Thurston Medical Clinic Building

Our Family
Welcomes Your Family

We are a close-knit group of doctors in Springfield, Oregon who believe in the benefits of caring for individuals and families, from infancy through the golden years. We care about each other and we care deeply for our patients and their well-being. We look forward to seeing you.

As a primary care office, we are essential and will be open as usual during the shutdown. We also offer telehealth and car visits for your convenience for most appointment types. For more information, feel free to contact us.


Monday 7am-7pm
Tuesday-Thursday 7am-6pm
Friday 7am-5pm
1st Saturday of month 8am-5pm
3rd Saturday of month 9am-3pm
Closed 11/26, 11/27 and 12/05


Dr. Ames, MD

Stephan Ames, MD

Dr. Ames earned his medical degree in 1987 from Oregon Health Sciences University, here he was a member of Alpha Omega Alpha Honor Society. He has a special interest in newborns, children, young adults, dermatology, asthma patients and preventive medicine. He has a special rapport with our elderly patients.

Cary Bybee, MD

Cary Bybee, MD

Dr. Cary Bybee joined Thurston Medical Clinic after many years of working in multiple medical settings across the United States. Board-certified by the American Board of Family Medicine, Dr. Bybee graduated from the International American University College of Medicine, St. Lucia, in 2011. His goal is to educate and encourage patients, so they feel fully informed and empowered to make decisions about their health.

Mallory Crownover DNP, FNP-BC

Mallory Crownover DNP, FNP-BC

Mallory received her Doctorate of Nursing Practice degree from the University of Florida. Before joining Thurston Medical Clinic, Mallory worked for the Florida Department of Health. As a Nurse Practitioner, Mallory offers patient centered care with emphasis on healthy lifestyles and illness prevention.

Dr. Kathleen Jackson, MD

Kathleen Jackson, MD

Dr. Jackson earned her medical degree in 1988 from the University of Kentucky and has practiced Internal Medicine in Lane County since 1991. Her special interests include high blood pressure that is difficult to control, congestive heart failure and a broad spectrum of adult health conditions.

Dr. Michelle Kaplan, MD

Michelle Kaplan, MD

Dr. Kaplan earned her medical degree in 2001 from the University of Southern California, Los Angeles. Her areas of interest include pediatrics and women’s health. She also has a special interest in asthma care. Dr. Kaplan is fluent in Spanish.



Our family looks forward to serving you.

From certified medical assistants to lab specialists, we hire the best and the brightest, so that you and your family can benefit from the very best care. Whether you’re seeking to become a new patient or a new member of our staff, we welcome you to contact us.



Practice Administrator




Our schedules are always busy, however, if you call and you feel you should be seen prior to the earliest available appointment, let the receptionist know. We generally have same day appointments. Remember to call to schedule your annual physical far enough in advance to accommodate your needs.

Prescription Refills

In the event you need to refill a prescription, call your pharmacy even if you have no more refills left on your prescription. PLEASE ALLOW 24-48 HOURS FOR AN APPROVAL. Also, please request your prescription refills Monday – Friday, as weekend prescriptions are usually not considered an emergency.

NO CONTROLLED SUBSTANCE prescriptions will be filled after hours and on weekends.

Test Results

It generally takes several days for non-emergency test results to return to the office. We will contact you at our earliest availability once your doctor has reviewed them. Labs are processed through Interpath Labs unless otherwise advised.

Medical Questions

In the event you have a medical question or concern, call our office and request your doctor’s assistant to call you. The receptionist will need to take a brief detailed message. Our assistants make return phone calls in between the scheduled patients (when possible), and generally prior to their lunch hour or going home for the evening. Remember, they are assisting the physician with regularly scheduled patients and will return your call when possible. If needed, leave the best time to call you back with your message. For non-emergency questions you can send a message through the Patient Portal to the doctor’s assistant.

Evenings and Weekends

One of our physicians is on call 24 hours a day. If you have an urgent matter you feel cannot wait until the next day; CALL OUR OFFICE TELEPHONE NUMBER 541-746-1166. Follow the recorded instructions. An operator will come on the line to take a message and page the on-call doctor. GENERALLY the doctor will get back to you within the hour and will respond to all urgent telephone calls. If your question is not an urgent matter, please wait until the following day when one of our providers or their medical assistant can help you.

Billing Questions

We encourage you to speak with our Patient Account Specialist if you have any billing questions or need to make payment arrangements. Call the business office at 5‌41-744-7305. If you have specific questions regarding your insurance coverage refer to your insurance member handbook or call the number provided on your insurance card.


If you are experiencing a medical emergency call 911.



Some of the insurances that we are participating with:

Aetna Commercial and Medicare Advantage
First Choice
HealthNet Commercial and Medicare Advantage
PacificSource Commercial and Medicare Advantage
Providence Commercial and Medicare Advantage
Regence BlueCross BlueShield Commercial and Medicare Advantage
TriCare West
United Healthcare/AARP  Commercial and Medicare Advantage



147 South 52nd Place Springfield, OR 97478 (map)





Q-Corp Compare Your Care Doctor’s Office Scores


I am interested in becoming a new patient: