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: 7:30 a.m. – 8:00 p.m.
Tuesday: 7:30 a.m. – 8:00 p.m.
Wednesday: 7:30 a.m. – 8:00 p.m.
Thursday: 7:30 a.m. – 8:00 p.m.
Friday: 7:30 a.m. – 5:00 p.m.
Saturday: 9:00 a.m. – 1:00 p.m.
Sunday: CLOSED

Optometry Hours of Operation:
Monday: 8:00 a.m. – 6:00 p.m.
Tuesday: 9:00 a.m. – 7:00 p.m.
Wednesday: 8:00 a.m. – 6:00 p.m.
Thursday: 8:00 a.m. – 6:00 p.m.
Friday: CLOSED
Saturday: CLOSED
Sunday: CLOSED

Lab Hours of Operation:
Monday: 8:00 a.m. – 7:00 p.m.
Tuesday: 8:00 a.m. – 7:00 p.m.
Wednesday: 8:00 a.m. – 7:00 p.m.
Thursday: 8:00 a.m. – 7:00 p.m.
Friday: 8:00 a.m. – 4:00 p.m.
Saturday: 9:00 a.m. – 12:30 p.m.
Sunday: CLOSED

Dr. Katherine Lisoni – Family Medicine

Site Medical Director

Dr. Lisoni is board certified and has extensive experience in a broad range of family practices, including pediatrics, women’s health, mental health and 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 and Geriatric Medicine


Joshua Avery – Family Nurse Practitioner

As a family nurse practitioner, Joshua is passionate about helping his patients live happy and healthy lives. He provides comprehensive care to patients of all ages and has experience working with a wide range of medical needs. Joshua takes a patient-centered approach to care and works with our other providers to ensure each patient receives the best care possible. He received his master’s in nursing from Indiana University School of Medicine.

Specialties: Chronic Disease Management, Preventative Care, Patient Education


Arnie Lou Baker – Family Nurse Practitioner

Arnie Lou is a graduate of HealthLinc’s Family Nurse Practitioner Residency Program and has many years of experience working in the community healthcare environment. She believes that taking a few extra minutes with a patient to educate them on healthy living is an important part of overall health. Arnie Lou appreciates getting to build relationships with her patients and enjoys getting to treat the whole family.

Specialties: Family Practice, Chronic Disease Prevention and Management, Patient Education


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


Kayti’s practice is focused on the health and wellness of families. She provides both preventative care and chronic disease management across the lifespan. Kayti believes in shared decision-making with each individual and family, incorporating evidence-based practice guidelines into her care and providing individualized education.

Specialties: Family Medicine, Chronic Disease Management, Preventative Care


Dr. J. Douglas Busch – Chiropractor

Dr. Busch is a chronic pain specialist with over 26 years of clinical experience. He is focused on helping patients reduce or eliminate symptoms that are causing them pain, and goes above and beyond to make them feel comfortable, confident and safe in his care. Dr. Busch can help all members of the family with pain management, from child to adult.

Specialties: Chronic Pain, Pediatric Care, Athletic Performance


Ashley Fugate– Family Nurse Practitioner

Ashley’s practice is focused on disease prevention for the entire family, from birth through adulthood. She recently completed her MAT (Medication Assisted Treatment) training and is looking forward to caring for those suffering from 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



Susana Lagunas – Family Nurse Practitioner

Susana focuses on providing patient-centered care that treats the whole person, not just one issue, and is dedicated to caring for underserved communities. She believes that good health can be achieved when all areas of a patient’s health, including physical, emotional, spiritual, cultural and environmental, can be addressed. Susana works closely with the entire healthcare team to help patients access all the beneficial resources they need. To better serve her patients, Susana has received additional training for treating hepatitis C, substance abuse disorder and is specialized in HIV management through the American Academy of HIV Medicine.

Specialties: Medicine Assisted Treatment (MAT), HIV Treatment, Hepatitis C Treatment


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Kathleen Long – Family Nurse Practitioner

Kathleen likes to promote a healthy lifestyle to help prevent illness and increase her patients’ quality of life. She received her Bachelor of Science in nursing from Goshen College and her doctorate degree in nursing, with a focus on family and community health and a sub-specialization in genetic health, from Rush University.

Specialties: Genetic Diseases, Preventative Medicine, Lifestyle Changes


Deborah Wickenden – Family Nurse Practitioner

As a family nurse practitioner, Deb focuses on the needs of patients in all stages of life. This allows her to build relationships with patients and their families, establish trust and provide education on disease prevention and healthy lifestyle habits. Deb likes to put her patients at ease and encourage them to be active participants in their healthcare decisions.

Specialties: Preventative Care, Chronic Disease Management, Family Practice


Brock Davis – Clinical Pharmacist

Brock Davis is the Clinical Pharmacist Lead for HealthLinc and practices out of the Mishawaka location.  He is currently board certified in Ambulatory Care and Advanced Diabetes Management.  He spends much of his clinical time managing chronic disease states and helping improve the Mishawaka clinic through co-chairing of the Quality Committee. Brock also serves on the Board of Directors for the Indiana Pharmacists Association and is the Primary site Coordinator for HealthLinc’s PGY1 Community Pharmacy Residency Program.  Brock was also awarded the inaugural, HealthLinc Mary Beth Witcher “Patient Advocate” Award in 2019.

