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(212) 644-9100Mon–Thu, 9am–5pm425 Madison Avenue
Gut Health · Madison Avenue

Let’s Make Sense of
Your Digestive Symptoms.

Bloating, reflux, or changes in your bowel habits? Get a physician-led assessment, testing when useful, and a practical plan for treatment and follow-up.

  • Physician-Led Assessment
  • Targeted Testing
  • Ongoing Follow-Up

15 minutes · No obligation · Or call (212) 644-9100.

The Gut–Brain Connection

Your Symptoms
Need Context.

Your gut and brain communicate in both directions, influencing digestion and how you experience symptoms. Your health history, eating patterns, medications, and stress also belong in the conversation.

We review those details to understand what needs further investigation and which changes or treatments may help.

What We Evaluate

Digestive Concerns
We Evaluate.

Also tell us about fatigue, brain fog, skin or mood changes, difficulty managing weight, frequent illness, or joint discomfort. These concerns can have many causes and deserve a broader assessment.

  • Bloating and gas
  • Constipation
  • Diarrhea
  • Acid reflux
  • Discomfort or other symptoms after eating
Gut Health Testing

Testing With
a Clear Purpose.

Your physician recommends tests based on your symptoms and history. Before ordering, we explain what each test measures, its limitations, and its cost.

01

Microbiome Analysis

Stool testing examines selected microbes and patterns. Results are interpreted alongside your symptoms, medical history, and other findings.

02

GI Inflammation Markers

Tests such as stool calprotectin help assess intestinal inflammation and whether further evaluation is needed.

03

Digestive Function

Selected tests assess digestive enzyme activity and signs of poor absorption when your symptoms suggest a reason to investigate.

04

Pathogen Detection

Targeted testing looks for specific infections when symptoms, travel history, or exposures suggest a need.

05

Food Sensitivity Panels

Discuss food-related symptoms and appropriate testing. IgG panels are not recommended for diagnosing food allergy or intolerance.

06

SIBO Breath Testing

Breath testing can support an assessment for small intestinal bacterial overgrowth when your symptoms and history warrant it.

Your Plan

A Plan You Can
Put Into Practice.

Your recommendations may include nutrition changes, medication, selected supplements, or further evaluation. We explain what to begin, what to monitor, and when to review your progress.

  • 01

    Nutrition Guidance

    Make targeted food and meal-pattern changes, with guidance on maintaining a varied diet that meets your nutritional needs.

  • 02

    Treatment When Indicated

    Review medication or supplement options based on your assessment, including expected benefits, risks, and how to monitor your response.

  • 03

    Follow-Up That Tracks Your Symptoms

    Review bowel patterns, discomfort, food tolerance, and daily wellbeing. Adjust your plan or investigate further when needed.

The Process

How We Work Together.

  1. 01

    Tell Us What’s Happening.

    Review your symptoms, when they began, what seems to trigger them, and what you’ve already tried.

  2. 02

    Choose Useful Testing.

    Your physician explains which tests may help, how to prepare, and how the results could guide your care.

  3. 03

    Understand Your Plan.

    Leave with specific recommendations for nutrition, treatment, and daily habits, plus a clear follow-up schedule.

  4. 04

    Review and Adjust.

    Discuss what’s improving and what remains difficult. Reassess treatment and consider further testing or specialist care when appropriate.

Dr. Ruth Johnson and Dr. Ninoschka Sevillano in white coats in the Genesis Health office
Expert Care

Your Care Team.

Dr. Ruth Johnson, MD

Founder & Lead Physician

Dr. Ninoschka Sevillano

Functional Medicine Specialist

Briana Bennet

Clinical Medical Assistant

Fairuz Abdalla

Medical Assistant

Get to Know Our Team
FAQ

Gut Health FAQs

Still have questions?

Talk to our team, Monday to Thursday, 9am–5pm.

Call (212) 644-9100
What does gut health testing involve?

Depending on your symptoms, your physician may recommend blood work, a stool sample, or a breath test. Our team explains preparation, collection, costs, and expected turnaround before you proceed.

How long until I see improvement?

That depends on the cause of your symptoms and the treatment. We agree on a review schedule and track changes in discomfort, bowel habits, and daily function. Results vary.

Does insurance cover gut health testing?

Coverage depends on your plan, the laboratory, and the tests ordered. Specialty panels may require payment out of pocket. We discuss anticipated costs before ordering.

Will I need to change my diet?

Your physician may recommend specific changes based on your symptoms and findings. Any elimination or food-reintroduction plan should be clinically guided and account for your nutritional needs.

Can gut health affect my mood and energy?

The gut and brain are connected, and digestive symptoms can affect wellbeing. Fatigue and mood changes have many possible causes, so we assess them in the context of your overall health.

What if probiotics haven’t helped?

Probiotics are not appropriate for every digestive problem. We review the product, how you used it, and your response before considering a different treatment or further evaluation.

Can a food-sensitivity panel tell me exactly what to avoid?

IgG panels cannot reliably identify foods causing allergy or intolerance. Your symptom history and appropriate clinical assessment are more useful for deciding whether testing or dietary changes are needed.