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St. Luke's Clinic – Bariatrics and General Surgery: Nampa

Obesity is a chronic, progressive, relapsing – but treatable disease. Over the past two decades, the obesity rate in the United States has increased from 30% of individuals to 42%. It's projected that by the year 2030, over 50% of our country's population will be obese. This is an alarming statistic, but one that can be reversed.

Treating obesity requires a comprehensive, individualized approach. Our team believes that one size does not fit all when it comes to treating obesity. The approach your family member, neighbor, or co-worker used may not be what works for you. There are both non-surgical and surgical options available; and our goal is to design a treatment plan specifically for you.

  • Location & Contact Info

    9850 W. St. Luke's Dr.
    Suite 260
    Nampa, ID 83687
    (208) 381-3915
    Fax: (208) 381-3918
    Directions/Map
    Make an Appointment

    Accepting New Patients

    Yes

  • Office Hours

    Mon - Thu: 8 a.m. - 5 p.m.
    Fri: 8 a.m. - 12 p.m.

    Referral Required

    Yes

  • Before Your Visit

  • For Current Patients

  • After-hours & Weekends

    A physician is always available on call. If you have a medical emergency, call 911 immediately or go directly to the nearest emergency department. To reach the on-call physician, please call (208) 381-3915.

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Schedule an Appointment
If you have a medical emergency, do not use online scheduling. Call 911 or proceed to your nearest emergency department. If you require immediate assistance for a non-emergency condition, please contact the clinic directly by phone.

Providers

  • Joshua G. Barton, MD

    General Surgery

    Biography

    Joshua G. Barton, MD is Idaho's only liver and pancreas (HPB) surgery fellowship-trained surgeon. He is also the medical director of St. Luke's Clinic – Center for Pancreatic and Liver Diseases and fellow of the American College of Surgeons. His specialty is the surgical treatment of pancreatic, biliary, liver, and stomach diseases as well as bariatric surgery including laparoscopic Roux-en-Y gastric bypass and laparoscopic sleeve gastrectomy. He also has extensive experience using the daVinci surgical robot. 

    Dr. Barton actively participates in several professional organizations, including the Society for Surgery of the Alimentary Tract, Pancreas Club, and the American Hepato-Biliary Association.

    Dr. Barton is originally from Texas and was raised in the Dallas-Fort Worth metroplex. He received his bachelor's degree from Texas A&M University and his medical degree from the University of Texas – Houston. He completed his general surgery residency at the University of Oklahoma. He obtained additional training in hepato-pancreato-biliary and advanced GI surgery at the Mayo Clinic.

    SURGICAL SPECIALTIES

    • Abdominal tumor resection
    • Bariatric revision
    • Cholecystectomy (gallbladder)
    • Excision of benign and malignant lesions
    • Gastrectomy
    • Gastric bypass
    • Hepatectomy
    • Jejunostomy
    • Laparoscopic surgery
    • Liver resection
    • Liver surgery
    • Lymph node biopsy and dissections
    • Proactive screening for people with family history risk
    • Sarcoma resection
    • Sleeve gastrectomy
    • Whipple (pancreaticoduodenectomy)

    Availability

    Accepting new patients
     
    • St. Luke's Health Partner
      St. Luke's Health Partner

      These providers work together to achieve patient-centered care, using proven best practices to offer better care to you and your family.

      see full profile

    • Specialties, Conditions & Treatments

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  • Maria K. Ewings, MD

    Internal Medicine

    Biography

    Maria Ewings, MD collaborates with patients to develop individualized treatment plans to improve metabolic health and manage weight. She is board certified in obesity medicine, internal medicine, and lifestyle medicine.

    Dr. Ewings completed her medical degree and internal medicine residency at the University of Washington, followed by a year as chief resident at the Boise Veterans Affairs Medical Center. She has extensive experience working in primary care internal medicine, hospital medicine and perioperative medicine. After spending several years as a hospitalist treating complex advanced disease, she was inspired to help patients treat the root causes of chronic disease as part of St. Luke's Obesity and Metabolic program. 

    In her spare time, Dr. Ewings enjoys traveling, reading novels, exercising outside, watching film and TV, cooking and eating with friends and family.

    Availability

    Accepting new patients
     
    • St. Luke's Health Partner
      St. Luke's Health Partner

      These providers work together to achieve patient-centered care, using proven best practices to offer better care to you and your family.

      see full profile

    • Specialties, Conditions & Treatments

      See Less See More
  • Camilla A. Guthrie, NP

    Camilla A. Guthrie, DNP

    Biography

    Camilla Guthrie, DNP cares for patients in St. Luke's Obesity and Metabolic program, which emphasizes non-surgical weight loss methods including nutrition, physical activity, and medication. Camilla enjoys empowering her patients with the tools they need to achieve their goals. She is committed to open and honest communication, and supporting her patients on their unique weight-loss journeys. 

