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15 Best Gastroenterologists in Denver

The right gastroenterologist in Denver depends on what needs attention now: unexplained digestive symptoms, a screening colonoscopy, an endoscopic evaluation or ongoing care for a condition such as ulcerative colitis.

Compare practices by the procedures and conditions they address, how clearly they explain preparation and follow-up, and whether appointment timing suits your needs. A focused match can make the referral and next steps easier to manage.

How this guide is ordered

This list of gastroenterologists in Denver comes from checking each business's expertise, its customer ratings and its contact information.

Certain businesses pay to appear in more visible positions.

Top 3Full listMapHow to choose

Compare 15 local options

KLocal option
#1
What stands out
  • Detailed, reassuring digestive care

Kevin Rufner, M.D.

4.9192 reviews
4500 E 9th Ave Ste 720S, Denver, CO 80220, United States
Best for
Complex digestive conditionsPatients needing careful explanations

Kevin Rufner, M.D. is a Denver gastroenterologist known for detailed explanations, careful listening, and a calm approach to difficult digestive conditions. Appointments give patients room to describe symptoms and understand the reasoning behind testing or treatment, with staff helping make procedures feel more manageable.

His clinical focus includes complex gastrointestinal and liver-related concerns, including inflammatory bowel disease and autoimmune liver conditions. The practice also places attention on family history and preventive evaluation, making a thorough first consultation especially valuable when symptoms are persistent or the diagnosis is not straightforward.

Rocky Mountain Gastroenterology Lakewood, Denver#2
What stands out
  • Broad digestive-care network

  • Specialized endoscopy support

Rocky Mountain Gastroenterology Lakewood

4.61,504 reviews
355 Union Blvd #200, Lakewood, CO 80228, United States
Best for
Patients needing gastroenterology evaluationRoutine screening and procedures

Rocky Mountain Gastroenterology Lakewood is part of a broad digestive-care practice serving the Denver area. Gastroenterologists treat conditions affecting the esophagus, stomach, intestines, liver, and pancreas, with services spanning routine evaluation, preventive care, diagnostic procedures, and specialized treatment.

The Lakewood location is supported by a larger clinical network that includes multiple clinics, endoscopy centers, and a pathology laboratory. New patients can expect a structured consultation focused on symptoms, next steps, and available options, while the practice’s organized care model helps support longer-term follow-up when digestive issues require continued attention.

Jonathan Fishman, M.D., Denver#3
What stands out
  • Clear procedure explanations

  • Welcoming, inclusive care

Jonathan Fishman, M.D.

4.9187 reviews
4500 E 9th Ave Ste 720S, Denver, CO 80220, United States
Best for
Patients preparing for GI procedures

Jonathan Fishman, M.D. provides gastroenterology care in Denver with an emphasis on clear explanations, thoughtful preparation, and attentive follow-up. He takes time to discuss procedures in understandable terms, while the surrounding clinical team helps patients feel informed before and after treatment.

The practice is also recognized for a considerate, welcoming environment, including gender-neutral facilities and an explicitly LGBTQ+ friendly approach. Patients seeking a gastroenterologist for evaluation or a planned procedure may find the detailed communication especially helpful, though appointments should be arranged ahead of time.

Kevin Sieja MD, Denver#4
What stands out
  • Clear colonoscopy preparation

Kevin Sieja MD

4.8240 reviews
4500 E 9th Ave Ste 720S, Denver, CO 80220, United States
Best for
Patients preparing for screening colonoscopyPeople wanting organized procedure care

Kevin Sieja, MD is a Denver gastroenterologist whose care stands out for clear preparation guidance and an orderly procedure experience. Patients receive detailed instructions well before a colonoscopy, along with reminders that help make each step easier to follow.

The clinical team is described as friendly, professional, and attentive, with a clean facility and careful follow-up after procedures. This makes the practice particularly relevant for people preparing for colonoscopy screening who want practical instructions and a well-coordinated process.

Daniel Siegel, M.D., Denver#5
What stands out
  • Methodical, attentive consultations

Daniel Siegel, M.D.

