• Welcome to the HealthCare Associates of McKinney
  •     Medicine At Its Best

  •     Continuity of Patient Care

  •     With our Patients at Each Step

  •     Strong Physician Leadership

  •     On-site COLA
           Accredited Laboratory

  •     On-site Pharmacy
    for Patient Convenience

  •     Manage Your healthy lifestyle

Healthcare Associates of McKinney

Welcome to Healthcare Associates of McKinney where we offer care for the whole family from ages 3 and up. Our team is here to help you be as healthy as possible in an environment that fosters trust, compassion and comfort. Because we are Family Medicine Physicians, we can handle a broad range of needs in our McKinney office ranging from treating an aching back and skin conditions or the flu to managing cholesterol levels and diabetes. We also perform outpatient minor surgeries for dermatologic conditions and joint injections for select orthopedic complaints.  We can provide well visits, sick visits, school physicals, and vaccinations. We offer on-site x-ray, lab and allergy testing services. When you are well, we strive to keep you that way by focusing on preventive health issues such as cancer screenings, diabetes screenings, immunizations, nutrition, and by finding ways to empower you through health education.

Conveniently located on the border of Frisco and McKinney, near Craig Ranch, our office is at 8080 State Hwy 121, Suite 210, McKinney, Texas 75070 Contact US.  We are open from 8am to 5pm.  The office stays open during lunch.  We are pleased to offer same-day appointments, when available. 

Our team of fantastic providers cares for patients in our McKinney office. Dr. Wallace Sarver has been serving patients in McKinney since 2008 and we are pleased to have him as part of our practice. Dr. Edwin Taylor recently joined our practice after 15 years of service in the Navy and 4 years in private practice in Pensacola, Florida. While new to McKinney, Dr. Taylor is not new to medicine and he brings a wealth of experience to the practice. Dr. Christopher Lawrence has been in family practice in McKinney for the past 18 years and has been an active community member for years, participating in many McKinney ISD, community, cultural and volunteer experiences. Dr. David Candelario is also a long-time resident of McKinney with strong ties to this community where he has lived since 1988. He also holds an engineering degree which he earned prior to attending medical school. Our Physician’s Assistants, Lauren Dethelfs and Angela Jorrey, work with our doctors to provide excellent patient care. They have been caring for patients in McKinney since 2013 and 2005 respectively. Both are exceptionally skilled and enjoy all aspects of family practice.

We accept all major insurance plans, including Aetna, Blue Cross/Blue Shield, Baylor, Scott & White Quality Alliance, Cigna, Humana, Medicare, Secure Horizons, and United Healthcare.  Our full list Insurance Information is long and changes regularly, so don't hesitate to call our office to see if we accept your health plan

We would be honored to care for your family.  Please call us at (972) 268-9383 to schedule your appointment today.  And, of course, if you are calling about a medical emergency, please call 911.

  • Meet Dr. Sarver
  • Meet Dr. Taylor
  • Meet Lauren, PA-C
  • Meet Dr. Candelario
  • Meet Dr. Lawrence
  • Meet Angela, PA-C

Dr. Wallace Sarver received his Doctor of Osteopathic Medicine degree from Kirksville College of Osteopathic Medicine in Kirksville, Missouri. He originally trained as an Obstetrics & Gynecology resident at Michigan State University’s Detroit Riverview Hospital in Detroit, Michigan before transferring to a Family Medicine Residency at West Virginia School of Medicine, Selby General Hospital in Marietta, Georgia. He is board certified by the American Osteopathic Board of Family Practice. Dr. Sarver enjoys taking care of patients of all ages and has special interests in Preventive Care and Sports Medicine.

He and his wife, Michelle, live in Allen with their two sons. When not caring for patients, Dr. Sarver enjoys outdoor activities and the arts. Read More

Dr. Taylor completed his Bachelor of Arts degree in Biology at the University of New Orleans, New Orleans, Louisiana after serving 8 years enlisted in the United States Navy. He attended medical school at the Louisiana State University School of Health Sciences in Shreveport, Louisiana under the auspices of the Navy Health Professions Scholarship Program. He completed his internship in Family Practice at the Naval Hospital in Pensacola, Florida. After serving a tour as a general medical officer onboard an overseas based ship, he returned to the Naval Hospital in Pensacola and completed his residency in Family Practice. He proceeded to serve 15 years in the Navy after an overseas tour in Okinawa, Japan and various subsequent deployments. He is a veteran of the war in Iraq having served a 13 month tour in Fallujah, Iraq where he was involved in combat operations. He is board certified by the American Board of Family Medicine and is fully bilingual and bicultural in Spanish.

