Meet Our Staff

Medical Providers

Katherine Myerholtz, MSN, FNP-C

Ms. Myerholtz graduated from Malone University with a Bachelor of Science in Nursing. She then continued her education at The University of Toledo, graduating with her Master of Science in Nursing and successfully receiving her certification as a Family Nurse Practitioner. Ms. Myerholtz has been a Certified Family Nurse Practitioner at Family Health Services 2013 providing care to patients of all ages. Additionally she serves as our Associate Medical Director.

Andrea Bertke, MSN, FNP-C

Ms. Bertke graduated from The University of Toledo with a Bachelor of Science in Nursing. She then continued her education at Walden University, where she successfully earned a Master of Science in Nursing and her certification as a Family Nurse Practitioner. Ms. Bertke provides care for patients of all ages, and has now been a Certified Nurse Practitioner at Family Health Services since 2015.

Laura Spasic, MSN, CNP

Laura graduated from The University of Akron with a Bachelor of Science in Nursing. She then went on to successfully receive her Master of Science in Nursing and her certification as an Adult Practitioner from The University of Akron. Laura specializes in adult medicine, and joined Family Health Services in 2017.

Edward Radatz, DO

Dr. Radatz completed his undergraduate degree from Anderson College in Indiana and attended medical school at Ohio University College of Osteopathic Medicine. He has over 30 years of experience practicing medicine, and joins FHS from Firelands Regional Medical Center as an attending emergency medicine physician. Additionally, Dr. Radatz serves as our Medical Director.

Jennifer Richardson, MSN, CNP

Jennifer graduated from Ohio University with her Bachelor of Science in Nursing. She then went on to further her education at University of Cincinnati where she obtained her Family Nurse Practitioner certification and Master of Science in Nursing. Jennifer joins Family Health Services and is able to provide care for patients of all ages.

Allyson Weldon, Ph.D.

Dr. Weldon earned her bachelor’s degree from Ursuline College, her Master’s degree and Doctorate from the University of Houston. She joins our behavioral health team to provide assessment and treatment for children, adolescents and their families. She will offer FHS and our community specialty training in school psychology. Dr. Weldon is now seeing patients.

Tracy Byington, LISW

Tracy Byington, LISW returns to FHS December 2019. She brings over 25 years experience in a variety of community and mental health settings. Tracy graduated from BGSU with her undergrad and received her Masters of Social Work from the Ohio State University. Tracy provides a multi-dimensional approach to meet the needs of the individual. Her training includes Cognitive Behavioral Therapy, Family Informed, Mindfulness and Motivational Interviewing. Tracy is now seeing patients of all ages.

Residency Physicians

We participate as a clinical training site with Firelands Regional Medical Center’s graduate medical education residents.

Eric Mast, DO
Program Director

Paul Bruner, DO
Faculty

Kari Ketvertis, MD
Faculty

Annalyse Quintero, MD attended the University of California at Santa Cruz. For medical school, she chose to attend Indiana School of Medicine. Outside of work, she enjoys staying active. She also loves to cook, especially food from her childhood and other cultures.

Annalyse Quintero, MD
PGY 3

Mark Lanuza, DO, attended the University of Nevada at Last Vegas. He chose AT Still University Kirksville College of Osteopathic Medicine as his medical school. In his free time, Dr. Lanuza enjoys health and fitness as well as technology.

Mark Lanuza, DO
PGY 3

Valerie Nemeth, DO attended Illinois State University. She chose to attend medical school at Marian University College of Osteopathic Medicine in Indianapolis, IN. Dr. Nemeth enjoys cooking – she’s a vegetarian and loves trying new restaurants and experimenting with new foods.

Valerie Nemeth, DO
PGY 3

Cameron Conard, DO attended Otterbein University. He attended medical school at Ohio University Heritage College of Osteopathic Medicine. Outside of work, Dr. Conard most enjoys playing the cello, filmography and underwater chess.

Cameron Conard, DO
PGY 3

Kevin Carnahan, DO, attended Wright State University for his undergraduate degree and Ohio University Heritage College of Osteopathic Medicine for his medical degree. His hobbies include sailing, construction, woodworking, and architecture, and he is very close with his parents, sister, and two nephews.

Kevin Carnahan, DO
PGY 2

Dr. Emily Lanzola attended the College of Wooster where she earned a Bachelor of Arts degree in biology. She attended the Ohio University Heritage College of Osteopathic Medicine in Athens for medical school. She enjoys cooking, baking, spending time with her husband, family and friends, and traveling.

Emily Lanzola, DO
PGY 2

Austen Smith, DO, attended The Ohio State University for his undergraduate degree. For medical school, Ohio University Heritage College of Osteopathic Medicine. In his spare time, he enjoys watching the Columbus Blue Jackets and Buckeye football, and exploring new restaurants.

