

Languages

  • English

Gender

Female

Johns Hopkins Affiliations:

  • Johns Hopkins School of Medicine

About Lauren Brennan

Johns Hopkins Clinician

Logo for Johns Hopkins Clinician

Background

Lauren Brennan is a family nurse practitioner with advanced clinical expertise in gastroenterology and a strong foundation in surgical and medical nursing. She has experience providing high-quality, patient-centered care to individuals with a wide range of acute and chronic gastrointestinal conditions in both inpatient and outpatient settings. Her clinical approach is rooted in evidence-based practice, holistic care and a commitment to health equity and inclusion.

Brennan earned a Bachelor of Science degree in nursing from St. Petersburg College in Florida and a Master of Science degree in nursing from the George Washington University in Washington, D.C. She earned her Doctor of Nursing Practice degree with an executive leadership focus and a post-master’s certificate in nursing education from The Johns Hopkins University.

Throughout her career, Brennan has held leadership roles, contributed to quality improvement initiatives, and served on interdisciplinary committees focused on infection control, staff development and patient safety.

Locations

  1. Johns Hopkins Endoscopy & Surgery Center - Columbia
  2. Levi Watkins, Jr., M.D., Outpatient Center

Expertise

Education

  • Graduate School: Johns Hopkins University School of Nursing, DNP, 2023
  • Graduate School: The George Washington University, Family Nurse Practitioner, MSN, 2021

Board Certifications

  • Family Nurse Practitioner: American Nurses Credentialing Center (ANCC), 2021

Insurance

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

Ratings & Reviews

4.8 out of 5

110 ratings, 42 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 3/11/2026

    Very friendly, very concerned, very knowledgeable

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

    She was very friendly and compassionate.

    5 out of 5 stars
    Reviewed on 3/4/2026

    More attentive than other providers I have seen, she listened and took time with me and did not make it seem rushed

    5 out of 5 stars
    Reviewed on 2/24/2026

    Always helpful and caring.

    5 out of 5 stars
    Reviewed on 2/19/2026

    Knowledgeable, courteous, efficient

    5 out of 5 stars
    Reviewed on 12/16/2025

    This was a meet and greet. Very thorough and informative.

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

    Great rapport and great listener

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

    She was nice n respectful n professional n funny n pretty

    3 out of 5 stars
    Reviewed on 11/25/2025

    She didn't understand why the surgeon didn't go over details with me. So my provider did as she was getting caught up while I was there. I gave her my list of supplements because no one else wanted them. She Googled one of those and said it was good that I was taking it.

    5 out of 5 stars
    Reviewed on 11/24/2025

    Knowledgeable , through and pleasant .

    5 out of 5 stars
    Reviewed on 11/13/2025

    Great listener, explained everything very well, competent, efficient, and knowledgeable.

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

    The provider was very friendly and spent enough time with me reviewing my condition.

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

    This was my very first visit to the facility and my very first visit with the provider. Lauren was very nice, explained everything to me and provided multiple options to make me feel comfortable as well as informed.

    5 out of 5 stars
    Reviewed on 10/9/2025

    Dr. Brennan diagnosed and recommended treatment for my health issues. I'm satisfied that she used best medical practices and set me on a proper course for improvement.

    5 out of 5 stars
    Reviewed on 9/30/2025

    Lauren was very polite professional friendly and informative. She made me feel very at ease.

    5 out of 5 stars
    Reviewed on 9/24/2025

    The provider I saw that day was very helpful and plan on seeing her again

    5 out of 5 stars
    Reviewed on 9/18/2025

    Very attentive and knowledgable

    5 out of 5 stars
    Reviewed on 9/17/2025

    She was very friendly and addressed my concerns.

    5 out of 5 stars
    Reviewed on 9/11/2025

    Lauren Brennan was extremely helpful and thorough in bringing clarity to a confusing situation created by a frequent change in physicians. She quickly assessed the situation and took corrective action keeping me fully informed as to what needed to happen next. She provided complete verbal and written instructions and ensured I understood them. I was very happy with her professionalism and knowledge as well as her effective approach.

    5 out of 5 stars
    Reviewed on 8/27/2025

    Lauren Brennan was, without doubt, the absolute best practitioner that I have gone to in years!

    5 out of 5 stars
    Reviewed on 8/20/2025

    One of the very best visits I have had. She is excellent and a real asset to Hopkins. Professional, knowledgeable, listened, empathetic, and all around outstanding

    5 out of 5 stars
    Reviewed on 8/12/2025

    Lauren was great. She listened, engaged me with follow-up questions, and discussed all my concerns with seriousness and good humor.

    5 out of 5 stars
    Reviewed on 8/11/2025

    Lauren Brennan treated me incredibly well and took her time listening to me. She took my concerns seriously and I feel she will help me figure out what is medically wrong with me. She was an absolutely wonderful provider and I would recommend her to anybody needing a GI

    5 out of 5 stars
    Reviewed on 8/7/2025

    Thank you

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

    Very friendly, good bedside manner. Apologetic about being late/me waiting in room for a long time.

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

    Excellent service

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

    I feel so fortunate that Lauren Brennan was available when I needed an appointment. The exam, advice, follow up - every aspect of this encounter was so exceptional that it's difficult to put in words how, without writing more than you would want to read! She is an amazingly talented, articulate, compassionate, efficient, and thorough physician.

    5 out of 5 stars
    Reviewed on 7/30/2025

    Lauren had the best bed side manner, she listened to all of my concerns and did not dismiss anything I said. She was very caring and I felt comfortable talking to her.

    5 out of 5 stars
    Reviewed on 7/29/2025

    Lauren was INCREDIBLE. She was attentive and kind. I felt listened to and cared for.

    5 out of 5 stars
    Reviewed on 7/29/2025

    Lauren Brennan was polite, knowledgeable, and caring about me and my up and coming colonoscopy.

    4 out of 5 stars
    Reviewed on 7/24/2025

    I came in for a rectal examination because of discomfort I am experiencing. The provider was very nice, but quite nervous.

    5 out of 5 stars
    Reviewed on 7/22/2025

    Excellent

    5 out of 5 stars
    Reviewed on 7/10/2025

    Dr Brennan was possibly the best doctor I have ever had at John's Hopkins. I have had some really bad experiences with John's Hopkins doctors but this lady is truthfully the best

    5 out of 5 stars
    Reviewed on 7/2/2025

    Excellent. Felt very comfortable with her. She is kind and personable and took an extensive health history.

    5 out of 5 stars
    Reviewed on 7/2/2025

    My provider was kind and explained things in a way that I could understand.

    5 out of 5 stars
    Reviewed on 7/1/2025

    My provider is very nice and apologized for seeing me so late

    5 out of 5 stars
    Reviewed on 6/18/2025

    She was very nice and knowledgeable.

    5 out of 5 stars
    Reviewed on 6/10/2025

    I was very please with her kindness compassion and how well she explained things to me ,I left feeling less scared about having my percedure.

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

    Very nice and helpful good

    2 out of 5 stars
    Reviewed on 5/30/2025

    I know that she is good because my doctor recommended her

    5 out of 5 stars
    Reviewed on 5/19/2025

    Very professional and listened to me.

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

    Lauren Brennan and I accomplished as much as we would in person except she couldn't touch my tummy to feel how full my clogged bowel is, but my stool description was sufficient to expedite a colonoscopy based on family history and years of polyps removed from me.