Who We Are
At Greenleaf Medical Associates, we are dedicated to delivering exceptional, patient-centered care that prioritizes your well-being at every stage of life. By combining advanced medical expertise with personalized attention, we empower our patients to make informed decisions and achieve lasting health. Our team is committed to treating you with the same compassion and respect we would offer our own families.

Our Mission
Greenleaf Medical Associates is a trusted, multi-specialty practice providing comprehensive care to families in the Chicago area and beyond. Our team—led by Dr. Peter Puthenveetil, Julia Felix PA-C, Tiffany Hendrickson DNP and Marlin Cervantes, MSN, APRN, FNP-C—brings together decades of experience in internal medicine, preventive care, and lifestyle medicine. From routine check-ups to complex chronic disease management, we focus on listening, educating, and partnering with our patients to help them live their healthiest lives.
Our Vision
Our vision is to redefine the healthcare experience by building lasting trust, embracing innovation, and ensuring care is accessible to all. We aim to create a healthier community—where preventive medicine, patient education, and collaborative care lead to improved outcomes and a better quality of life for everyone we serve.
Meet our Medical team
Peter J. Puthenveetil, M.D.
Board Certified in Internal Medicine
Julia Felix, MS., PA-C
Certified Physician Assistant
Tiffany Hendrickson, DNP, APRN, FNP-BC
Doctor of Nursing Practice
Marlin Cervantes, MSN, APRN, FNP-C
Advanced Practice Registered Nurse – Family Medicine
140+ Google Reviews

Dr. Puthenveetil is a wonderful and caring doctor! I was unhappy with my previous PCP and switched doctors 2 years ago to Dr. Puthenveetil. He was highly recommended by a good friend of mine. Check in is always smooth and timely.
Wendy Lee
Dr. Puthenveetil is an outstanding and knowledgeable physician. And he is a great listener and has a warm personality. He follows up quickly with patients with test results. He is on time for appointments. He has been my doctor for decades
Jennifer Johnson
It’s never fun to go to the doctor, but I always have a good experience with the wonderful people who work there. Dr. Puthenveetil takes as much time as needed and never appears rushed. He gives me a feeling that he really cares
Tami M
If I could give Dr. Peter 5000 Stars, I would. I’ve been seeing his practice for over 12 years now and putting my life in his hands is the best medical decision I’ve made. It’s important to have a good medical Dr. that keeps you healthy at all times
Edward De La Torre
Dr Peter is a great doctor. Our family has been with him for many years. He is very knowledgeable, accommodating, offers good recommendations of doctors in other disciplines and is friendly. He also has a very pleasant
B Rygiel
Dr. Puthenveetil is a wonderful and caring doctor! I was unhappy with my previous PCP and switched doctors 2 years ago to Dr. Puthenveetil. He was highly recommended by a good friend of mine. Check in is always smooth and timely.
Wendy Lee
Dr. Puthenveetil is an outstanding and knowledgeable physician. And he is a great listener and has a warm personality. He follows up quickly with patients with test results. He is on time for appointments. He has been my doctor for decades
Jennifer Johnson
It’s never fun to go to the doctor, but I always have a good experience with the wonderful people who work there. Dr. Puthenveetil takes as much time as needed and never appears rushed. He gives me a feeling that he really cares
Tami M
If I could give Dr. Peter 5000 Stars, I would. I’ve been seeing his practice for over 12 years now and putting my life in his hands is the best medical decision I’ve made. It’s important to have a good medical Dr. that keeps you healthy at all times
Edward De La Torre