420 W 4th St.
Mishawaka, IN 46544

Toll Free: (888) 580-1060
After Hours: (888) 580-1060
Local Phone: (574) 307-7673
Fax: (574) 307-7692

Hours of Operation:
Monday: 8:00 a.m. – 8:00 p.m.
Tuesday: 8:00 a.m. – 8:00 p.m.
Wednesday: 8:00 a.m. – 8:00 p.m.
Thursday: 8:00 a.m. – 8:00 p.m.
Friday: 8:00 a.m. – 5:00 p.m.
Saturday: 9:00 a.m. – 1:00 p.m.
Sunday: CLOSED

Dr. Katherine Lisoni – Family Medicine

Site Medical Director

Dr. Katherine Lisoni is a practicing family physician and Site Medical Director for HealthLinc Mishawaka. She is board certified and has extensive experience in a broad range
of family practice including pediatrics, women’s health, mental health, adult and geriatric medicine. Dr. Lisoni has completed medical rotations in several provinces of Argentina. She volunteers with agencies that focus on under-served populations and health education. Dr. Lisoni is fluent in English and Spanish.

Specialties: Pediatrics, Women’s Health, Mental Health, Adult & Geriatric Medicine


Arnie Lou Baker – Family Nurse Practitioner


Dr. Rebecca Bauer – Family Medicine

Dr. Rebecca Bauer is a family practice physician seeing patients in every stage of life from birth to adult. She is most interested in providing prenatal, pediatrics, and women’s health care. Dr. Bauer specializes in women’s health procedures including pap smears, colposcopies, cryotherapy and Loop Electrosurgical Excision Procedure (LEEP). She is credentialed for vaginal deliveries, but also acts as the first assistant to the collaborating obstetrician for C-sections and is therefore able to provide prenatal care to women having repeat C-sections.

Dr. Bauer enjoys taking care of new babies and providing continued care for the babies she delivers. She is experienced in procedures on newborns including circumcisions, treating lip and tongue ties, and the removal of abnormal lesions on the skin. Dr. Bauer enjoys taking care of the entire family, parents and children.

Specialties: Prenatal Care, Pediatrics, Women’s Health Care


Kristen Bessler – Pharmacy Resident


Broxton Davis – Clinical Pharmacist


Erica Garrett – Certified Nurse Midwife

Erica Garrett, CNM, MSN, BSN, is a certified nurse midwife at the Mishawaka clinic. She is a graduate of Indiana University and Frontier Nursing University. Erica has worked as an RN in the Mother-Baby Unit and in Breastfeeding Support Services in the nursery and NICU at Memorial Hospital South Bend/Beacon Health Systems. She is also a Certified Lactation Specialist.


Milcah Gichuru – Family Nurse Practitioner

Milcah Gichuru, FNP, is a family nurse practitioner at HealthLinc’s Mishawaka Clinic. With over 600 hours of clinical rotation in the areas of family health, adults and geriatrics, pediatrics, and women’s health, Milcah provides comprehensive care for a wide variety of patients with diverse needs. Milcah’s Family Nurse Practitioner Master’s degree was completed at the University of Michigan, Ann Arbor, with undergraduate studies at Indiana University. In addition to practicing at HealthLinc, Milcah is an RN on staff at St. Joseph Regional Medical Center in Mishawaka.


Kathleen Long – Family Nurse Practitioner


Dr. Josh Majerus – Chiropractor

Dr. Majerus’ practice focuses on treating pain and dysfunction of the spine, muscles, and joints. He has seen the impact chronic spine and muscle pain has on patients. Dr. Majerus’ main objective is to reduce pain and suffering and improve the quality of life without the use of medicine. He is a recent graduate of Logan University in St. Louis and has specific training integrating chiropractic care into a traditional medical setting. Dr. Majerus has experience in community health centers and working with an underserved population. He understands the importance of using each visit to not only provide an appropriate diagnosis, but to also offer health education, reassurance and recommend evidence-based treatment plans.

Specialties: Joint Manipulation, Musculoskeletal Rehabilitation, Patient Self-Care


Ashley Thiele – Family Nurse Practitioner

Ashley Thiele’s practice is focused on disease prevention for the entire family from birth throughout their lifespan. She recently completed her MAT (Medication Assisted Treatment) training and is looking forward to caring for those suffering with addiction. Ashley has a special interest in caring for at-risk patients suffering from medical and mental health problems as well as in primary prevention.

Specialties: MAT (Medication Assisted Treatment), Chronic Disease Management, Family Medicine With Primary Prevention


Lois Wagley – Family Nurse Practitioner

Lois Wagley is a Family Nurse Practitioner at the Mishawaka clinic. She is an experienced practitioner and provides high quality comprehensive care to a wide variety of patients. Lois believes in providing individual care to her patients and strives to create a partnership in order to meet their unique needs. She enjoys providing care for the whole family from children to older adults. Lois has a special interest in the management of menopause and providing care to the LGBTQ community.

Specialties: LGBTQ Health and Wellness, Family Practice, Menopause

Thomas Keller – Licensed Clinical Social Worker

"Great employees, nice, clean environment. Love it when they find ways to help those with low or no income. Every little bit helps so much and they sometimes have contests or promotions to help you help yourself. I am entered to win a Kindle because I had a PAP done. How awesome is that?"


"My doctor is wonderful. He takes his time and I never feel rushed. I am always in the room on time and out within a reasonable time."

"First time and I was absolutely impressed. Had a dental emergency and no insurance. HealthLinc went above and beyond my expectations. Ended up having 5 teeth pulled that have been bothering me for years. No other dentist would even touch them because I had no dental insurance. I can honestly say I was very impressed and thankful to finally have decent care at a decent price."

"I love HealthLinc! Service is always fast and friendly. Nurses and doctors are wonderful! I refer HealthLinc to all my friends!"

"Comfortable atmosphere, sliding scale payments with good physicians that care. They truly care about the patients and go above and beyond to help. I went to HealthLinc before having insurance, but still go here now that I do because I enjoy them that much. I would recommend to anyone seeking general medical help."

"I have had nothing but caring doctors and dentist here for my child. On her first dentist apt. they were very understanding and patient with my child who was afraid and comforted her very well. The doctor was amazing and I'm happy she's my daughter's new family physician."


"When we lost our health insurance I panicked, but a HealthLinc Navigator was there to help. She held my hand through the entire process and made sure I was taken care of. In a time of such uncertainty, she made me feel confident that we would be OK. "

We create healthy communities.

Same Day Appointments are Available.

For normal and after-hours healthcare advice.

HealthLinc, Inc. receives HHS funding and has Federal Public Health Service (PHS) deemed status with respect to certain health or health-related claims, including medical malpractice claims, for itself and its covered individuals.

HealthLinc, Inc. receives HHS funding and has Federal Public Health Service (PHS) deemed status with respect to certain health or health-related claims, including medical malpractice claims, for itself and its covered individuals.

HealthLinc, Inc. is a Health Center Program grantee under 42 U.S.C. 254b, and a deemed Public Health Service employee under 42 U.S.C. 233(g)-(n)