• Our Mission:
    Gastroenterology Associates is dedicated to providing high quality, community-driven digestive health care and wellness planning, including diagnosis, evaluation and treatment of digestive disease.
  • Core Values:
    1. Kindness
    2. Knowledge Sharing
    3. Respect
    4. Commitment
    5. Collaboration

Welcome to Our Practice

Gastroenterology Associates welcomes you!

At GA, we provide best practice gastroenterology care to the southern Puget Sound region by focusing on our patient’s experience and continually striving to improve safety, quality, accessibility, efficiency and cost containment. Our Gastroenterology Board Certified physicians specialize in gastroenterology, hepatology and related endoscopy procedures.

Our Board-Certified Advanced Practice Providers – ARNPs, PA-Cs and CRNAs – work closely with our physicians to provide our patients with the compassionate and evidence-based care they deserve. At GA, our core values of knowledge sharing, respect, kindness, commitment and collaboration guide us daily in providing excellent patient care.

COVID-19 (Coronavirus) Information

Your health and safety are our first priority, especially during these uncertain times. COVID-19 is a new disease with updated research data and information being released frequently. Gastroenterology Associates providers continually follow this influx of information including CDC, national GI tri-Societies (ACG, AGA, ASGE) and local and WA State public health department recommendations.

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What we know:

  • There is currently no vaccine to prevent COVID-19.
  • The best way to prevent illness is to avoid being exposed to this virus.
  • The virus is thought to spread mainly from person-to-person.
  • Between people who are in close contact with one another (within about 6 feet).
    • Through respiratory droplets produced when an infected person coughs, sneezes or talks.
    • These droplets can land in the mouths or noses of people who are nearby or possibly be inhaled into the lungs.
    • Some recent studies have suggested that COVID-19 may be spread by people who are not showing symptoms.
  • People of any age with the following conditions are at increased risk of severe illness from COVID-19:
    • Cancer
    • Chronic kidney disease
    • COPD (chronic obstructive pulmonary disease)
    • Immunocompromised state (weakened immune system) from solid organ transplant
    • Obesity (body mass index of ≥ 30)
    • Serious heart conditions, such as heart failure, coronary artery disease, or cardiomyopathies
    • Sickle cell disease
    • Type 2 diabetes mellitus
  • Based on what we know at this time, people with the following conditions might be at an increased risk for severe illness from COVID-19:
    • Asthma (moderate-to-severe)
    • Cerebrovascular disease (affects blood vessels and blood supply to the brain)
    • Cystic fibrosis
    • Hypertension or high blood pressure
    • Immunocompromised state (weakened immune system) from blood or bone marrow transplant, immune deficiencies, HIV, use of corticosteroids, or use of other immune weakening medicines (such as with our Infusion therapy patients)
    • Neurologic conditions, such as dementia
    • Liver disease
    • Pregnancy
    • Pulmonary fibrosis (having damaged or scarred lung tissues)
    • Smoking
    • Thalassemia (a type of blood disorder)
    • Type 1 diabetes mellitus
  • It is especially important for people at increased risk of severe illness from COVID-19, and those who live with them, to protect themselves from getting COVID-19.
  • The best way to protect yourself and to help reduce the spread of COVID-19 is to
    • Limit your interactions with other people as much as possible.
    • Take precautions to prevent getting COVID-19 when you do interact with others:
      • Wash your hands often with soap and water for at least 20 seconds especially after you have been in a public place, or after blowing your nose, coughing, or sneezing.
      • Avoid close contact: Stay at least 6 feet (about 2 arms’ length) from other people.
      • Cover your mouth and nose with a mask when around others.
      • Cover coughs and sneezes.
      • Clean AND disinfect frequently touched surfaces daily.
      • Limit travel to within your local community.
      • Monitor your daily health: Watch for fever, cough, shortness of breath, fatigue, muscle or body aches, headache, new loss of taste or smell, sore throat, congestion or runny nose, nausea or vomiting, diarrhea.
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GA Protecting Your Health:

At Gastroenterology Associates, we are doing everything possible to ensure our patients are protected from COVID-19, including but not limited to:

