Gastroenterologists in Tulsa, OK
Gastroenterology • Stillwater, OK
Clinic Type
Gastroenterology
Address
Utica Park Clinic – Gastroenterology and Hepatobiliary Surgery (101st E. Ave.) 8803 S. 101st E. Ave., Suite 205 Tulsa, OK 74133
Phone
918-579-4044
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Opening Hours
Mon-Fri 8:00 AM – 5:00 PM
Services Offered
Insurance & Payment
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Languages Spoken
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FAQs
Patients do not need a referral to schedule a colonoscopy.
Call 918-579-4044 to schedule yours today.
Social Media
Photos








What Patients Say
Overall sentiment across review platforms: mixed
- Healthgrades (Dr. Matt Blankenship): 4.9/5 (132 ratings)
- WebMD Care (Dr. Patrick Volak): 5.0/5 (73 ratings)
- WebMD Care (Dr. Christian Clark): 5.0/5 (45 ratings)
- WebMD Care (Dr. Markham Nightengale): 4.5/5 (53 ratings)
- Vitals (Dr. Thomas Swafford): 2.9/5 (28 ratings)
- WebMD Care (Adult Gastroenterology of Stillwater): Not specified (2 reviews)
Patients praise
- Highly professional and knowledgeable medical care
- Compassionate and attentive bedside manner reported for many Tulsa-based specialists
- Effective diagnosis and treatment of complex gastrointestinal conditions
- Clear explanations and patient-centered communication style
- Praise for friendly and efficient office staff at several practices
Common complaints
- Difficulties with office communication and phone responsiveness
- Occasional long wait times for appointments
- Complaints about bedside manner and perceived rudeness, particularly at specific Stillwater practices
- Frustration regarding delayed test results or communication from staff
"Dr Volak has been my gastroenterologist for about 30 years... He is completely present and focused on you alone during all appointments."
— WebMD Care (Dr. Patrick Volak)"Dr. Conkling is very helpful and a good listener. He provided a solution (that is working) for my gastrointestinal problems that previous doctors did not."
— WebMD Care (Dr. Brandon Conkling)"This has been one of the worst experiences I have ever had with a doctors office. We have been waiting for nearly two weeks for test results that should have taken one day."
— Vitals (Dr. Thomas Swafford)Synthesized from public review platforms as of Jul 11, 2026 — sources: [1][2][3][4].
In the News
- Stacy Chronister, D.O. - OSU Medicine — Aug 13, 2025
- Dr. Lauren Bessette, DO - Internal Medicine Physician in Muskogee, OK — Jun 11, 2026
- Elizabeth Quinton-Williams, PA - Physician Assistant in Coweta, OK — May 14, 2026
- Dr. Jason Schroder - Craft Health — Sep 16, 2025
- Dr. Raul D. Lastimosa - Internal Medicine Physician in Syracuse, KS — May 14, 2026
Information sourced from the clinic's website as of July 11, 2026.
More gastroenterology clinics in Stillwater
The Cancer Center at Stillwater Medical Center is a healthcare provider in Stillwater, Oklahoma offering comprehensive cancer care among other services. Key details: - Location: Stillwater, OK (two offices at 1301 W 6th Ave and 1815 W 6th Ave) - Services: cancer care, cardiovascular health, orthopedic/spine and pain management, outpatient and inpatient care, rehabilitation/physical therapy, women’s health, primary and specialty care, surgical services, wellness, and immediate care - Contact: main line 405-742-4930 (also listed multiple numbers) - Focus: cutting-edge cancer care in North Central Oklahoma Note: The page references broader Stillwater Medical Center offerings and lists cancer care under its umbrella, but there is no specific gastroenterology (GI) program detailed on this page. If you’re seeking GI services in Stillwater, you may want to check Stillwater Medical Center’s broader site or contact them directly for GI specialty options and providers.
Karin Ann Hagen, MD – HealthPartners & Park Nicollet Stillwater - Role: Medical doctor affiliated with HealthPartners and Park Nicollet in the Stillwater area. - Context: HealthPartners is a nonprofit health system operating in Minnesota/Wisconsin, with Park Nicollet as a partner. The organization provides insurance plans and clinical care, employing thousands and offering services across multiple regions. - Notable details from the provided highlights: - HealthPartners is headquartered in Bloomington, MN, founded in 1957, with extensive involvement in care delivery and insurance. - Leadership and talent pathways emphasize a large network of hospitals and clinics, including Park Nicollet Health Services (partner in Stillwater). - If you’re seeking specific contact, practice location, or appointment options for Dr. Hagen in Stillwater, please provide a preferred contact method or exact practice site, and I can refine further.
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