4.8221 reviews
4500 E 9th Ave Ste 720S, Denver, CO 80220, United States

Daniel Siegel, M.D. is a Denver gastroenterologist who takes a methodical, patient-centered approach to digestive concerns. Consultations focus on listening carefully, explaining the purpose of testing, and considering how symptoms and treatment may affect everyday quality of life.

His office is also associated with warm, courteous staff and efficient coordination around procedures. Patients seeking help for ongoing symptoms or a clearer diagnostic plan may appreciate the time devoted to questions and next steps. Scheduling may require advance planning.

Gastroenterology of the Rockies - Denver#6
What stands out
  • Wide range of GI diagnostics

Gastroenterology of the Rockies - Denver

4.6634 reviews
1830 Franklin St Ste 220, Denver, CO 80218, United States
Best for
Patients with ongoing digestive symptomsWomen seeking female-focused GI care

Gastroenterology of the Rockies provides digestive-care services for patients across Denver and surrounding communities. The practice evaluates a wide range of conditions, including reflux, inflammatory bowel disease, liver disease, and ulcers, using diagnostic tools such as colonoscopy, upper endoscopy, and capsule endoscopy when appropriate.

Care is presented as individualized, with attention to symptom relief, long-term management, and the patient’s questions. The group also has a female-focused gastroenterology service for women seeking care from specialists who understand the particular concerns that can shape digestive health.

Stephen New, M.D., Denver#7
What stands out
  • Personal, efficient GI care

Stephen New, M.D.

4.9144 reviews
4500 E 9th Ave Ste 720S, Denver, CO 80220, United States
Best for
Patients managing ulcerative colitis

Stephen New, M.D. is a Denver gastroenterologist whose care combines clinical thoroughness with a notably personal bedside manner. He asks about the person behind the symptoms, listens carefully, and explains treatment options in a way that supports informed decisions for conditions such as ulcerative colitis.

The office is also associated with efficient coordination, timely appointments, and helpful staff during diagnostic procedures. Patients who have struggled to obtain answers or a prompt specialist appointment may find the practice especially relevant, although appointments are required or recommended depending on the service.

TLocal option
#8
What stands out
  • Long-term inflammatory bowel care

Trouillot Thomas E MD

4.8206 reviews
4500 E 9th Ave Ste 720S, Denver, CO 80220, United States
Best for
Patients managing ulcerative colitisPeople seeking approachable GI care

Trouillot Thomas E MD is a Denver gastroenterology practice centered on careful evaluation and a warm, approachable manner. Dr. Trouillot is associated with long-term care for ulcerative colitis, thorough consultations, and straightforward conversations about symptoms and possible next steps.

Procedure care is organized and designed to feel as calm as possible, with staff answering questions and helping patients understand what to expect. Advance scheduling is sensible for people seeking ongoing GI management or an endoscopy appointment.

Denver Digestive Health Specialists#9
What stands out
  • Thoughtful diagnostic coordination

  • Clear explanations of testing

Denver Digestive Health Specialists

4.6468 reviews
4500 E 9th Ave Ste 720S, Denver, CO 80220, United States
Best for
Patients with unresolved GI symptomsPeople seeking a structured evaluation

Denver Digestive Health Specialists brings together gastroenterology care in Denver for patients seeking evaluation, diagnosis, and treatment planning. The clinical team is associated with attentive listening, detailed explanations, and a calm intake process that helps clarify what testing may be appropriate.

Care coordination can be valuable for people who have been trying to address persistent GI concerns or need a structured path toward further evaluation. The practice may be busy, so planning ahead is useful when arranging an initial consultation or follow-up.

Jennifer W. Brenner, M.D., Denver#10
What stands out
  • Detailed procedure preparation

Jennifer W. Brenner, M.D.

4.7187 reviews
4500 E 9th Ave Ste 720S, Denver, CO 80220, United States
Best for
Patients needing careful GI evaluation

Jennifer W. Brenner, M.D. is a Denver gastroenterologist associated with detailed preparation, attentive consultations, and clear treatment planning. She takes time to understand symptoms, explain procedures, and work through a practical plan rather than rushing the visit.