  • If you have an on-site appointment and are ill with fever, cough, shortness of breath or other COVID-19 symptoms, please call us immediately to reschedule (360-413-8250).
  • We do not diagnose or treat COVID-19 patients on-site.
  • We screen every on-site person for COVID-19 symptoms upon their arrival (Providers, staff, patients, support persons, etc.). This includes a temperature, oxygen saturation and symptom check and a screen for travel outside of the United States within the past 14 days.
    • We do not allow anyone with a positive COVID-19 screen to remain on-site.
  • We practice social distancing whenever possible.
    • We ask patients not to bring non-essential persons with them.
    • We do not allow non-essential “visitors” at this time.
    • We ask essential support persons accompanying patients to wait in the car and/or use multiple lobby areas to facilitate social distancing.
  • We require face masks for all staff and providers and face masks/facial covering (nose and mouth) for every person on-site.
  • We offer telehealth visits as an alternative to on-site visits.
  • We have plexiglass barriers in place at all check-in/check-out desks.
  • We frequently sanitize our lobbies and sanitize each patient space (exam rooms, Endoscopy admit, procedure and recovery rooms) between each use.
    • We have removed reading material from our lobbies.
  • We provide hand sanitizer in multiple locations and encourage their use as well as adhering to strict handwashing/hand hygiene guidelines by our staff and providers.
  • We monitor CDC, national GI tri-Societies (ACG, AGA, ASGE) and local and WA State public health department recommendations and adjust our protocols accordingly.
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Risks of Venturing Out in Public:

  • During this COVID-19 pandemic, you are at increased risk of getting COVID-19 when you leave your home and choose not to self-isolate or choose to spend time with others who do not self-isolate. Some recent studies suggest that COVID-19 may be spread by people who do not have symptoms.
  • We understand weighing the benefits and risks of attending an in-person appointment during this pandemic may be difficult. Each individual comes to us with a unique health history, chronic health conditions, new or chronic symptoms and/or the potential for silent health conditions (such as undiagnosed colon polyps, Barrett’s esophagus or cancer). Some chronic health conditions increase the risk of COVID-19 complications should an individual contract COVID-19.
  • Weighing the risks of COVID-19 complications versus not treating GI health concerns is something that should be reviewed and considered on an individual basis. While choosing to be seen in person for an appointment or procedure which is non-emergent has risks, as the pandemic spans more time, the risks of the untreated health issue may outweigh the risk of the likelihood of COVID-19 complications for particular individuals. We are happy to help our established patients review your particular risks for an in person visit. Please contact us through our Patient Portal or at 360-413-8250 for assistance, if needed. If you are not an established patient at Gastroenterology Associates, please contact your primary care provider (or provider who knows your health history) to review your risks versus benefits.
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Other Resources:

 



Practice News

Gastroenterology Associates has moved! Our brand new two-story 26,000 square foot building, built specifically for GA to expand our office, Infusion Center and Endoscopy Center, is at:

209 Lilly Road NE                                  Olympia, WA 98506

Our new building is located 3 blocks south (toward Martin Way) of our previous location, on the west (hospital) side of the street.  Look for our sign just before the Olympia Eye Clinic.  When pulling into the driveway, go past the three single level buildings to the two story building at the back of the property.  There is a half-circle drive for patient drop-off, if needed.

Our phone and fax numbers are unchanged.


Gastroenterology Associates has not been part of  Washington Gastroenterology since Jan. 1, 2020. Please contact us for medical records requests at 360-413-8250. If you have a billing question or payment for a service date of  1-1-18 through 12-31-19, please contact Washington Gastroenterology Billing Customer Service at 1-800-734-6855. For any service date before 1-1-18 or after 12-31-19, or if you’re not sure who to contact, give us a call at 360-413-8250.  We can help and look forward to hearing from you!

Physicians

  • Harpreet S. Brar, MD

    Dr. Brar began his GI career here in Olympia in 1999. He is well-known around the practice for his continual monitoring of all things newsworthy. This love of staying informed translates into Dr. Brar’s practice of medicine as he utilizes and shares the latest recommendations in evidence-based medicine with his patients, staff and peers.

    Learn More

  • Mark D. Cumings, MD

    Dr. Cumings is a retired United States Army Colonel and was Gastroenterology Services Chief at Madigan Army Medical Center before retiring from military service and joining our practice in 2015. His GI career began in 2002 and has taken him all over the world. Dr. Cumings enjoys spending much of his time off boating, fishing and shrimping on local waters.

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  • Rodney W. Joe, MD

    Dr. Joe’s GI career started here in Olympia in 1997. He recently completed an MS in Healthcare Administration from University of Washington to expand his knowledge in healthcare management. Dr. Joe is well known for his easy-going style, including no neck ties from Memorial Day to Labor Day. He also facilitated a collaboration between GA and Harley-Davidson for a very popular “check your tailpipe” Colon Cancer Awareness month campaign.