Austen Smith, DO
PGY 1

Dan Delaney, DO attended Millikin University for his undergraduate degree. For medical school, he attended Alabama College of Osteopathic Medicine. In his spare time, he enjoys playing badminton, playing video games, reading epic fantasy, writing and playing music.

Daniel Delaney, DO
PGY 1

Aaron Martinez, DO, attended Metropolitan State University of Denver for his undergraduate degree. For medical school, he attended Arizona College of Osteopathic Medicine. In his spare time, he enjoys spending time with his wife, kids, two dogs and two cats.

Aaron Martinez, DO
PGY 1

Timothy Cutler, DO, attended the University of Dayton for for his undergraduate degree. For medical school, Dr. Cutler attended OUHCOM- Cleveland. In his spare time, he enjoys playing games with his family, and helping his younger cousins prepare for livestock shows.

Timothy Cutler, DO
PGY 1

Terry Bujnak, DO
Transitional

Justin Leasure, MD earned his undergraduate degree from The Ohio State University. Afterwards, he attended Toledo University College of Medicine, in Toledo, Ohio. In his spare time, he enjoys backpacking, rock climbing and sports.

Justin Leasure, MD
Transitional

Samir Sharrak, DO attended the University of California- San Diego for his undergraduate and Des Moines University for his medical degree. In his spare time, Dr. Samir enjoys playing soccer, hiking and traveling.

Samir Sharrack, DO
Transitional

For more information on FRMC Medical Education Faculty, visit here.

For more information on FRMC Medical Education Residents, visit here.

Medical Staff

Laura H.
PCMH/Chronic Care Coordinator

Lisa J.
LPN

Theresa K.
Medical Assistant

Sheila S.
LPN

Sue W.
LPN

Ciera W.
Medical Assistant

Alexis M.
Medical Assistant

Erika J.
Medical Assistant

Odessa A.
Communication Center Coordinator

Tiffany G.
Medical Assistant/Receptionist

Jaida H.
Medical Assistant/Receptionist

Taylor J.
Medical Receptionist

Kelly C.
Medical Assistant

Heather L.
Medical Assistant

Kathy B.
Call Center

Ashley A.
BH Medical Receptionist

Administrative Staff

Lydia Brennan
Clinical Site Manager
lydiab@familyhs.org

MarLana Binkley
Executive Assistant
marlanab@familyhs.org

Ya’Shica Brown
Outreach & Enrollment
yashicab@familyhs.org

Asia Hammond
Panel Management
asiah@familyhs.org

Colin Shannon
IT Administrator
colins@familyhs.org

Carolyn M.
Medical Coder
carolynm@familyhs.org

Amanda K.
Billing
amandak@familyhs.org

Susan Howey
Jr. Accountant
susanh@familyhs.org

Executive Officers

David P. Tatro, Sr., MBA, FABC – CEO/CFO
davidt@familyhs.org

Mr. Tatro comes to Sandusky, Ohio with 30 years’ experience in healthcare management. A native of Western Massachusetts, Mr. Tatro brings a strong background in organizational leadership, strategic planning and revenue enhancement through community partnerships. A former Chief Operations Officer for the last 10 years at Mary’s Center in Washington, D.C., Mr. Tatro grew the company from $8 million in 2009 to over $65 million in 2018. Mr. Tatro was also the founder and Chief Financial Officer for the Capital Clinical Integrated Network in Washington, D.C. which was comprised of multiple FQHC’s and Managed Care Organizations. Mr. Tatro is a graduate of the University of Massachusetts in Amherst, MA and received his MBA from Rivier College in Nashua, NH. He is a Fellow of the Advisory Board Company in Washington, D.C. Additionally, he is an active member of the Capital Chapter of the Nam Knights and a member of Freemasonry, of which both groups support veterans and philanthropically assist local communities. He and his wife Adele will be relocating to the Sandusky area. They have two adult children, Erika Rose and David Jr.

Edward Radatz, DO – Medical Director

Dr. Radatz completed his undergraduate degree from Anderson College in Indiana and attended medical school at Ohio University College of Osteopathic Medicine. He has over 30 years of experience practicing medicine, and joins FHS from Firelands Regional Medical Center as an attending emergency medicine physician. Additionally, Dr. Radatz serves as FHS’ Medical Director.

Katherine Myerholtz, MSN, FNP-C – Associate Medical Director

Ms. Myerholtz graduated from Malone University with a Bachelor of Science in Nursing. She then continued her education at The University of Toledo, graduating with her Master of Science in Nursing and successfully receiving her certification as a Family Nurse Practitioner. Ms. Myerholtz has been a Certified Family Nurse Practitioner at Family Health Services for 4 years providing care to patients of all ages. Additionally she serves as our Associate Medical Director.