Menu

Nextera Healthcare – Front Range

Nextera Healthcare’s direct primary care membership for individuals, families and businesses provides a convenient, cost-effective solution for those looking to get more out of their primary care coverage.

Nextera Healthcare providers offer year-round, comprehensive adult and family primary care services, including but not limited to:

  • Acute care and chronic disease management
  • Allergy evaluation and management
  • Dermatology
  • Mental health, including treatment for depression, anxiety and other mood disorders
  • School, sports and workplace physicals
  • Sleep hygiene assessments and support
  • Stress management
  • Treatment of sprains, lacerations and broken bones
  • Weight management and health risk assessment
  • Women’s health
  • Well checks for infants and children
  • Preventive health care
  • Same-day appointments or next-day appointments based on medical need.
    Please call 911 in the event of a medical emergency.

In addition to the services above, Nextera Healthcare membership offers patients:

  • After-hours care for more urgent medical needs (non-life threatening emergencies)
  • Remote or virtual access to physicians via email or phone if you are busy or traveling
  • Deeply discounted imaging and laboratory services

* The list of medical services offered may be subject to change

Our Providers

Carrie Wilcox, MD

Longmont, Frederick
Read Bio
close

Carrie Wilcox, MD

Longmont, Frederick

Carrie Wilcox, MD, is Board Certified in Family Medicine. She graduated from the University of Nebraska-Lincoln with a degree in Spanish before attending medical school at the University of Nebraska Medical Center. Growing up in small-town Nebraska inspired her to pursue training in Family Medicine, where the scope of practice isn’t limited to just one area of health. She completed residency at Rose Medical Center in Denver, Colorado, where she served as chief resident during her final year of residency. The appeal of Colorado’s active lifestyle made an impression during that time, and after working a year of locum tenens in New Zealand, she moved back to practice in Longmont, Colorado. By chance, she fell into the Direct Primary Care model of healthcare with Nextera Healthcare and has enjoyed how this practice model has allowed her to serve her patients in a more accessible way.

Dr. Wilcox enjoys seeing all ages in the office and likes to manage chronic medical conditions as well as work on preventive health measures. In her free time, she enjoys cooking and baking, which she balances by seeking out new hiking trails and fitness classes. With any significant time off, you will most likely find her (or lose her) in an international travel destination.

Clint Flanagan, MD

Longmont, Boulder, Greeley, Steamboat
Read Bio
close

Clint Flanagan, MD

Longmont, Boulder, Greeley, Steamboat

Clint Flanagan, MD, is the founder and CEO of Nextera Healthcare and North Vista Medical Center. Nextera Healthcare is Colorado’s first Direct Primary Care (DPC) program, established in 2009. Nextera Healthcare members are assessed an affordable monthly membership fee for unlimited office visits and virtual consultations with physicians at North Vista Medical Center and affiliate medical practices. Nextera Healthcare was selected by FierceHealthcare out of hundreds of healthcare companies across the world as one of the 2019 Fierce 15 companies and has been designated as one of the most promising healthcare companies in the industry. Nextera Healthcare has established a community of nearly 80 clinics throughout Colorado, Maryland, Michigan, Nebraska, Iowa, Florida, Virginia, Wyoming, and the Washington DC area. North Vista Medical Center, voted Best Business by the Longmont Times-Call Reader’s Choice Awards, is a primary care hybrid practice with 6 locations in northern Colorado.

Board-certified in Family Medicine, a diplomat of the American Board of Family Medicine and an actively practicing physician, Dr. Flanagan has been a fixture in Colorado healthcare for over 20 years, was named to the Top 20 Who’s Who in Direct Primary Care in the US, and was invited in 2019 to be a founding committee member of the Direct Primary Care Mastermind Initiative focusing on serving employers.

Dr. Flanagan graduated from the University of Nebraska Medical Center and completed his residency at St. Mary’s Family Medicine Program in Grand Junction, CO. In addition to working as a Family Medicine physician, he has fifteen years of experience as an emergency physician working in many underserved communities throughout Colorado and as far away as Iraq where he served as an officer in the Army Medical Corps.

An accomplished healthcare visionary, Dr. Flanagan regularly contributes to policy discussions at the state and federal level to ensure physicians and healthcare providers have ample opportunity to deliver high quality, affordable and accessible care to families and businesses. He has testified on behalf of DPC and has been directly involved in DPC legislation that passed unanimously in Colorado and Nebraska. He sits on the Steering Committee of the National Direct Primary Care Coalition and during their June 2014 Washington DC conference, he was invited to discuss DPC at the White House. He has also been invited to present his insights on the emergence and implementation of DPC to a wide range of groups, including medical students, residents, and professional associations. His free time is spent enjoying his family and outdoor fitness pursuits in the Colorado Rockies.

