1001 N. Sturdy Rd.
Valparaiso, IN 46383

Toll Free: (888) 580-1060
After Hours: (888) 580-1060
Local Phone: (219) 462-7173
Fax: (219) 462-7504

Medical 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

Dental Hours of Operation:
Monday: 8:00 a.m. – 8:00 p.m.
Tuesday: 8:00 a.m. – 6:00 p.m.
Wednesday: 8:00 a.m. – 8:00 p.m.
Thursday: 8:00 a.m. – 6:00 p.m.
Friday: 8:00 a.m. – 4:00 p.m.
Saturday: CLOSED
Sunday: CLOSED

Dr. Jennifer Maya – Family Medicine

Site Medical Director

Dr. Jennifer Maya is a family medicine physician in the Valparaiso clinic where she also serves as Site Medical Director. She served as chief resident and completed the International Health Track while in residency at St. Joseph Regional Medical Center in South Bend, IN. Dr. Maya is an active member of several professional associations including the Indiana State Medical Association (ISMA). She has held leadership roles and received many honors and awards for her service. Dr. Maya is fluent in English and Spanish.

Specialties: Family Practice, Well-Child Checks and Immunizations, Senior Health


Dr. Amanda Mathews – Family Medicine

Assistant Site Medical Director

Dr. Amanda Mathews is dedicated to working with underserved communities and improving health disparities. She strives to improve the physical health of patients with chronic mental illness. In addition, Dr. Mathews acquired training and is part of a team working with pharmacists to treat Hepatitis C. Her goal is to build relationships with her patients and work towards better health together. Dr. Mathews is also passionate about teaching and developing other health professionals. She currently works with the nurse practitioner residency program at HealthLinc.

Specialties: Hep C Treatment, Integration of Medical Care and Mental Health Care


Karen Cercone – Family Nurse Practitioner


Kari Evans – Family Nurse Practitioner

Kari Evans is a highly skilled and dedicated family nurse practitioner. She has over 25 years of extensive nursing experience in emergency, critical care, and education. In addition, she works with the HealthLinc Residency Program. Kari holds several professional certifications including emergency nurse certification, ENPC, TNCC, and ACLS.

Specialties: Past Provider and Instructor of Pediatric Core Course (ENPC) & Trauma Nurse Core Course (TNCC) Certified Emergency Nurse (CEN), Preceptor of Family Nurse Practitioner Students


Dr. Keith Gingerich – Family Medicine

Dr. Gingerich is a family medicine physician in Valparaiso. He graduated from Valparaiso University and received his M.D. from Indiana School of Medicine. His areas of expertise include senior health and Medicare. He is experienced in family practice and emergency medicine. Dr. Gingerich has served as a volunteer board member for many organizations, such as the United Way of Porter County and the Christian Community Action of Porter County. He has served the Valparaiso community for over 20 years.

Photo of HealthLinc FNP resident Monica Gomez

Monica Gomez – Family Nurse Practitioner Resident

Monica is dedicated to providing every patient with exceptional care and improving health outcomes to better her patient’s lives. She works with the patient to determine the best individualized treatment plan. To her, it is important to treat the whole patient and address all of their needs and concerns.

Specialties: Women’s Health and Diabetes Education

Asha Koshy – Family Nurse Practitioner

Asha Koshy is a HealthLinc family nurse practitioner in the Valparaiso clinic. She graduated with a Master of Science in Nursing from San Francisco State University and obtained a Bachelor Degree from San Jose State University, where she was a Resident Advisor. Koshy is a lactation-education counselor and is passionate about pediatric medicine.

Jeremy Michaelis – Family Nurse Practitioner Resident

Jeremy’s practice focuses on building a positive relationship with everyone he serves. He partners with his patients to establish trust while providing evidence-based care. Jeremy is a board-certified family nurse practitioner with 5+ years of ICU experience. Prior to Jeremy’s nursing career, he was a touring singer/songwriter, visiting most of the United States. Originally from Canada, Jeremy now calls Northwest Indiana his home along with his wife and three sons.

Specialties: Geriatrics, Preventative Care, and Immunizations

Dr. Reem Mohammed – Podiatry


Lisa Nelson – Family Nurse Practitioner

Lisa Nelson is an experienced family nurse practitioner in the Valparaiso clinic. She specializes in the holistic treatment of acute and chronic health problems. Lisa has a deep interest in the areas of health and wellness with an emphasis on improving health outcomes through a multidimensional approach. She has an interest in educating future Nurse Practitioners and patients to meet their goals.

Specialties: Wellness, Women/Children, Mental Health, Obesity


Dr. Leah Osorio – Family Medicine

Leah Osorio is a family medicine physician at the Valparaiso Clinic. She is a graduate of the University of Minnesota (Summa Cum Laude with Distinction) and Loyola University Chicago Stritch School of Medicine. Dr. Osorio did her residency at United Family Medicine in Minnesota where she was also Chief Resident. She has also completed the United Family Medicine Fourth Year of Mastery program in integrative medicine and development of group care model for diabetes management.


Dr. William Roman – Podiatry

Dr. William Roman is a board certified podiatrist with more than 15 years of experience. He offers in-office appointments at HealthLinc for such conditions as planter fasciitis, foot and ankle injuries, nerve and wound care, and orthopedic fittings. Dr. Roman specializes in podiatric surgery and is affiliated with St. Mary Medical Center in Hobart.

Specialties: Diabetic Foot Care, Fungal Infections and Warts, Bunions and Ingrown Toenails, Corns and Calluses, Plantar Fasciitis


Alexander Tokarski – Family Nurse Practitioner



Lynn Thoma – Clinical Pharmacist

Lynn is a clinical pharmacist as well as the director for the HealthLinc Pharmacy Residency Program. She is a graduate of the Purdue University Pharmacy Program and is a sought after lecturer on topics involving community pharmacy and diabetes education. Lynn is an active member of many community and professional organizations.

Dr. Isaac Zeckel – Chief Dental Officer

Isaac Zeckel, MS, DDS, graduated from Indiana University with a Master’s of Science in Cellular and Integrative Physiology in 2005 and a Doctor of Dental Surgery in 2011. While attending Indiana University, he researched new methods of identifying and classifying caries and developed an electronic training program that is used to teach early caries detection for dental students. Since graduating from Indiana University School of Dentistry, Dr. Zeckel has been caring for the oral health needs of HealthLinc patients as a full-time staff dentist. In May 2014, Dr. Zeckel accepted the Dental Director position at HealthLinc and has since been promoted to Chief Dental Officer due to the growth in his department. He strives to continue expanding and improving the dental care patients at HealthLinc receive.


Dr. Brittanie Patel – Dentist



Dr. Dean Webb – Dentist

Dean A. Webb, DDS, is a dentist with HealthLinc. Upon completing his Bachelor’s of Science at Valparaiso University, he graduated from the University of Michigan School of Dentistry with his DDS. He worked in the Emergency Department and Oral Surgery at the University of Michigan during breaks. He also served as a Dental Anatomy Instructor, a MiDent Instructor, and with the Check-Up Clinic while at the University of Michigan.



Melissa Johannsen – Dental Hygienist



Julie Sausman – Dental Hygienist

Dr. Michael Roach – Optometrist

Dr. Michael Roach has over 28 years of clinical experience in comprehensive optometric eye care. Using the latest technology and diagnostic equipment including retinal photography, he provides precise eyeglass prescriptions and manages issues of the eye including diabetes, dry eye, and eye infections. Dr. Roach also specializes in evaluation of the eye for age related degeneration, cataracts, and visual needs for school aged children.

Specialties: Comprehensive Eye Care, Diabetic Eye Care, Eye Infections

Nicole Musenja– Licensed Mental Health Counselor

Nicole received her bachelor’s degree in psychology from Wittenberg University and has a master’s degree in counseling psychology/mental health counseling. She believes that a little caring goes a long way when people feel invisible and that it is imperative to give a voice to the voiceless in order to get them the care they need, regardless of their socioeconomic status, race and gender. As a behavioral health consultant, Nicole’s role is to offer a safe emotional environment for patients to feel comfortable in expressing their emotions as they work through their medical challenges. 

Specialties: Adolescents, Underserved Populations and Active and Retired Military Personnel 


Kimberly Welsh – 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)