Specialties: Diabetes, Hypertension, Pharmacy Resident/Student Training


Chelsea Herrarte – Pharmacy Resident


Devin Valpatic – Clinical Pharmacist

Devin received her Doctorate of Pharmacology degree from Purdue University. After graduating, she completed her Community-Based Pharmacy Residency at Advocate Aurora Health in Milwaukee, WI. Devin enjoys helping manage chronic diseases with providers and working with patients to reach their goals. She values working for an organization that focuses on bettering the health and wellness of their community.

Specialties: Diabetes, Hypertension

Dr. Lourdes Lorino – OPTOMETRIST

Dr. Lorino views optometry as more than an eyeglass prescription – she sees eyes as windows to a patient’s health. She values the role of comprehensive eye exams in helping diagnose health issues like diabetes and high blood pressure. Being a primary care optometrist offers Dr. Lorino the opportunity to help patients with their vision needs and provide them access to other providers for care they may not know they need. She also speaks fluent Spanish.

Specialties: Diabetic Ocular Exams, Comprehensive Checkups, Glaucoma

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.

Lilia Bonilla - Family Nurse Practitioner

Site Medical Director

Lilia Bonilla is the Site Medical Director and a Nurse Practitioner in Family Medicine. She is board certified with over 19 years of experience as a highly skilled and dedicated family nurse practitioner. Lilia provides comprehensive care for a wide variety of patients with diverse needs. She has extensive experience in family and adult medicine, women’s health and pediatrics. Lilia is a member of the American Association of Nurse Practitioners and American Nurses Association. She also serves as a preceptor and mentor for Nurse Practitioner Residents. Lilia is fluent in both English and Spanish.

Specialties: Family Practice, Women’s Health, Pediatrics


Diana Garcia Burns - Family Nurse Practitioner

Diana Garcia Burns has been serving East Chicago for over 30 years. She is experienced in family medicine, emergency medicine, public health, and administration. Diana is board certified through the American Nurses Credentialing Center and is certified in Advanced Life Support, Pediatric Life Support, and Stroke Care. She is currently an instructor for the American Heart Association and a member of the Indiana Nurses Association (INA), American Nurses Association (ANA) and American Association of Nurse Practitioners (AANP).

Specialties: Emergency Medicine, Public and Environmental Health


Dr. Ed S. Hassan - Internal Medicine

Dr. Hassan has practiced medicine on four continents: Africa, Asia, Europe, and North America, giving him a unique perspective to health care. He received additional training in Internal Medicine at Cook County Hospital in Chicago. Dr. Hassan is certified by the American Board of Internal Medicine and is a member of the American College of Physicians. He is fluent in English, Spanish and Arabic.

Specialties: Hypertension, Diabetes, Asthma, Elevated Blood Cholesterol


Salman Nadine headshot with HealthLinc lab coat

Nadine Salman - Family Nurse Practitioner

Nadine Salman delivers patient-centered care from infancy to adulthood by providing education and counseling on health promotion and disease prevention. She serves as an advocate by working in a partnership with patients and families to provide holistic care. Nadine’s passion is to give patients the tools and knowledge to help them make better health choices so they can live longer and healthier.

Specialties: Pediatrics, Disease Prevention, Adult Health and Wellness Promotion


Jessica Sinclair - Clinical Pharmacist


Dr. Carl Toren - Pediatrician

Dr. Toren’s practice is focused on the health of children, both for the present and the future. He partners with families to monitor a child’s growth, development, nutrition, and safety, while following expert guidelines for vaccinations and screenings. If sickness comes, he offers comprehensive examinations, tests to discover the cause and then arranges any necessary treatment and follow-up. Dr. Toren is fluent in both English and Spanish.

Specialties: Pediatric Development, Pediatric Nutrition, Immunizations


Charita Weekly - Family Nurse Practitioner

Charita Weekly’s number one priority is providing excellent, comprehensive health care. She serves the entire family with a focus on promoting health and maintenance. Each approach is age specific to her patient and transitions throughout their life span. With emphasis on disease prevention and wellness, she treats the whole person and assists in achieving a higher quality of life.

Specialties: Family, Medical Examiner for the Department of Transportation, Disease Prevention

Dr. Firas Adhami - Dentist

Dr. Firas Adhami is committed to alleviating the health disparities of the underserved. He is the recipient of the Excellence in Prosthodontics Award from the American College of Prosthodontics. In May 2016, he published an article in the Journal of the American Dental Association entitled “Soft-tissue calcification on a panoramic radiograph.” Dr. Adhami maintains active memberships in the American Dental Association and the Academy of General Dentistry.

Specialties: Extractions, Root Canal Therapy, Prosthodontics


April Chaja - Dental Hygienist

LaTonya Cooper - Licensed Clinical Social Worker

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)