Physicians

All of our physicians are Board Certified in either Family Practice or Internal Medicine.


Ernest Jones, M.D.

Dr. Jones earned his Bachelor of Science in Chemistry at Brigham Young University and obtained his medical degree at University of Utah, Salt Lake City.  He completed his internship and residency at Silas B. Hayes Army Hospital, Fort Ord, California. 

Dr. Jones is an avid bicyclist.  He has participated in the Highway 1 100 mile ride the last few years.  His hobbies include gardening and photography.  He is married and has seven children and enjoys spending time with his family and grandchildren,  and traveling as time permits.

Cary Fitchmun, M.D.

Dr. Fitchmun graduated from University of California, Berkeley, and obtained his medical degree from University of California, Davis.  He is interested in  preventive medicine and dermatology.  His hobbies include hiking, surfing, and gardening.  He is married and has two children.

David Ruiz, M.D.

Dr. Ruiz earned his Bachelor of Science in Biology at the University of Redlands in California and obtained his medical degree from the University of California, Los Angeles.  He completed a three year Family Medicine Residency training at White Memorial Medical Center in Los Angeles as well.

He and his wife have lived on the Central Coast  for 15 years and are raising three boys.  His interests include singing and playing the guitar.  He also enjoys hiking, biking, fishing, and snow skiing.

As a board certified family physician, Dr. Ruiz provides high quality medical care with an emphasis on prevention.  He encourages patients to develop healthy lifestyles that nurture their mind, body, and spirit.

Roger Guthrie, M.D.

Roger Guthrie, M.D., attended Harvard University where he graduated Phi Beta Kappa and Magna Cum Laude in Chemistry.  He obtained  his medical degree from the Stanford University School of Medicine.  After graduation,  he did his Residency training in Family Medicine at the University of California, Irvine, where he later went on to a Fellowship and eventually joined the faculty as as Assistant Professor.  Doctor Guthrie completed the UCLA Acupuncture program and the American Heart Association Lipid Disorders Clinical Training Program.  He continues to maintain his ABFM Board Certification in Family Medicine.

In 1998 Doctor Guthrie moved to the Central Coast and joined the Arroyo Medical Group, Inc.  He has continued his interest in clinical research and currently heads Arroyo Medical Research in addition to maintaining a private practice.  Other projects have included on-location care in the Himalayan country of Bhutan and working with the Surgeon General/HHS emergency medical team in New Orleans following Hurricane Katrina in 2005.

Doctor Guthrie is married to local surgeon, Nancy Pawlik, M.D., and has three children.  His family is also hosting an exchange student from Bhutan.  Doctor Guthrie enjoys music, Eastern philosophy, and Asian Culture.

Dewey Sandberg, M.D.

Dewey Sandberg, M.D., graduated from Stanford University with a Bachelor of Science degree in Biology.  He attended medical school at University of California, Irvine.  He acquired specialty training in Family Practice at University of California, Davis Medical Center in Sacramento, where he was Chief Resident during his final year in that program.

In the years since then, he has obtained and continued to maintain American Board of Family Medicine certification in the specialty.  He moved to the Central Coast in 1992, and joined Arroyo Medical Group in 2004.

He is married and has two teenage sons.  He enjoys gardening and outdoor sports.  He sings in his church choir and in a small a capella group.








Primary Care, Arroyo Medical Group, and You

With the rapid changes in health care delivery, health insurance, and technological advances in the USA, the concept of a doctor who oversees your health care is something being lost.  Arroyo Medical Group was formed to provide patients with up-to-date medical advice, preventive care, continuity of care, and coordination of patients' various medical needs.  The doctors at Arroyo Medical Group are not "general practitioners", but rather Specialty Board Certified in either Family Practice or Internal Medicine with at least three extra years of training and periodic re-certification in treating the whole patient.

Patients sometimes wonder why they need a "Primary Care" doctor if they are seeing other Specialists.  The answer is simple: the Specialist takes care of his or her area of expertise, but not the whole patient.  Many Specialists will not see a patient unless they also have a Primary Care doctor---they do not want just part of the patient's health care issues addressed.

Patients sometimes ask why they need to see their Primary Care doctor if they are feeling fine.  The major reason is that serious diseases such as hypertension, cancers, high cholesterol, diabetes, and many others often start with no symptoms at all.  Immunization updates and life-style changes can also be addressed at these "well visits."  Like most problems in life, medical issues are best handled by prevention or early treatment.

At Arroyo Medical Group, we believe that excellent medical care can only be delivered if periodic assessments of your condition are done.  However, we also understand that some patients may have reasons why they just wish to have episodic care---seeing a doctor only when something goes wrong.  We respect those patients' right to choose their plan of care, but Arroyo Medical Group does not follow patients for episodic care.  As per national guidelines for preventive care, patients over 40 years old should expect to be seen at least once per year for a preventive examination (also known as a "physical") to address these needs.  Those with chronic medical problems will generally need to be seen more often as determined by their doctor.

Arroyo Medical Group's mission is to maximize your health and decrease your long-term health care expenditures.  We look forward to working together with you on this.