Her office also provides structured instructions and reminders before endoscopy and colonoscopy, helping patients understand what will happen before, during, and after the procedure. Advance planning is recommended for those seeking an appointment.

JLocal option
#11
What stands out
  • Specialized Barrett’s esophagus care

Jennifer L. Moss, MD

4.996 reviews
4500 E 9th Ave, Denver, CO 80220, United States
Best for
Patients needing thorough GI evaluation

Jennifer L. Moss, MD provides gastroenterology care in Denver with an emphasis on thorough listening, clear information, and respectful consultation. She gives patients time to describe how symptoms affect daily life, then explains findings and next steps without rushing the conversation.

Her clinical work includes general gastroenterology and specialized treatment for Barrett’s esophagus through the BarrX procedure. The surrounding team is associated with organized preparation and compassionate support before and after procedures, making this a relevant option for patients seeking both careful evaluation and advanced digestive care.

Laura Wolfe, M.D., Denver#12
What stands out
  • Careful, unhurried symptom evaluation

Laura Wolfe, M.D.

4.893 reviews
4500 E 9th Ave Ste 720S, Denver, CO 80220, United States
Best for
Patients with complex digestive symptomsLGBTQ+ patients seeking inclusive care

Laura Wolfe, M.D. is a Denver gastroenterologist whose approach centers on careful listening, direct communication, and a thorough review of symptoms. Consultations allow patients to explain their concerns in detail while Dr. Wolfe works to clarify the picture and avoid unnecessary treatment.

Her practice also has an explicitly LGBTQ+ friendly environment, including gender-neutral facilities. Patients seeking a thoughtful evaluation for persistent or difficult-to-describe digestive symptoms may value the time given to understanding the full context. Appointments are required or recommended.

ULocal option
#13
What stands out
  • Multidisciplinary digestive care

UCHealth Digestive Health Center - Anschutz Outpatient Pavilion

4.5306 reviews
1635 Aurora Ct 5th floor, Aurora, CO 80045, United States
Best for
Patients with complex GI concerns

UCHealth Digestive Health Center at the Anschutz Outpatient Pavilion provides gastroenterology care in Denver through a multidisciplinary clinical setting. The team is associated with compassionate consultations, careful questioning, and clear direction for patients who have spent significant time seeking answers.

Doctors, nurses, dietitians, and advanced practice providers contribute to a coordinated care experience, including endoscopy services. The center may be especially useful for patients with complex digestive concerns who need several forms of support, though appointments can require advance planning.

GLocal option
#14
What stands out
  • Advanced endoscopy experience

Gareth Weiner, MD

4.9162 reviews
4500 E 9th Ave #560, Denver, CO 80220, United States

Gareth Weiner, MD is an internist and gastroenterology specialist serving Denver patients through Rocky Mountain Gastroenterology. His care includes digestive-condition evaluation and endoscopic procedures, supported by extensive training in advanced therapeutic endoscopy and a leadership role within the organization.

Procedure visits are associated with efficient preparation, clear updates, and prompt communication of immediate results. Dr. Weiner’s clinical style is generally focused and considerate, with nursing staff helping patients understand each stage of care. This can suit people seeking an organized endoscopy experience within an established digestive-care practice.

Lawrence Miller, M.D., Denver#15
What stands out
  • Patient-focused digestive consultations

  • Supportive procedure guidance

Lawrence Miller, M.D.

4.797 reviews
4500 E 9th Ave Ste 720S, Denver, CO 80220, United States
Best for
Patients seeking careful GI evaluation

Lawrence Miller, M.D. is a Denver gastroenterologist whose consultations emphasize listening carefully, explaining conditions, and addressing questions with patience. His care can include helping patients work through difficult digestive symptoms while considering both physical concerns and their effect on daily life.

