Specialty Doctors & Providers
Welcome to Holton Community Hospital, your local hospital in Jackson County, Kansas. We provide important medical services to everyone in Northeast Kansas. Our hospital offers a full range of health care, with specialty doctors and providers in every area of medicine.
Outpatient Specialist Doctors & Providers
Dr. Aaron Brown
General Surgery
M.D. – University Of Hawaii
Trauma
General Acute Care
Endoscopy
General Surgery
Dr. Samuel Bruna
General Surgery
Graduate of University of Kansas
School of Medicine in Wichita, KS
Hometown: Hanover, Kansas
- Acute Care Surgery
- Trauma Surgery
- Gastrointestinal Endoscopy & Surgery
- Minimally Invasive Laparoscopic Surgery
Dr. Ryan Carr
Orthopedic Surgery
Medical Degree from Chicago Medical School
Surgical residency in the Department of Orthopedic Surgery at University of Illinois.
2014 “Vernon L. Nickel Research Award” Winner from the Orthopedic Research Association.
Dr. Denis Jimenez, FACS
General Surgery
Dr. Patrice Michaletz-Onody (Dr. MO)
Gastroenterology
Education & Background
Dr. Kevin Nasseri
Urology
University of Kansas Medical Center
American Board of Urology
Urology, University of Kansas Medical Center
Dr. Andrew Palmisano
Orthopedics
University of Dayton, Dayton, OH, August 2003-May 2007
Degree: Bachelor of Science Major: Pre-Medicine; Minor: Psychology
University of Toledo College of Medicine, Toledo, OH, July 2007-June 2017
Degree: Doctor of Medicine
University of Michigan Hospitals, Ann Arbor, MI, June 2011- June 2016
Department of Orthopedic Surgery
Cleveland Clinic, Cleveland, OH, August 2016-July 2017
James A. Dickson Adult Reconstructive Surgery Fellowship
Dr. Robert Shemwell
Podiatry
Doctor of Podiatric Medicine
University of Missouri
Chaminade University of Honolulu
Bachelor of Business Administration
Penn Valley College
Hometown: Excelsior Springs
American Osteopathic Board of Internal Medicine
Dr. Chad Walker
Rheumatology
Education Geisinger Medical Center, Rheumatology Fellowship, July 2010 – June 2012
Scranton-Temple Residency Program, Internal Medicine Residency, July 2006 – June 2009
Doctors Hospital, Traditional Osteopathic Internship, July 2005 – June 2006
Philadelphia College of Osteopathic Medicine, DO, 2001 – 2005
University of Scranton, BS in Biology, Magna Cum Laude, 1997 – 2001
Certifications:
American Board of Internal Medicine
Rheumatology Fellow of the American College of Rheumatology
Memberships:
Pennsylvania Medical Society
Lackawanna Medical Society
American Medical Association
Pennsylvania Osteopathic Medical Association
Tiffany Engelken, APRN-C
Dermatology
Certified Dermatology Nurse Practitioner
Master’s of Science in Nursing
Wichita State University
Hometown: Centralia, KS
General dermatology
Skin cancer exams
Disorders of the skin, hair and nails such as acne, warts, rashes, hair loss, psoriasis, and eczema
Megan Freise, APRN
Orthopedics
BSN – Washburn University
MSN – University of Kansas Medical Center
Certified by the American Academy of Nurse Practitioners
Advanced Trauma Life Support
Advance Cardiac Life Support
Pediatric Advanced Life Support
Roger Moss, CRNA
Anesthesia Services, Pain Management
Ashley Reinecke, APRN
Advanced Wound Clinic
MSN- Washburn University
BSN- Washburn University
Basic Life Support Certified
Advanced Cardiac Life Support Certified
Pediatric Life Support
Advanced Trauma Life Support
Katie Tonniges, CRNA
Anesthesia Services, Pain Management
Amy Waller, APRN
Gastroenterology
Specializing on the digestive system and its disorders. Diagnosing, treating, and preventing diseases affecting the esophagus, stomach, intestines, liver, pancreas, gallbladder, and bile ducts.
Hospitalist
Lisa Dinkel, APRN-C
Emergency Room Providers
Dallas Dooley, APRN
Emergency Department
Education:
Masters- Washburn University- Master of Science in Nursing, Family Nurse Practitioner
Bachelors- Washburn University, Bachelor of Science in Nursing
Kansas Nurse Practitioner and Registered Nurse Licenses
Board Certification- American Academy of Nursing Practitioners
Basic Life Support Certified
Advanced Cardiac Life Support Certified
Pediatric Advanced Life Support Certified
Advance Trauma Life Support Certified
DOT Physical- National Registry of Certified Medical Examiners Certified
Michael Hamilton, PA
Emergency Room
Darlene Hirst, PA
Emergency Room
Masters – Wichita State University, Physician Assistant
Masters – The University of Kansas Medical Center, Physical Therapist
BSE – The University of Kansas
Physician Assistant License
Physical Therapist License
Basic Life Support Certified
Advanced Cardiac Life Support Certified
Kansas Academy of Physician Assistant (KAPA)
American Academy of Physician Assistant (AAPA)
Family Medicine & Emergency Room Doctors
Dr. Clint Colberg
Family Medicine, Emergency Room and Inpatient Care
M.D. – University of Kansas School of Medicine
B.S. – University of Kansas, Education
Smoky Hill Family Medicine Residency – Salina, KS
Basic Life Support
Advanced Cardiopulmonary Life Support
Pediatric Advanced Life Support
Neonatal Advanced Life Support
Advanced Life Support for Obstetrics
STABLE: Neonatal Stabilization and Transport
Advanced Trauma Life Support
American Academy of Family Physicians
Kansas Academy of Family Physicians
American Medical Association
Dr. Savanna Cox
Family Medicine, Emergency Room and Inpatient Care
Starting September of 2026
Dr. Marija Lawless
Family Medicine, Emergency Room Care
M.D. – University of Kansas School of Medicine
B.S. – Washburn University, Biology, minor in Poverty Studies
Smoky Hill Family Medicine Residency – Salina, KS
Dr. Malia Warner
Family Medicine, Emergency Room and Inpatient Care
M.D. – The University of Kansas School of Medicine
MS. in Chemistry -The University of Iowa.
B.A. in Chemistry – University of Rochester, NY,
Medical Residency – The Smokey Hill Family Medicine Residency in Salina, Kansas.
Mission
The Mission of Holton Community Hospital is to provide professionalism, compassion, and excellence in healthcare for a healthier community. We strive to meet our mission and are proud to serve our communities.
Our pledge is to provide Personalized Care with Hometown Heart.
