About Us

Our Core Focus
Assessing and preventing chronic disease is Lifesigns' core focus. We make every effort to identify emerging health risks and protect future health. Our testing is thorough and our effort to prevent catastrophic events and to educate is our number one priority.

Peace of Mind

Lifesigns takes pride in new state-of-the-art equipment and quick adaptation to patient needs. Our providers review and discuss their findings and outline a health strategy if needed. Patients receive a personalized summary, including a thorough but easy-to-understand overview of each test and the provider's recommendations.

Many patients leave our office with peace of mind that their health indicators are typical. Other patients are grateful their visit showed early signs of emerging or severe health risks that our team could address without delay.

The Clinic

Established in 1992, Lifesigns is a patient-centered facility dedicated to comprehensive physical exams and critical follow-up care. For more than 31 years, Lifesigns has provided over 400,000 health and wellness exams to patients in the Memphis community.

We provide a comfortable environment with aesthetic features that include a waterfall centerpiece and art throughout the clinic. For patients fasting, we offer an array of snacks, fruit, and beverages.

The Prevention Group

Under the umbrella of The Prevention Group ("TPG"), Lifesigns has inspired two sister companies, HealthyHere and MealMD. HealthyHere is a mobile version of Lifesigns performing ultrasound-guided physicals at the employer's worksite. MealMD is a physician designed weight loss program which delivers chef-prepared meals and an evidence-based curriculum. TPG also manages wellness incentives and on-site clinics for companies wanting a full-time worksite clinic.

Click Here to learn about HealthyHere
Click Here to learn about MealMD

Lifesigns Definition of Comprehensive

Our services you may not find at a typical doctor's office


We take pride in having state-of-the-art equipment, including a new 3D/tomo mammography upgraded Ultrasound machines.

  • Thyroid Ultrasound
  • Abdominal Ultrasound
  • Mammography
  • Gynecological Exam
  • General Health Panel
  • Prostate-Specific Antigen

Heart & Lung

Multiple tests are preformed to make sure your heart and lungs are healthy and working properly. If we find a concerning result, we send a referral to a cardiologist.

  • Treadmill Stress Test
  • Resting EKG
  • Chest X-ray
  • Carotid Arteries Ultrasound
  • Pulmonary Function


With the multitude of comprehensive tests performed in one visit, physicals can take 2-3 hours to complete.

  • Hearing Exam
  • DEXA Scan
  • Abdominal Organ Ultrasound
  • Various Lab Panels
  • Hemoglobin A1c
  • STD/HIV (on request)

Meet the Providers

Felix Caldwell, MD
Dr. Caldwell is a native Memphian and graduated Cum Laude from Vanderbilt University and received his medical degree from The University of Tennessee Health Science - Chattanooga. Dr. Caldwell is Board Certified in Internal Medicine and a fellow in the American College of Physicians. Following medical school, he served as Lt. Commander in the United States Naval Reserve with an Honorable Discharge. He enjoys gardening, hiking, going to movies, taking care of his three dogs and aquarium. Dr. Caldwell has practiced medicine for almost 40 years and has worked for Lifesigns since 2006.
Holly Fuller, NP
Holly is originally from North Carolina and received her M.S. in Nursing from Graceland University in Iowa. Before Lifesigns, Holly worked in urgent care, emergency medicine, and cardiology. She enjoys getting to know her patients and building a relationship with them. Her hobbies include volunteering at the Humane Society and the Streetdog Foundation, traveling, and spending time with her daughter, Claire. Holly has worked for Lifesigns since 2017.
Lauren Cunningham, NP
Lauren is a graduate of the University of Tennessee, Knoxville, where she obtained her Bachelor of Science in Nursing. She then moved back to Memphis to marry her high school sweetheart and started working as an RN at Le Bonheur Children's hospital. Since becoming an NP, Lauren has worked in a primary care setting. In her spare time, she enjoys running, playing tennis, cheering on the Vols, and spending time with her husband and their two children. Lauren has worked at Lifesigns since 2019.
Margaret Mitchell, DNP, FNP-C
A native Memphian, Maggie graduated Summa Cum Laude from the University of Memphis and earned her Doctorate of Nursing Practice from the University of Tennessee Health Science Center. As a nurse, she worked in primary care with Le Bonheur Pediatrics and following her NP program, she worked in Nashville as a Family Nurse Practitioner. Maggie has served as a Tennessee Promise Mentor and on the UTHSC Honor Council; she has participated in the Nursing in Diverse Cultures program in Ecuador and is a member of Sigma Theta Tau Honor Society of Nursing. She lives in east Memphis with her husband, David, their daughter, Elizabeth, and two pups, Ruthie, and Gus.

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1727 Kirby Parkway,
Suite 100
Memphis, TN 38120

Contact Information

Phone: 901-685-5520
Fax: 901-685-0782
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