The clinical team is also associated with informative support during colonoscopy and endoscopy preparation and recovery. Patients who value a calm, respectful conversation about testing and treatment may find this approach relevant. Appointments are required or recommended.

The comparison at a glance

#BusinessRatingReviewsBest for
#1Kevin Rufner, M.D. 4.9192Complex digestive conditions
#2Rocky Mountain Gastroenterology Lakewood 4.61,504Patients needing gastroenterology evaluation
#3Jonathan Fishman, M.D. 4.9187Patients preparing for GI procedures
#4Kevin Sieja MD 4.8240Patients preparing for screening colonoscopy
#5Daniel Siegel, M.D. 4.8221—
#6Gastroenterology of the Rockies - Denver 4.6634Patients with ongoing digestive symptoms
#7Stephen New, M.D. 4.9144Patients managing ulcerative colitis
#8Trouillot Thomas E MD 4.8206Patients managing ulcerative colitis
#9Denver Digestive Health Specialists 4.6468Patients with unresolved GI symptoms
#10Jennifer W. Brenner, M.D. 4.7187Patients needing careful GI evaluation
#11Jennifer L. Moss, MD 4.996Patients needing thorough GI evaluation
#12Laura Wolfe, M.D. 4.893Patients with complex digestive symptoms
#13UCHealth Digestive Health Center - Anschutz Outpatient Pavilion 4.5306Patients with complex GI concerns
#14Gareth Weiner, MD 4.9162—
#15Lawrence Miller, M.D. 4.797Patients seeking careful GI evaluation

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Map of gastroenterologists in Denver

There is no single verified neighborhood concentration to rely on here, so the map is most useful for comparing practices across Denver and nearby service areas. Look for the clinic that fits both your referral and travel needs. For procedures or repeated visits, calculate the journey at the time you would actually attend. Confirm parking or arrival instructions directly with the office only when they affect your ability to reach the appointment comfortably.

Services to compare

  • Digestive condition evaluationDiscuss persistent or complex digestive symptoms and identify the examinations or follow-up that may be appropriate.
  • Screening colonoscopyArrange routine colorectal screening and clarify preparation, arrival requirements and post-procedure communication.
  • Endoscopic evaluationFind care for patients who need an endoscopy or another direct examination of the gastrointestinal tract.
  • Ulcerative colitis managementSeek continuing gastroenterology support for monitoring symptoms, treatment response and changes over time.
  • Procedure preparationGet a clearer plan for what to do before a GI procedure, including medication and preparation questions.
  • Female-focused GI careExplore gastroenterology care for women who prefer a consultation shaped around their specific concerns and needs.

How to choose gastroenterologists in Denver

  1. Match the referral reasonTell the office whether you need screening, symptom evaluation, endoscopy or condition management, then ask which clinician handles that need regularly.
  2. Ask about preparation instructionsBefore booking a procedure, confirm when instructions arrive, who answers questions and what medication or diet issues need discussion.
  3. Check the follow-up planAsk when results are reviewed, how they are communicated and whom to contact if symptoms change after the visit.
  4. Consider continuity of careIf you have an ongoing condition, find out whether the same clinician can provide future reviews or whether care is shared across a group.
  5. Explain your communication needsMention if you need extra time for questions and judge whether the consultation process gives you a clear understanding of the next step.

Frequently asked questions

Do I need a referral to see a gastroenterologist in Denver?

Referral requirements depend on your insurance and the practice. Ask both your health plan and the clinic whether a referral or prior authorization is needed before scheduling.

How far ahead should I arrange a colonoscopy?

Timing varies with the clinic, the reason for the procedure and your preparation needs. Ask about the earliest appointment, instruction delivery and whether a separate consultation is required first.

What happens at a first gastroenterology visit?

The clinician will usually review your symptoms, medical history, medications and previous testing. They may recommend further evaluation, treatment changes or a procedure, depending on what your consultation reveals.

Can one practice manage ulcerative colitis over time?

Many gastroenterology practices provide ongoing management, but the exact follow-up structure differs. Ask how often reviews occur, who handles urgent questions and how treatment changes are monitored.

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