    Prior to working in bariatrics, Camilla worked in urgent care and surgical services. Her personal passion for exercise and nutrition inspired her to join St. Luke's Obesity and Metabolic program and she appreciates the opportunity to pair her personal interests with her professional expertise in helping her patients improve their quality of life.

    Originally from Idaho Falls, Camilla earned her bachelor's degree in nursing and doctorate of nursing practice from Idaho State University. In her free time, she enjoys pickleball, mountain biking, and adventuring outdoors with her husband and their dog.

    Availability

    Accepting new patients
     
    • St. Luke's Health Partner
      St. Luke's Health Partner

      These providers work together to achieve patient-centered care, using proven best practices to offer better care to you and your family.

      see full profile

  • Hazen T. Herzog, PA-C

    Biography

    Hazen T. Herzog, PA-C is a board certified physician assistant experienced in advanced laparoscopic and robotic procedures. He also has extensive experience in general and bariatric surgery. He is especially encouraging to his patients confronting obesity and the courage they show as they face surgery.

    Hazen earned his bachelor's degree in Spanish from the University of Utah and his master of physician assistant studies from the University of Utah School of Medicine. In his free time he enjoys fishing, mountain biking, skiing, and spending time with his family.

    Availability

    Accepting new patients
     
    • St. Luke's Health Partner
      St. Luke's Health Partner

      These providers work together to achieve patient-centered care, using proven best practices to offer better care to you and your family.

      see full profile

  • Troy W. Hunt, NP

    Biography

    Troy Hunt, FNP-C Is a family nurse practitioner with special interests in bariatric surgery and weight loss medication management. He is a caring and compassionate guide for patients throughout their weight loss journey. He is dedicated to exceptional care using evidence-based practices, and he partners with his patients to achieve the best possible health outcomes. 

    Troy earned his bachelor’s degree in nursing from Linfield College, graduating with honors. He received his graduate degree from Georgetown University School of Nursing with a specialization as a family nurse practitioner. He is board certified with the American Association of Nurse Practitioners and licensed in both Idaho and Oregon.

    In his free time, Troy enjoys hiking, fishing, hunting, pottery, and spending time with his family.


    Availability

    Accepting new patients
     
    • St. Luke's Health Partner
      St. Luke's Health Partner

      These providers work together to achieve patient-centered care, using proven best practices to offer better care to you and your family.

      see full profile

  • Jason A. Kemp, MD

    General Surgery

    Biography

    Jason Kemp, MD specializes in advanced laparoscopic and robotic surgery, including a variety of bariatric and general surgical procedures. He completed additional training in advanced laparoscopic surgery with Dr. Thomas R. Huntington at St. Luke’s Boise Medical Center. He also has extensive experience using the daVinci surgical robot. He serves as the medical director of St. Luke's Bariatric and Metabolic Surgery program, as well as St. Luke's Surgical Services in the Treasure Valley.

    Dr. Kemp’s expertise includes bariatric surgeries including Roux-en-Y gastric bypass, sleeve gastrectomy, and revisional bariatric surgery; anti-reflux surgery; paraesophageal and hiatal hernia repair; stomach surgery, including gastric stimulators; gallbladder surgery; and other advanced laparoscopic and robotic surgical procedures.

    Dr. Kemp is a member of the Society of American Gastrointestinal and Endoscopic Surgeons and the American Society of Metabolic and Bariatric Surgeons.

    Availability

    Accepting new patients
     
    • St. Luke's Health Partner
      St. Luke's Health Partner

      These providers work together to achieve patient-centered care, using proven best practices to offer better care to you and your family.

      see full profile

    • Specialties, Conditions & Treatments

      See Less See More

Programs & Treatments

Support Services for Bariatric Patients

Online Classes Now Available

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  • Bariatric Cooking Class Online

    Health Management Classes
    price tag icon
    Free, Registration Required

    Join our dietitians as they create and showcase tantalizing recipes designed to help you maintain a healthy lifestyle.

  • Bariatric Healthy Living Series: Online

    Health Management Classes
    price tag icon
    Free, Registration Required

    The goal of these classes is to equip and encourage you as you strive to lead a healthier life.

Online Support Group Now Available

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  • Bariatric Support Group: Online

    Support Groups

    Open to you at any stage of your bariatric surgery journey, this group will help you connect with others and share your experiences.

Access Your Mobile Medical Record Anytime, Anywhere

Access Your Mobile Medical Record Anytime, Anywhere

Sign up for a MyChart account today!

With MyChart, you’re able to view test results, contact your provider, request medication refills, schedule appointments and more. We encourage you to sign up for easy access to the tools and information you need to proactively manage your health. You can also set up online proxy access requests for medical records of children, spouses, or dependents.


There's also an easy-to-use MyChart app available for your mobile devices!

Learn more about MyChart

Protect Your Health

Your Partner in Health.

People are at the heart of great health care. That's why we are committed to delivering compassionate, high-quality care tailored to the communities we serve. 


Together with our community partners and patients, we're building a stronger, healthier future for all Idahoans.

Connect with Us
Contact Us In McCall (208) 634-2221