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Our Gastrointestinal Team

Our team of specialists is dedicated to resolving digestive health issues and eliminating the bothersome symptoms that affect your life. We understand the personal nature of digestive health issues, care for you with sensitivity and respect and create a treatment plan tailored to your unique needs.

Digestive health experts

You have access to doctors with advanced training in different specialties, including board-certified gastroenterologists (GI doctors). The team is experienced in managing complex digestive health issues and skilled inthe latest treatment options for digestive disorders and liver disease.

Our dedicated nurses and professionals work closely with your doctor to personalize your care in an environment that is safe, supportive and comfortable. We apply our training and skill to care for your unique health issues and help you feel like yourself again.

Dennis J Ahnen, MD

Specialties: Gastroenterology
Primary Location:
Gastroenterology of the Rockies
382 S Arthur Ave
Louisville, CO 80027-3094
Phone: (303)604-5000
Fax: (720)890-0364
Accepting New Patients Yes

Michael M Asay, PA

Specialties: Gastroenterology
Primary Location:
Billings Gastrointestinal Associates
1144 N Broadway Ste C
Billings, MT 59101
Phone: (406)238-6380
Fax: (406)238-6399
Accepting New Patients Yes
MyChart Provider Yes

Stephen E Baum, MD

Specialties: Gastroenterology
Primary Location:
Billings Gastrointestinal Associates
1144 N Broadway Ste C
Billings, MT 59101
Phone: (406)238-6380
Fax: (406)238-6399
Accepting New Patients Yes
MyChart Provider Yes

Korina R Bersentes, MD

Specialties: Gastroenterology
Primary Location:
Gastroenterology of the Rockies
382 S Arthur Ave
Louisville, CO 80027-3094
Phone: (303)604-5000
Fax: (720)890-0364
Accepting New Patients Yes

Mandeep S Bhamra, MD

Specialties: Gastroenterology
Primary Location:
Gastroenterology of the Rockies
382 S Arthur Ave
Louisville, CO 80027-3094
Phone: (303)604-5000
Fax: (720)890-0364
Accepting New Patients Yes

Erica C Boettcher, MD

Specialties: Gastroenterology
Primary Location:
Kaiser Permanente Lone Tree
10240 Park Meadows Dr
Lone Tree, CO 80124-5425
Phone: (303)386-1365
Fax: (303)861-5818
Accepting New Patients Yes

Elizabeth A Brakebush, PA

Specialties: Gastroenterology
Primary Location:
Billings Gastrointestinal Associates
1144 N Broadway Ste C
Billings, MT 59101
Phone: (406)238-6380
Fax: (406)238-6399
Accepting New Patients Yes
MyChart Provider Yes

Jennifer W Brenner, MD

Specialties: Gastroenterology
Primary Location:
Colorado Gastroenterology
1960 N Ogden St # 220
Denver, CO 80218-3668
Phone: (303)861-0808
Fax: (303)861-2193
Accepting New Patients Yes

Joy C Bright Agindotan, NP

Specialties: Gastroenterology
Primary Location:
Billings Gastrointestinal Associates
1144 N Broadway Ste C
Billings, MT 59101
Phone: (406)238-6380
Fax: (406)238-6399
Accepting New Patients Yes
MyChart Provider Yes

Joseph E Cassara, MD

Specialties: Gastroenterology
Primary Location:
Kaiser Permanente Rock Creek
280 Exempla Cir
Lafayette, CO 80026-3370
Phone: (303)861-3655
Fax: (720)536-7005
Accepting New Patients Yes

Steven T Chetham, MD

Specialties: Gastroenterology
Primary Location:
Gastroenterology of the Rockies
13952 Denver West Pkwy Bld 53 Ste 100
Lakewood, CO 80401
Phone: (303)604-5000
Fax: (720)890-0364
Accepting New Patients Yes

Daniel D Cornett, MD

Specialties: Gastroenterology
Primary Location:
Gastroenterology of the Rockies
13952 Denver West Pkwy Bld 53 Ste 100
Lakewood, CO 80401
Phone: (303)604-5000
Fax: (720)890-0364
Accepting New Patients Yes

Florian M Cortese, MD

Specialties: Gastroenterology, Internal Medicine
Primary Location:
Mercury Street Medical
300 W Mercury St
Butte, MT 59701-1652
Phone: (406)723-1300
Fax: (406)723-1310
Accepting New Patients Yes

Eugene M Crafton, MD

Specialties: Gastroenterology
Primary Location:
Grand Junction Gastroenterology
1035 Wellington Ave
Grand Junction, CO 81501-8104
Phone: (970)242-6600
Fax: (970)241-8443
Accepting New Patients Yes

Thomas V Davis, DO

Specialties: Gastroenterology
Primary Location:
St. James Healthcare
400 S Clark St
Butte, MT 59701
Phone: (406)723-2500
Fax: ( ) -
Accepting New Patients Yes

Robert P Dolan, MD

Specialties: Gastroenterology
Primary Location:
Gastroenterology of the Rockies
13952 Denver West Pkwy Bld 53 Ste 100
Lakewood, CO 80401
Phone: (303)604-5000
Fax: (720)890-0364
Accepting New Patients Yes

Michael G Firth, MD

Specialties: Gastroenterology
Primary Location:
Rocky Mountain Gastroenterology
8550 W 38th Ave # 300
Wheat Ridge, CO 80033-6052
Phone: (303)463-3900
Fax: (303)463-3999
Accepting New Patients Yes

Jeffrey W Frank, MD

Specialties: Gastroenterology
Primary Location:
Colorado Gastroenterology
1960 N Ogden St # 220
Denver, CO 80218-3668
Phone: (303)861-0808
Fax: (303)861-2193
Accepting New Patients Yes

David Gatof, MD

Specialties: Gastroenterology
Primary Location:
Gastroenterology of the Rockies
382 S Arthur Ave
Louisville, CO 80027-3094
Phone: (303)604-5000
Fax: (720)890-0364
Accepting New Patients Yes

John S Goff, MD

Specialties: Gastroenterology
Primary Location:
Rocky Mountain Gastroenterology
8550 W 38th Ave # 300
Wheat Ridge, CO 80033-6052
Phone: (303)463-3900
Fax: (303)463-3999
Accepting New Patients Yes

Matthew W Karowe, MD

Specialties: Gastroenterology
Primary Location:
Gastroenterology of the Rockies
1755 48th St #100
Boulder, CO 80301
Phone: (303)604-5000
Fax: (720)890-0364
Accepting New Patients Yes

Wesley B Kasen, MD

Specialties: Gastroenterology
Primary Location:
Kaiser Permanente Rock Creek
280 Exempla Cir
Lafayette, CO 80026-3370
Phone: (303)861-3655
Fax: (720)536-7005
Accepting New Patients Yes

Peter S Kaye, MD

Specialties: Gastroenterology
Primary Location:
Gastroenterology of the Rockies
382 S Arthur Ave
Louisville, CO 80027-3094
Phone: (303)604-5000
Fax: (720)890-0364
Accepting New Patients Yes

Daus Mahnke, MD

Specialties: Gastroenterology
Primary Location:
Gastroenterology of the Rockies
13952 Denver West Pkwy Bld 53 Ste 100
Lakewood, CO 80401
Phone: (303)604-5000
Fax: (720)890-0364
Accepting New Patients Yes

John A Mengshol, MD

Specialties: Gastroenterology
Primary Location:
Gastroenterology of the Rockies
382 S Arthur Ave
Louisville, CO 80027-3094
Phone: (303)604-5000
Fax: (720)890-0364
Accepting New Patients Yes

Joel R Montbriand, MD

Specialties: Gastroenterology
Primary Location:
Gastroenterology of the Rockies
382 S Arthur Ave
Louisville, CO 80027-3094
Phone: (303)604-5000
Fax: (720)890-0364
Accepting New Patients Yes

Louis A Morris, MD

Specialties: Gastroenterology
Primary Location:
Kaiser Permanente Lone Tree
10240 Park Meadows Dr
Lone Tree, CO 80124-5425
Phone: (303)386-1365
Fax: (303)861-5818
Accepting New Patients Yes

Richard H Moseley, MD

Specialties: Gastroenterology
Primary Location:
Gastroenterology of the Rockies
382 S Arthur Ave
Louisville, CO 80027-3094
Phone: (303)604-5000
Fax: (720)890-0364
Accepting New Patients Yes

John J Napierkowski, MD

Specialties: Gastroenterology
Primary Location:
Kaiser Permanente Rock Creek
280 Exempla Cir
Lafayette, CO 80026-3370
Phone: (303)861-3655
Fax: (720)536-7005
Accepting New Patients Yes

David M Nolan, MD

Specialties: Gastroenterology
Primary Location:
Kaiser Permanente Lone Tree
10240 Park Meadows Dr
Lone Tree, CO 80124-5425
Phone: (303)386-1365
Fax: (303)861-5818
Accepting New Patients Yes

Tamas Otrok, MD

Specialties: Gastroenterology
Primary Location:
Gastroenterology of the Rockies
382 S Arthur Ave
Louisville, CO 80027-3094
Phone: (303)604-5000
Fax: (720)890-0364
Accepting New Patients Yes

Reena S Patel, MD

Specialties: Gastroenterology
Primary Location:
Gastroenterology of the Rockies
382 S Arthur Ave
Louisville, CO 80027-3094
Phone: (303)604-5000
Fax: (720)890-0364
Accepting New Patients Yes

Maritza Proano, MD

Specialties: Gastroenterology
Primary Location:
New West Physicians
1536 Cole Blvd Bldg 4 Ste 250
Lakewood, CO 80401
Phone: (303)716-8027
Fax: (303)238-5258
Accepting New Patients Yes

Brent J Prosser, MD

Specialties: Gastroenterology
Primary Location:
Grand Junction Gastroenterology
1035 Wellington Ave
Grand Junction, CO 81501-8104
Phone: (970)242-6600
Fax: (970)241-8443
Accepting New Patients Yes

James H Pulju, MD

Specialties: Gastroenterology
Primary Location:
Rocky Mountain Gastroenterology
8550 W 38th Ave # 300
Wheat Ridge, CO 80033-6052
Phone: (303)463-3900
Fax: (303)463-3999
Accepting New Patients Yes

Matthew R Quallick, MD

Specialties: Gastroenterology
Primary Location:
Kaiser Permanente Franklin
2045 Franklin St
Denver, CO 80205
Phone: (303)861-3655
Fax: (303)861-3225
Accepting New Patients Yes

Ramu P Raju, MD

Specialties: Gastroenterology
Primary Location:
Gastroenterology of the Rockies
382 S Arthur Ave
Louisville, CO 80027-3094
Phone: (303)604-5000
Fax: (720)890-0364
Accepting New Patients Yes

Carrie A Reynolds, MD

Specialties: Gastroenterology
Primary Location:
Rocky Mountain Pediatric Gastroenterology
9224 Teddy Ln # 200
Lone Tree, CO 80124-6799
Phone: (303)790-1515
Fax: (303)790-1989
Accepting New Patients Yes

John F Riopelle, DO

Specialties: Gastroenterology
Primary Location:
Kaiser Permanente Lone Tree
10240 Park Meadows Dr
Lone Tree, CO 80124-5425
Phone: (303)386-1365
Fax: (303)861-5818
Accepting New Patients Yes

Kevin M Rufner, MD

Specialties: Gastroenterology
Primary Location:
Colorado Gastroenterology
1960 N Ogden St # 220
Denver, CO 80218-3668
Phone: (303)861-0808
Fax: (303)861-2193
Accepting New Patients Yes

Andrew L Samuelson, MD

Specialties: Gastroenterology
Primary Location:
Kaiser Permanente Rock Creek
280 Exempla Cir
Lafayette, CO 80026-3370
Phone: (303)861-3655
Fax: (720)536-7005
Accepting New Patients Yes

Steven D Seagren, MD

Specialties: Gastroenterology
Primary Location:
Grand Junction Gastroenterology
1035 Wellington Ave
Grand Junction, CO 81501-8104
Phone: (970)242-6600
Fax: (970)241-8443
Accepting New Patients Yes

William W Shields, DO

Specialties: Gastroenterology
Primary Location:
Grand Junction Gastroenterology
1035 Wellington Ave
Grand Junction, CO 81501-8104
Phone: (970)242-6600
Fax: (970)241-8443
Accepting New Patients Yes

Kevin S Sieja, MD

Specialties: Gastroenterology
Primary Location:
Colorado Gastroenterology
1960 N Ogden St # 220
Denver, CO 80218-3668
Phone: (303)861-0808
Fax: (303)861-2193
Accepting New Patients Yes

Leslie S Stark, MD

Specialties: Gastroenterology
Primary Location:
Kaiser Permanente Franklin
2045 Franklin St
Denver, CO 80205
Phone: (303)861-3655
Fax: (303)861-3225
Accepting New Patients Yes

Nathan J Susnow, MD

Specialties: Gastroenterology
Primary Location:
Gastroenterology of the Rockies
382 S Arthur Ave
Louisville, CO 80027-3094
Phone: (303)604-5000
Fax: (720)890-0364
Accepting New Patients Yes

Caroline R Tadros, MD

Specialties: Gastroenterology
Primary Location:
Gastroenterology of the Rockies
13952 Denver West Pkwy Bld 53 Ste 100
Lakewood, CO 80401
Phone: (303)604-5000
Fax: (720)890-0364
Accepting New Patients Yes

Nina Tomaszewski, MD

Specialties: Gastroenterology
Primary Location:
Billings Gastrointestinal Associates
1144 N Broadway Ste C
Billings, MT 59101
Phone: (406)238-6380
Fax: (406)238-6399
Accepting New Patients Yes

Thomas E Trouillot, MD

Specialties: Gastroenterology
Primary Location:
Colorado Gastroenterology
1960 N Ogden St # 220
Denver, CO 80218-3668
Phone: (303)861-0808
Fax: (303)861-2193
Accepting New Patients Yes

Emily K Ward, MD

Specialties: Gastroenterology
Primary Location:
Gastroenterology of the Rockies
13952 Denver West Pkwy Bld 53 Ste 100
Lakewood, CO 80401
Phone: (303)604-5000
Fax: (720)890-0364
Accepting New Patients Yes

Christopher D Williams, MD

Specialties: Gastroenterology
Primary Location:
Billings Gastrointestinal Associates
1144 N Broadway Ste C
Billings, MT 59101
Phone: (406)238-6380
Fax: (406)238-6399
Accepting New Patients Yes
MyChart Provider Yes

George R Winters, MD

Specialties: Gastroenterology
Primary Location:
Grand Junction Gastroenterology
1035 Wellington Ave
Grand Junction, CO 81501-8104
Phone: (970)242-6600
Fax: (970)241-8443
Accepting New Patients Yes

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