Welcome

The Maxwell Group is committed to providing comprehensive, compassionate care in a patient friendly environment. We empower our patients with knowledge to achieve their healthcare goals, to live healthy lives and to prevent disease. You can count on the experience of our Internal Medicine physicians at The Maxwell Group for high quality, personalized medical care.

Attention Medicare Patients

Please create an account with Mymedicare.gov and enter your primary care doctor’s name. Select “add as my primary clinician”.
Selecting your primary care physician allows patients to take full advantage of the many ACO (accountable care organization) benefits afforded to patients when aligned with their PCP at The Maxwell Group.

Maxwell Group New Provider Announcement

Please help us welcome the newest addition to our practice – Dr Umesh Narayanan. Dr. Narayanan is a Board Certified Family Practice physician and has just completed his Fellowship Program in Geriatric Medicine. Please inquire now regarding appointment opportunities!

Exciting Maxwell Group News

The Maxwell Group is participating in a Medicare Shared Savings Program Accountable Care Organization. We have teamed up with Banner Health Network to provide you with high quality service and care at the right time in the right setting.

Meet Our Team

Krista Burns, NP-C
Krista Burns, NP-C

Krista Brancel has over 13 years experience as a registered nurse. Krista originally is fromTracy, New Brunswick, Canada – she moved to Georgia where she lived for 20 years and is now in Arizona! Prior to joining The Maxwell Group, Krista worked in various areas of nursing. Most of her nursing career was with Emergency Medicine. Krista worked at Southeast Georgia Health System, where she was an Emergency Room Nurse, Assistant Manager and then Interim Emergency Room Manager. She is a Certified Emergency Nurse (CEN) by Board ofCertification for Emergency Nursing. Krista also has experience working in the following areas:Hospice Nurse, Public Health Nurse, Flight Nurse, and also Travel Nursing. In 2016, she received Bachelor of Science in Nursing (BSN) from Grantham University, Lenexa, Kansas. Krista completed her Master’s of Science in Nursing with specialty in Family Nurse Practitioner (MSN-FNP) from South University, Savannah, Georgia in October 2018. She is certified as Family Nurse Practitioner with American Academy of Nurse Practitioners (AANP). During the Master’s program training she completed training in specialty areas such as: Pediatrics, Women’s Health, and Gerontology. Her training was here in Arizona at various practices across the East, and West Valley. She worked in various hospitals in Phoenix, Chandler, and in Gilbert. When not working, she is dedicated to spending time with family and exploring the world with travel when time permits.

UMESH NARAYANAN, M.D.
UMESH NARAYANAN, M.D.

Umesh Narayanan, M.D. is a native of Tampa, Florida. He completed his undergraduate studies earning a Bachelor of Sciences at the University of Florida in Gainesville, Florida (Go Gators!). He completed his medical school at Saba University School of Medicine in the Dutch Caribbean. He completed his Family Medicine Residency training at the University of North Dakota in Minot, North Dakota. He then went on and completed a Geriatrics Fellowship at the University of Arizona Geriatrics program here in Sun City, Arizona. He loved the area so much and has found permanent residence in Phoenix, Arizona. He is Board Certified in Family Medicine through the American Board of Family Medicine and is board eligible in Geriatric Medicine.
He is currently in a relationship with his girlfriend who is a Physician Assistant in Urology in the Phoenix area. In his spare time, he is an avid sports fan and enjoys watching and playing football, basketball, and baseball.He also enjoys hiking. Traveling the world and trying various cuisines is his passion.

CYNTHIA L. MEDINA, D.O.
CYNTHIA L. MEDINA, D.O.

Cynthia L. Medina, D.O. was born in Detroit, Michigan. She attended Michigan Technologic University and then graduated from Alma College with a Bachelor’s degree in Biochemistry. She received her Doctoral degree from University of New England College of Osteopathic Medicine, in Biddeford, Maine. She did her residency and internship in Family Medicine at Florida Hospital East Orlando. Dr. Medina is Board Certified in Family Medicine and has been in practice for 17 years.
She is married with two children. In her spare time she enjoys hiking and yoga.

