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Meet Our Providers

Dr. Samuel Jonnalagadda, M.D.

Dr. Sam is a Board Certified Physician in Internal Medicine. His passion and dedication to people led him down an unlikely and surprising path as Dr. Sam chose to open his own practice directly after training. His strong work ethic and love for medicine supported the undercurrent of a rapidly growing private practice. His calm and caring nature helped to nurture each individual patient relationship. A unique quality that Dr. Sam possesses is his ability to treat each patient respectfully and compassionately, regardless of the situation. 

Dr. Sam completed his undergraduate degree through University of Michigan in 1993 and graduated from Saba University School of Medicine in 1999. He completed his residency in Internal Medicine in Grand Rapids at Spectrum Health – MSU program. He and his wife Dr. Jain started the practice in 2004. They are both devoted to creating a warm, patient-centered atmosphere that focuses on each patient’s needs. It is important for Dr. Sam to keep up with continuity of care for his patients, especially the ones with complex medical issues. He makes sure to follow up with his patients at all transitions of care (office, hospital, nursing home, urgent care). He makes himself available 24/7 to his patients via pager. When Dr. Sam is not working, he enjoys music, sports and spending time at home with his wife and kids.

Dr. Alka Jain, M.D.

Dr. Jain is a Board Certified Internist who takes pride in having a strong work ethic and meticulous attention to detail. Dedication to patient care is exemplified by her strong interpersonal skills, solid background of medical knowledge, and ability to effectively relate to patient’s needs. These qualities are the backbone for the success of the private practice, Commerce Primary Care, started in 2004 by herself and her husband, Dr. Sam Jonnalagadda. They are as devoted to their family as they are to their patients. She met her husband in Ann Arbor where they completed their undergraduate degrees at the University of Michigan. She went on to obtain her MD from American University of the Caribbean. Her and her husband completed their Internal Medicine Residency in Grand Rapids in the Spectrum Health – MSU program.

Since starting her career in medicine, Dr. Jain has started a very successful private practice and currently serves as the practice manager. She really enjoys the “business” development aspect of medicine. She has also been a medical director for a large Sub-acute Rehab and National Hospice and has worked as a hospitalist. She has served on several hospital and nursing facility committees in relation to Transitional Care, and recently was named to the Board of a Pioneer ACO. As she served as Medical Director for a Sub-acute Rehab, she was blessed to have been able to serve as a physician in so many different aspects of the medical spectrum. With the knowledge she has gathered, she hopes to promote excellence in patient care while developing her passion for transitional care. She is particularly passionate about our seniors, and hopes to help them age with grace.

Kathleen Farquhar, P.A.-C

Kathleen Farquhar P.A.-C

Kathy is an internal Medicine Physician Assistant that has been board certified since 1999.She graduated Summa Cum Laude with a Bachelor’s of Science degree in Biology and a Master’s of Physician Assistant studies from the University of Detroit-Mercy. During her time as a P.A.she has worked in both inpatient and outpatient settings as well as subacute care.

With 25 years of patient care and specializing in acute and chronic medical conditions, Kathy performs services such as; Pap smears, joint injections (knee and shoulder), mole removal, suturing lacerations, incision and drainage of abscesses, and excise thrombosed external hemorrhoids.

Kathy prides herself on looking at the patient as a whole, and doing whatever she can to help each patient achieve their optimal health and wellness. Her patients often comment on her caring nature and thoroughness.
Outside of work she enjoys spending time with her family and attending her three children’s multiple sporting events. When not sitting in a gym or on a field she enjoys warm weather and her bible.

Kathy appreciates the community in which Commerce Primary Care serves as she has been involved in multiple severe cases regarding Covid-19. Her persistent efforts to continue her education to properly educate and treat her patients during the pandemic is highly respected.

Jessica Graham, N.P .-C

Jessica Graham, N.P .-C

Jessica is a board certified Family Nurse Practitioner. She graduated from Boston College with a Master of Science in Nursing in 2010, and has been a valuable part of our medical team ever since. During her time with Commerce Primary Care, she has practiced internal medicine in a variety of settings, including our primary care office and various sub-acute rehabilitation facilities (working alongside Dr. Jain). Jessica has a special interest in holistic medical treatment throughout the lifespan, management of chronic diseases, and preventive medicine. She has a particular passion for helping her patients implement and sustain healthy lifestyles for the long-run. Outside of work, she enjoys spending time with her family, vegetable gardening, cooking, biking, traveling, hiking, kayaking and camping. Jessica has been with CPC since December 2010.

Lana Elia, N.P.-C

Lana Elia, N.P.-C

Lana Elia graduated with high honors from South University as a certified Family Nurse Practitioner and a Master of Science degree. Prior to that she obtained her Bachelor of Science in Health Sciences and a Bachelor of Nursing from Oakland University. Lana has a diverse background in health care where she previously worked as a surgical and home health care nurse. She is committed to making a difference in patient’s lives and providing the best quality of care. Her passion for practicing medicine stems from personal experiences that drive her to always put patients first. Her compassion for helping and healing is evident upon an initial acquaintance. Outside of work she enjoys spending time with family and friends, traveling, and reading. She loves being a part of the Commerce Primary Care family and committing herself to the welfare of her patients.