Joseph Turner, MD

Longmont, Frederick
Read Bio
close

Joseph Turner, MD

Longmont, Frederick

Joseph Turner, MD, is Board Certified in Internal Medicine and has more than twelve years of experience as an internist, treating all manner of adult illness. He completed medical school at the University of Missouri and then went on to internship and residency at the University of North Carolina-Chapel Hill. He is a member of both the American Board of Internal Medicine and the American College of Physicians.

He has a special interest in acute medical illness — especially heart failure and infectious diseases.  He also has special interests in medical education, having instructed medical residents and nurse practitioner students at his most recent affiliated hospital, St. Anthony’s Hospital, as well as medical ethics and health systems improvements, having served as the co-chairman of the medical ethics committee at North Suburban Medical Center.

He and his wife, along with their two sons, enjoy Colorado weather and outdoor activities such as hiking, snowshoeing, and hockey. Dr. Turner can also be found listening to music of all types, pretending he is still a radio DJ!

Katherine Walker, MD

Longmont, Boulder
Read Bio
close

Katherine Walker, MD

Longmont, Boulder

Katherine Walker, MD, is a Board Certified Family Medicine Physician with over 20 years of clinical experience.  She is also an active member of American Academy of Family Physicians.  Dr. Walker graduated from the University of Louisville School of Medicine (Louisville, Kentucky is her hometown).  And, she attended Northwestern University as an undergraduate with a major in Latin American studies.  She is fluent in Spanish.  Dr. Walker enjoys treating patients of all ages with a variety of conditions.  Special areas of interest are the treatment of anxiety and depression.  Dr. Walker strives to provide compassionate, personalized care.  She has been told by her patients that they really feel that she listens to their concerns and provides valuable feedback.  Many of her patients have said that she has an “excellent bedside manner.”  For specific patient reviews, please Google “Dr. Katherine Walker Health Grades.”  Dr. Walker has practiced in the Longmont area since 2003.  She truly appreciates and values developing long-standing patient relationships.  Caring for the whole family, and helping patients to achieve mutual health care goals is a priority for her.  

Dr. Walker also teaches at the St. Anthony North Family Medicine Residency.  There she supervises physicians in training.  This rewarding work requires her to stay current with the latest evidence-based medicine recommendations.

In her spare time, Dr. Walker enjoys spending time with her husband and two dogs.  She is an avid skier and stays active with cycling and running.  Another passion of hers is leading medical mission trips to underserved areas abroad.  She has been to Central and South America numerous times.

Natasha Deming, MD

Longmont, Frederick
Read Bio
close

Natasha Deming, MD

Longmont, Frederick

Dr. Deming is a Board-Certified Family Medicine Physician who is excited to join the Nextera team! She received her Undergraduate and Medical degrees at the University of Florida. She then became a Colorado transplant to complete her residency at Rose Family Medicine Residency in Denver in 2016.

 

Dr. Deming has always loved the “cradle to grave” scope of Family Medicine with the ability to care for people of all ages. She has been passionate about serving her patients in a collaborative and compassionate manner. After her residency training, she served in the rural farming community of Yuma, Colorado for six years. She provided primary care, inpatient and emergency medicine to the community. This opportunity challenged Dr. Deming to serve her patients in creative ways to provide them the care that they needed with limited resources to specialty care and other support. She gained a great deal of knowledge about medicine and herself as this experience shaped her practice as a physician.

 

Her clinical practice focuses on broad-spectrum Family Medicine including preventative medicine, care of chronic conditions, weight loss management, pediatrics, women’s health, and urgent care needs. She especially enjoys the opportunity to form open and trusting relationships with her patients and finds this to be the most gratifying aspect of practicing medicine. She performs a variety of procedures including long-term birth control insertion and removal, fracture splinting/casting, joint injections, minor skin procedures, and others.

 

In her spare time, you can find her playing with plants, paint and yarn; cooking, fishing, traveling, reading, practicing martial arts, and spending time in the beautiful Colorado outdoors.

Tim Nagel, MD

Longmont, Frederick
Read Bio
close

Tim Nagel, MD

Longmont, Frederick

Tim Nagel, MD, is Board Certified in Family Medicine and a member of the American Academy of Family Physicians. He attended medical school at the University of Iowa and completed his residency in Family Medicine and has been in practice for 29 years. Dr. Nagel takes special interest in managing chronic diseases and helping patients develop a healthy lifestyle. He maintains certification in ACLS, ATLS, BLS and PALS and has over 20 years experience covering the ER, doing inpatient hospital care and obstetrics.