Logo, Rocky Mountain Family Practice, Medical Care in Longmont, CO


Call Today:
(303) 772-6244
    Fax - 303-702-1623
205 South Main Street, Suite B
Longmont, CO 80501-1714

Hours of Operation Monday–Wednesday: 7:30 a.m.–6:00 p.m. | Thurs/Friday: 7:30 a.m.–5:00 p.m. | Saturday: 9:00 a.m.–12:00 p.m.

Our Providers

James M. Fretwell, MS,MD,FAAFP Diplomate of the American Board of Clinical Lipidology.

Dr. Fretwell has been practicing family medicine in Colorado since 1997. His practice focuses on primary care, preventative care, and Cholesterol Disorders. 
After earning a Bachelor's degree in Biology at Walsh College in Canton, Ohio, Dr. Fretwell attended The University of Akron and received a Master's degree in Biology before continuing on to medical school. He received his Doctoral degree in Medicine in 1994 from The Northeastern Ohio Universities College of Medicine. Dr. Fretwell completed his residency in Family Medicine at Barberton Citizens Hospital in Barberton, Ohio. 

James M. Fretwell, M.D., Physician, Family Doctor in Longmont, CO
Dr. Fretwell is a member of the Colorado Medical Society, and Board Certified with the American Board of Family Medicine. He serves as an Associate Clinical Professor with The University of Colorado School of Medicine and is on the Medical Staff at Longmont United Hospital. He is a Certified Lipidologist, and Diplomate of the American Board of Clinical Lipidology. He is a Fellow of the American Academy of Family Physicians.
Brian R. Hughes, D.O. , Family Doctor in Longmont, CO

Brian R. Hughes, D.O. 

After completing his residency in 2003 at Botsford General Hospital in Farmington Hills, Michigan, Dr. Hughes began his private medical practice at Rocky Mountain Family Practice. 
A graduate of Michigan State University with a Bachelor of Science degree in Zoology, Dr. Hughes attended Midwestern University Chicago College of Osteopathic Medicine, graduating in 2000.

Dr. Hughes is a member of the Colorado Medical Association, the American Osteopathic Association, and has been Board Certified with the American Osteopathic Board of Family Physicians since 2003.
In addition to his practice in Longmont, Dr. Hughes has been the Medical Director at Lifecare Center of Longmont since May 2005.  He is on staff at Longmont United Hospital. 

Paul L. Cooper, M.D.

Dr. Paul Cooper joined Rocky Mountain Family Practice in July 2000 after completing his three year residency at Sparrow Hospital/University of Michigan Family Practice Residency Program in Lansing.  He has been board-certified with the American Board of Family Practice since 2000.  
He began his medical training at St. Georges University School of Medicine, Grenada, West Indies in 1993 and graduating in 1997.  His third and fourth year medical training rotations were completed through the University of California in San Francisco.

Paul L. Cooper, M.D. , Family Doctor in Longmont, CO
Dr. Cooper is a member of the Boulder County Medical Society and the American Medical Association.  He is on staff at Longmont United Hospital.
Ammie E. Christiansen, D.O., Family Doctor in Longmont, CO

Ammie E. Christiansen, D.O.

Dr. Christiansen joined us in the fall of 2006, from San Antonio, Texas, where she worked as a staff physician, at the University Hospital Family Practice Clinic since 2003. 
Dr. Christiansen grew up in the Lyons and received her undergraduate degree from the University of Colorado, Boulder majoring in psychology.  She attended Kirksville College of Osteopathic Medicine in Missouri and was awarded the degree of Doctor of Osteopathy in 2000.  She completed her residency in Family Practice medicine in 2003 at Christus Santa Rosa Family Practice Residency Program also in San Antonio, Texas.  Her last year in the program included working as chief resident.

Dr. Christiansen has been board certified since 2003 by the American Board of Family Practice and is on staff at Longmont United Hospital.

Eric Mast, D.O.

Dr Mast earned his Bachelor of Arts from The University of Colorado in Boulder and then his Doctorate in Osteopathic Medicine from Rocky Vista College of Osteopathic Medicine in Parker , CO. He completed his Residency in Family Medicine at the Northern Colorado Family Medicine Residency Program in Greeley, CO. He is a Board Certified member of the American Academy of Family Physicians.

Eric Mast, D.O.
Diane P. Smith, APN/CNP ,  Nurse in Longmont, CO

Diane P. Smith, APN/CNP

With post-masters education in nursing and advanced clinical training, Diane, as a Family Practice Nurse Practitioner, provides a wide range of primary and acute health care services to individuals of all ages including:

  • Taking health histories and performing comprehensive physical examinations.
  • Diagnosing and treating both acute and chronic problems.
  • Referring patients to other health professionals as needed.  
  • Prescribing and managing medications and other therapies.
  • Providing health teaching and supportive counseling.
  • Ordering and interpreting laboratory results and X-rays.

As a nurse practitioner for 10 years, Diane has focused on patients' conditions as well as the effects of illness on the lives of her patients and their families. Making prevention, wellness and patient education her priorities, she encourages patients to participate in decisions central to their care. Prior to being a NP, Diane managed a Neuroscience/Orthopedic/Rehab hospital unit and was an assistant professor of Nursing.

Diane received her Bachelor of Science degree in nursing from the College of St. Teresa in Winona, Minnesota, a Master's of Science degree in Nursing from Loyola University, Chicago, Illinois, and a Nurse Practitioner Post-Master's Certificate in Family Practice from Northern Illinois University. Having raised five children, she lives with her husband in Longmont.