When asked how Dr. Taylor felt about joining Healthcare Associates of McKinney, he said this, “Nothing is more humbling than being entrusted with the health and wellbeing of you and your family. I joined Healthcare Associates with only one purpose in mind, to deliver the most comprehensive, quality medical care that you and your family deserve. Just as I served and cared for our military heroes and their families for 15 years, I vow to care for you and your loved ones with the utmost degree of respect and compassion. Thank you for choosing us for your healthcare needs and always remember that our patients come first.” Read More

A native of Southlake, Texas Lauren Dethlefs, PA-C received her Bachelor of Science from Texas A&M University in College Station and subsequently graduated Summa Cum Laude with a Master of Physician Assistant Studies from the University of Texas Medical Branch, Galveston. She is certified by the Texas State Board of Physician Assistant Examiners and the National Commission on Certification of Physician Assistants. She’s a member of the Texas Academy of Physician Assistants and American Academy of Physician Assistants.

Lauren worked in the emergency room and urgent care setting prior to moving to family practice and has been in family practice since 2013. She enjoys exploring the natural side of medicine as well as staying up to date with traditional practices and working to integrate the two. She has a passion for wellness and preventive care for all ages as well as managing chronic and urgent care needs. Lauren promises to put you, as the patient, first and work together with you to accomplish your healthcare goals.

She and her husband have two awesome kids, Ethan and Allison. She spends most of her free time chasing after them and their two large dogs, Ruby and Cody. Lauren loves being outside gardening, traveling and enjoying the Texas sun with family and friends. Read More

David W. Candelario, DO earned a Bachelor of Science in Electronics Engineering Technology at DeVry Institute of Technology in Irving, Texas. Dr. Candelario then worked for 17 years as a software engineer at various local telecommunications firms including DSC Communications, Nortel Networks and INET Technologies. During the 2002 downturn in the technology industry, he left telecommunications and entered the University of North Texas Health Science Center in Fort Worth where he earned a Doctor of Osteopathic Medicine degree. Dr. Candelario completed his Family Medicine residency at UT Southwestern Medical Center in Dallas. He is board certified in Family Medicine by the American Board of Family Medicine and is a member of the Texas Medical Association. Read More

N. Christopher Lawrence, MD has been in family practice in McKinney for the past 18 years. He practices traditional family medicine, caring for babies to elderly patients. His practice style includes an emphasis on wellness and disease prevention through hormone management and supplementation. He received his Doctor of Medicine from University of Texas Health Science Center at San Antonio and then completed a Family Practice Residency at Cedar Rapids Medical Education Foundation in Cedar Rapids, Iowa. Dr. Lawrence is a Diplomat of the American Board of Family Medicine. He has won numerous awards including Living Magazine’s Best Family Practice Doctor/Group and Best Bio-Identical Hormone Replacement Center and D Magazine’s Best Doctors in Collin County. Read More

Angela M. Jorrey, MPAS, PAC graduated from the Texas Tech University Health Sciences Center Physician Assistant Program in Midland, Texas in 2005. Following graduation, Angela worked in the allergy and asthma field for two years and has spent the last nine years in family medicine. Angela enjoys all aspects of family practice, but especially preventive care. She has special interests in the field of diabetes and women's healthcare. Angela has been working with Dr. Lawrence to specialize in wellness and disease prevention through hormone management and supplementation. She is certified by the National Commission on Certification of Physician Assistants, a member of the American Academy of Physician Assistants, and the Texas Academy of Physician Assistants. Read More

Get In Touch


  • Phone :

    McKinney Office : 972-268-9383

    Fax : 972-870-4925

  • Email :

    Office : Info@healthcareassociates.com

  • Address :
    8080 State Hwy 121,
    Suite 210
    McKinney, Texas 75070
Recent News
  • New Patient Portal

    Healthcare Associates is happy to announce a new service to our patients. The Patient Portal will allow you to access a portion of your medical record, see your test results, and communicate with the office staff.

    launch now
  • New Providers

    We would like to introduce our newest provider, Stacy Moretta, PA-C.

    read more
  • New On-Site Lab Services

    On-site laboratory offers increased convenience and quicker results.

    read more
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