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  • Lucas R. Leonard, MD

    Dr. Leonard began his GI practice in Fort Campbell, Kentucky, in 2014 and transferred to Madigan Army Medical Center in 2017, beginning weekend work with GA at the same time. Dr. Leonard retired from military service in December 2019 and we are thrilled to have him onboard at GA full time.

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  • Benjamin F. Merrifield, MD

    Dr. Merrifield began his GI career with GA in Olympia in 2005. Now he provides hospital coverage for GA a portion of each month. He also is a medical device inventor and is typically juggling several entrepreneurial projects at once.

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  • David J. Owens, MD

    Dr. Owens started his GI career in his hometown, Olympia, in 2009 after completing an additional year of GI fellowship to specialize in advanced GI technologies. Since then he has provided specialized advanced procedure services, such as Endoscopic Ultrasound, to our community.

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  • Bruce A. Silverman, MD

    Dr. Silverman completed his medical degree after earning an MS in Human Nutrition from Columbia University. His interest in nutrition has developed into a distinct interest in and avid investigation of the research being done on the human microbiome and he speaks frequently on this topic. Dr. Silverman’s GI career began in Olympia in 1988.

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  • Kathryne A. Wagner, MD

    Dr. Wagner began her GI career in Olympia in 1992 after returning to her PNW home from Syracuse, New York. Dr. Wagner believes in a maintaining a green, healthy and active lifestyle. She can frequently be found enjoying raw vegetables and has successfully completed the Seattle-to-Portland bike ride in one day!

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  • Nicholas K. Weber, MD

    Dr. Weber began his GI career in the south Puget Sound region in 2014, joining GA in 2017. He fits right in to the GA team with his intense focus on providing the highest quality, compassionate care to his patients.

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  • Meimin Xie, MD

    Dr. Xie (pronounced “see ya”) completed her medical degree after earning an MS in Molecular Biology from Iowa State University. She began her GI career here in Olympia in 2007. Dr. Xie is an active bicyclist and reminds us to share the road!

    Learn More

  • Kristine Y. Zhang, MD

    Dr. Zhang left her Midwest roots to start her GI career here in Olympia in 2008. She, along with many of our physicians, balances a busy family life with her calling to be a physician.

    Learn More

Advanced Practice Clinicians

  • Stephanie F. Mitchell, ARNP
    • Board Certified by the American Academy of Nurse Practitioners (AANP)
    • Education: Regis College, Master of Science degree in Nursing (MSN), Family Nurse Practitioner, following a Bachelor of Arts degree in History from the University of Portland
  • Victoria M. Moore, PA-C
    • Board Certified by the National Commission on Certification of Physician Assistants (NCCPA)
    • Education: University of Washington MEDEX Northwest Physician Assistant Program following a Bachelor of Science degree in Clinical Science from San Francisco State University
  • Stephanie A. Romine, ARNP
    • Board Certified by the American Academy of Nurse Practitioners (AANP)
    • Education: Seattle University, Master of Science Degree in Nursing (MSN), Adult-Gerontology Nurse Practitioner
  • Kimberly J. Thomas, ARNP
    • Board Certified by the American Academy of Nurse Practitioners (AANP)
    • Education: University of New Hampshire, Master of Science in Nursing (MSN), Family Nurse Practitioner
  • Janelisa K. Williams, PA-C
    • Board Certified by the National Commission on Certification of Physician Assistants (NCCPA)
    • Education: University of Washington MEDEX NW Physician Assistant Program following a Bachelor of Science degree in Microbiology from the University of Washington

Our Location

Find us on the map

Hours of Operation

Our Regular Schedule

Map and Location

Monday:

7:30 am-5:00 pm

Tuesday:

7:30 am-5:00 pm

Wednesday:

7:30 am-5:00 pm

Thursday:

7:30 am-5:00 pm

Friday:

7:30 am-5:00 pm

Saturday:

Closed

Sunday:

Closed

GA Endoscopy Center

Hours of Operation

Our Regular Schedule

Map and Location

Monday:

6:45 am-5:15 pm

Tuesday:

6:45 am-5:15 pm

Wednesday:

6:45 am-5:15 pm

Thursday:

6:45 am-5:15 pm

Friday:

6:45 am-5:15 pm

Saturday:

Closed

Sunday:

Closed

Providence St. Peter Hospital Endoscopy Center