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Jonathan Manzer

family and general medicine

Dr. Jonathan Manzer, MD

Dr. Jonathan Manzer grew up in the small town of Kinsley, Kansas with a population of around 2,000 people. He obtained his medical practice degree from the University of Kansas and has been practicing medicine for 25 years. He currently operates the 3 Manzer Family Medicine clinics in the area and truly enjoys the medical field because it allows him to help people every day.

Dr. Manzer is happily married to his wife and together they have a 3 year old daughter. His hobbies include playing racquetball and building off grid solar systems. Dr Manzer looks forward to providing care for you and your family.

Jonathan Manzer

Assistant Physician

Dr. Moataz Barkat

Dr. Moataz Barkat grew up in Alexandria, Egypt. He attended medical school at Alexandria Faculty of Medicine and came to the United States in 2016, eventually finding his way to Manzer Family Medicine in 2021. He currently holds an Assistant Physician license in the state of Missouri and provides family medicine and urgent care to our patients. He speaks English and Arabic fluently and continues to learn Spanish.

Dr. Barkat loves medicine and enjoys getting to know his patients, building good relationships, taking into account their mental health, and helping them in their journey to improve health and well-being. He also enjoys speaking at community events and spreading awareness around prevention about some of the most common medical conditions such as diabetes. In his free time, he enjoys spending time with his wife and daughter, traveling, working out, and cooking Mexican and Egyptian cuisine. Dr. Barkat is currently accepting new patients at our Carthage location. Contact us today for an appointment!

Jonathan Manzer

Doctor of Nursing Practice

Aubri Ashbacher

Aubri Ashbacher is a Family Nurse Practitioner at our Carthage office. She obtained her Doctorate of Nursing Practice from Pittsburg State University and is also a certified Family Nurse Practitioner through the American Academy of Nurse Practitioners.

While Aubri is new to our clinic, she has been working in health care for almost 10 years. She started as a CNA when she was 18 years old prior to becoming an RN and then worked as a nurse in multiple departments including medical charge and ICU.

Aubri enjoys that in the medical field there are so many different paths you can go as a DNP, whether it be a new speciality or working your way up to a leadership position, there is always something different and exciting you can do.

When she is not at the clinics, she enjoys spending time with her boyfriend Levi and their four dogs Thomas, Toby, Barkley, and Briar along with the rest of her family. She also likes photography and attending concerts. Aubri is excited to grow her patient base and take care of you and your family with the highest level of care. Call to make an appointment with Aubri today!

Jonathan Manzer

Family Nurse Practitioner

Natalie Cooper

Natalie Cooper is our Family Nurse Practitioner at our Galena, Kansas clinic. She grew up in Carl Junction, Missouri and obtained her Bachelor's of Nursing from Missouri Southern State University in 2016 and then attended Cox College where she graduated with her Master’s in Nursing in 2021.

Natalie loves to help people and provide the utmost standard of care for her patients and their families. In her free time Natalie enjoys spending time with her husband and son exploring the great outdoors. Make an appointment today with Natalie in Galena!

Jonathan Manzer

Family Nurse Practitioner

Crystal Dyer

Crystal Dyer has been serving others in the healthcare field for over 20 years and has been part of the Manzer Family Medicine team as an Nurse Practitioner for over 5 years. She currently practices in our Carthage and Galena office.

Crystal was born in a small town in Ohio and obtained her FNP, MSN from Maryville University. She enjoys the medical field because it allows her to work hard everyday to make the most positive difference in people’s healthcare.

Crystal is a wife and a mother of 2 children. In her free time she enjoys fishing, swimming, taking walks and being in nature. Crystal would love the opportunity to care for you and your family!

Jonathan Manzer

Family Nurse Practitioner

Kristin Wagner

Kristin Wagner grew up in Riverton, Kansas and completed her undergraduate and graduate degree from Pittsburg State University. She has been a Family Nurse Practitioner with our clinic in Columbus, Kansas for 9 years and strives to provide the best care possible for her patients. Call or text our office to see Kristin Wagner in Columbus, Kansas for your healthcare needs!

Jonathan Manzer

Family Nurse Practitioner

Susan Zhou

Susan Zhou is a Family Nurse Practitioner at our clinic in Carthage. Susan received her Family Nurse Practitioner certificate from Clarkson College in Omaha, Nebraska and her Master’s of Science in Nursing from Indiana University of Pennsylvania.

Susan has worked in many different areas of medicine in the hospital and considers herself a very detail oriented person. She has been married to her long time husband and they have two wonderful grown children. She enjoys spending time with her family, reading, watching movies, and traveling.

Susan has had experience watching alongside a loved one who has had a decade of ongoing medical struggles and feels that it has given her more understanding and sympathy as a provider to better care for her patients. She loves getting to know people and being able to help them. Seeing patients get the help they need is very rewarding to her. Susan would love the opportunity to help you with your healthcare needs.


We provide care for your whole family!

Our Administration

Susan Lewis

Business Manager

Rachel Harper

Operations Manager

Rachel LeMasters

Office Manager

Being physician owned means that our medical providers can focus on you!


Although we do offer same-day appointments, we encourage making appointments as far in advance as possible. Our friendly staff will be happy to answer any questions you have regarding scheduling and payment arrangements.

We guarantee all medical records are completely confidential. If you’d like more information or want to schedule a visit, please contact us.

We treat each patient like family. Our compassionate, professional staff is dedicated to providing the highest level of care possible. Because we are physician-owned, we are patient driven. This means that we can focus more on providing excellent care, and less on the bottom line.

MANZER family medicine

Let our family take care of yours

A comprehensive, multi-specialty practice with locations in Missouri and Kansas.