Srinivasa R. Palnati, M.D.
Srinivasa R. Palnati, M.D.

Srinivasa R. Palnati, M.D. was born in Venice Itlay. He perused his medical degree at the college of DR Ambedkar Bangalore, graduating in 1988. He completed his Internal Medicine residency at St. Louis University Community Hospital, MO. Srinivasa R. Palnati has been in private practice for over 17 years in Sun City and has now joined The Maxwell Group Dr. Palnati is Board Certified with the American Board of Internal Medicine.

He is married and blessed with 3 children. In his leisure time, Dr. Palnati enjoys spending time with his family, traveling and he also actively participates in community services.

Randall L. Piette, M.D.
Randall L. Piette, M.D.

Born in West Allis, Wisconsin, Dr. Piette attended the University of Wisconsin – Milwaukee, graduating with a Bachelor’s Degree in Medical Science. He pursued his medical degree at the Medical College of Wisconsin, graduating in 1997. Dr. Piette completed his internship and residency program at Good Samaritan Regional Medical Center in Phoenix, Arizona. With a passion for geriatric medicine, he joined The Maxwell Group in 2000 where he has been in private practice for over 18 years. Additionally, he presently holds leadership positions on multiple medical committees and boards and is Board-Certified in Internal Medicine through the American Board of Internal Medicine.

He is married and blessed with two beautiful children. In his leisure time, Dr. Piette enjoys spending time with his family, traveling, hiking and golfing. Dr. Piette also loves music and serves as a drummer in his church’s praise band.

Mark C. Brown, M.D.
Mark C. Brown, M.D.

Mark C. Brown, M.D. was born in Peru of Missionary parents. He graduated from University Of Massachusetts at Amherst with a Degree in Biology. He attended Universidad Autonoma de Guadalajara and graduated with his medical degree. His Internal Medicine residency was with Yale Affiliated Community Hospital, which was Bridgeport Hospital in Bridgeport, CT. Mark C. Brown, M.D. has been in private practice for 28 years in the Sun City area. He currently serves as a member of The Flying Samaritans Mission Group and has since 1998.

He is married with six children, of which four are adopted. In his spare time he enjoys traveling, scuba diving and spending time with his family.

Michael M. Johnson, M.D.
Michael M. Johnson, M.D.

Michael Johnson, M.D. was born in Minnesota and raised in the Phoenix area. He graduated from University of Arizona with a Bachelor’s degree in Biology. He attended University of Arizona College of Medicine where he graduated with his medical degree. His Internal Medicine residency was with Good Samaritan Hospital in Phoenix, Arizona. Michael Johnson, M.D. is Board Certified in Internal Medicine and has been in private practice for 30 years in the Sun City area.

He is married with six children. In his spare time he enjoys playing golf and spending time with his family.

THOMAS J. MAXWELL III, M.D.
THOMAS J. MAXWELL III, M.D.

Thomas J. Maxwell III, M.D. is a native of Arizona. He graduated from the University of Arizona with a Bachelor of Science degree. He attended Universidad Autonoma de Guadalajara and graduated with his medical degree. His Internal Medicine residency was with St. Joseph’s Hospital and Medical Center, in Phoenix, Arizona. Upon completion of his residency, Dr. Maxwell joined his father’s practice in Sun City, AZ. Thomas J. Maxwell III, M.D. has been in private practice for 35 years in the Sun City area. Dr. Maxwell is Board Certified with the American Board of Internal Medicine.

He is married with two children and one adorable grandson. In his spare time he enjoys playing golf and spending time with his family.

We look forward to partnering with you in the management of your healthcare needs.
Please contact our office to receive the personalized attention you deserve. Our receptionists can be reached at (623) 933-8289

14678 N Del Webb Blvd,
Sun City AZ 85351.

Phone: (623) 933-8289
Fax:    (623) 933-2596