Healthonomic Primary Care

Internists located in Evergreen Park, IL (NEW LOCATION), Orland Park, IL & Palos Heights, IL

Healthonomic Primary Care provides comprehensive healthcare for adults and adolescents in Orland Park and PalosHeights, Illinois. Founded by Dr. Maria Lentzou, the clinic serves as a primary care facility for disease prevention, chronic disease management, diagnostics, and treatment.

Together, Dr. Maria Lentzou and Dr. Vargas-Zapata bring a combined 45 years of medical expertise to their patients. As primary care providers, they can help you with routine physicals, labs, immunizations, weight loss, diabetes management, asthma treatment, and much more.

With a dedicated answering service and extended office hours, including Saturdays, the clinic ensures access to quality medical services. For additional access to testing and inpatient services, the practice is affiliated with Advocate Christ Hospital and Palos Health. Healthonomic Primary Care


Our Doctors


Dr. Maria Lentzou, MD

Internal Medicine

With her expertise in internal health, Dr. Maria Lentzou serves the community of Orland Park, Illinois, at Healthonomic Primary Care. Her clinic serves as a primary care facility, providing diagnostics and treatment for adults in the Chicago suburbs.

Dr. Lentzou graduated at the top of her class at the University of Athens and reached the top 10% during her residency at the University of Illinois at Chicago Medical School. She earned her board certification in internal care in 2000 and has been practicing for over 17 years.

As the founder and president of her multi-location medical group, Dr. Lentzou has established her health care services In Orland Park and Palos Heights. The medical group is affiliated with Advocate Physician Partners, Advocate Christ Hospital, and Palos Health.

Dr. Lentzou is an active member of her community in the southwest suburbs of Chicago. She speaks English, Polish, Greek, and Spanish. She volunteers at her church every Saturday, and her faith is the driving force behind her dedication to providing excellent healthcare to those she serves.

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Dr. Lentzou Receives Award

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Dr. Rafael Vargas-Zapata, MD

Family Medicine

Dr. Rafael Vargas Zapata is originally from Costa Rica, grew up in California, and currently resides in River Forest, IL. He went to college at the Autonomous University of Neuvo Leon, form which he graduated in 1983, and continued on to complete residency training at St. Mary of Nazareth. Dr. Vargas-Zapata is 65 years old with 29 years of practice in Family Care. Interesting hobbies include reading and golfing in his spare time.

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Dr. Carrie Salvia,  DO

Family Medicine

Dr. Carrie Salvia is the newest physician to join Healthonomic Primary Care. She is a recent graduate of the Advocate Christ Family Medicine Residency Program, where she served as Chief Resident. Dr. Salvia is a board certified Family physician through the American Board of Family Medicine. She is also a member of the American Academy of Family Physicians. Originally from Pennsylvania, she attended Penn State University for her undergraduate studies. She then relocated to Chicago for postgraduate education at Midwestern University in Downers Grove where she earned both a Masters in Biomedical Science, as well as her Doctor of Osteopathic Medicine. Dr. Salvia is excited to grow her practice in the south side of Chicago. She treats patients of all ages, including children, adolescents and adults. She has experience in diagnosing and treating complex and chronic disease processes, and places a large emphasis on disease prevention in her day to day practice. She enjoys partnering with her patients to build longstanding relationships while helping them achieve their optimal health goals.

Dr. Salvia currently resides in downtown Chicago. In her free time, she enjoys staying active with running and Pilates. She also enjoys trying out new restaurants in the area as well as traveling to visit family and friends.

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Marybell Ramirez, FNP-C

Family Medicine

Board certified nurse practitioner, specializing in family practice. Completed a Bachelor of Science in Nursing degree at Purdue University in Indiana. Earned a Master of Science in Nursing degree at Chamberlain University, College of Nursing in Illinois. Board certified by the American Academy of Nurse Practitioners (AANP) as a family nurse practitioner. As a nurse, I have worked in the home health sector and in the specialty of ophthalmology. The home health sector has allowed for a vast exposure to various health fields such as cardiology, gastroenterology, neurology, ENT, orthopedics, urology, psychiatry, women's health, geriatrics, pre and post surgical care, and wound care.

In collaboration with the providers of Healthonomic Primary Care, my mission as a nurse practitioner is to provide the highest level of quality healthcare in order to promote wellness, educate on disease and illness prevention, along with increasing access to healthcare for those in need.

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Ryan Kim, NP

Family Medicine

Ryan Kim is a board-certified nurse practitioner specializing in family practice. He completed his Bachelor of Science in Nursing at Governors State University, in University Park, Illinois and then earned his Master of Science at Governors State University. He holds national board certification through the American Nurses Credentialing Center (ANCC) as a family nurse practitioner. As a nurse, he has worked in emergency health and medical-surgical departments. He works closely with the team at Healthonomic Primary Care to deliver a holistic approach to healthcare.

In his spare time, he enjoys volunteer work having taught Sunday school at his church for over 10 years, and participating in two missions trips to Guatemala. He hopes to eventually be able to participate in medical missions and outreach to underserved communities.

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Choose A Location

Orland Park Office

14400 S John Humphrey Drive, 1E,
Orland Park, IL 60462
Sunday Closed
Monday 7:30am - 6pm
Tuesday 7:30am - 6pm
Wednesday 7:30am - 4pm
Thursday 7:30am - 6pm
Friday Closed
Saturday 8:00am - 2pm  (Two weekends monthly)

Palos Heights Office

12050 South Harlem Ave, Suite A,
Palos Heights, IL 60463
Sunday Closed
Monday 7:00am - 3pm
Tuesday 7:00am - 3pm
Wednesday 7:00am - 3pm
Thursday 11:00am - 7pm
Friday 8:00am - 2pm
Saturday 8:00am - 2pm

Evergreen Park Office

9401 S Pulaski Ave, suite101
Evergreen Park, IL 60805
Sunday Closed
Monday 11:00am - 7pm
Tuesday 8:00am - 4pm
Wednesday 11:00am - 7pm
Thursday 8:00am - 4pm
Friday 7:30am - 3pm*
Saturday 8:00am - 2pm* (Two weekends monthly)

* On the days we are open Saturday, we will be closed on the preceding Friday.