NW Portland

Mon-Fri: 8am-8pm
Sat-Sun: 8am-8pm

NE Portland

Mon-Fri: 8am-8pm
Sat-Sun: 8am-8pm

Lake Oswego

Mon-Fri: 8am-8pm
Sat-Sun: 9am-6pm

(503) 305-6262

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Meet Our Team

Leadership Team

Dr. Lou Perretta

Dr. Lou Perretta

Medical Director (NW Portland & Lake Oswego)

Dr. Perretta is an experienced Emergency Physician who has seen the value of Urgent Care centers in helping patients with acute medical problems get care quickly and efficiently. He believes Doctors Express, in particular, is able to provide this care in a calm and caring setting. More importantly this care is comprehensive – with onsite labs and X-rays – yet only costs a fraction of the expense that a busy hospital Emergency Department will charge.

As Medical Director he oversees all of the daily operations of the centers in Portland. Dr. Perretta has been practicing Emergency Medicine in the Portland medical community for the past 25 years. He has worked at the Legacy Good Samaritan Hospital as well as the Kaiser Sunnyside hospital. Dr. Perretta graduated from the University of Rochester School of Medicine and completed his residency at the University of Illinois in Chicago.

He has served as the Medical Director of EMS for Columbia County in Oregon and currently serves as the Medical Director of the EMT program at Clackamas Community College. 

Carye McKee

Carye McKee

Operations Manager

Carye McKee manages all operations of Doctors Express Portland. Carye started in healthcare working in the business office 25 years ago and went on to manage clinics, and start several clinical programs in the Providence system.  She grew up in Forest Grove, graduated from Reed College with degrees in Philosophy and Religion. Carye completed her MBA from Stanford University School of Business in 2005 and has continued her focus on clinic operations and staff training and development.  When not working, Carye spends time with her husband and their extended families – big sports fans enjoying football, hockey and college basketball.  She also designs and makes greeting cards, enjoys baking and entertaining.  

Providers

Dr. Steve Acosta

Dr. Steve Acosta

Dr. Acosta graduated from the UCLA School of Medicine in 1976 and did a Family Practice Residency at the UC Irvine Medical Center. He is Board Certified in Emergency Medicine. In California he practiced in a variety of environments – from Emergency Medicine at various hospital groups to owning his own practice to Urgent Care and Occupational Medicine. He moved to Oregon in 1996 and has worked at the ER departments of Kaiser and the VA. His last stint at the VA was being the Medical Director of their “Program at Home” where he helped the VA reduce significant costs through home visits for patient care. 

Dr. Tracey Columb

Dr. Tracey Columb

Dr. Columb is a graduate of Indiana University School of Medicine. She is Board Certified in Family Medicine with an interest in women’s and children’s health, sports medicine, travel medicine and underserved populations. Dr. Columb has experience in several different settings providing comprehensive medical services to the entire family. She spent the last 3 years as a  family physician providing inpatient, outpatient and emergency care in Sitka, Alaska. Her interests include volunteering with Floating Doctors (a non profit medical relief organization) in Bocas del Toro, Panama.

Bryan Copas

Bryan Copas

Physician Assistant

Bryan Copas is a nationally certified Physician Assistant with more than 20 years of experience in Emergency, Urgent Care and Occupational Medicine.  His medical education started when he joined the Army in 1989 and served as a Field Medic in Texas, Germany, Saudi Arabia, Iraq, and California.  After an honorable discharge and working as an EMT in the emergency department at St. Luke’s Hospital in St. Louis, Missouri, he graduated from Central Missouri State University with a Bachelor of Science in Biology and minor in Chemistry.  

Bryan was promptly accepted to the Saint Louis University Physician Assistant Program and since graduating in 2002, he has been a licensed and nationally certified Physician Assistant practicing Emergency, Urgent Care and Occupational Medicine in Illinois, Missouri, Colorado and now Oregon.  He brings a unique perspective to Doctors Express because of his varied experiences and fund of knowledge.  He is an empathetic and compassionate health care provider that brings a high level of discipline, focus and professionalism to everything he does.

Headshot: Ken Melvin

Dr. Kenneth Melvin

Dr. Ken Melvin’s interests are in Internal Medicine and Urgent Care. Dr. Melvin received his undergraduate degree from University of Oregon and his medical (and surgery) degree from Otago University Medical School in New Zealand.

He further received specialty training in pulmonology at England’s St Thomas Hospital and in Emergency Medicine at the Royal Infirmary in Edinburgh, Scotland. He then returned to complete residency training and Board Certification in internal medicine in 2003 at the St. Vincent Hospital in Portland and had been in private practice until August of 2012, when he decided to join the Doctors Express team.

Dr. Lou Perretta

Dr. Lou Perretta

Dr. Perretta is an experienced Emergency Physician who has seen the value of Urgent Care centers in helping patients with acute medical problems get care quickly and efficiently. He believes Doctors Express, in particular, is able to provide this care in a calm and caring setting. More importantly this care is comprehensive – with onsite labs and X-rays – yet only costs a fraction of the expense that a busy hospital Emergency Department will charge.

As Medical Director he oversees all of the daily operation of the centers in Portland. Dr. Perretta has been practicing Emergency Medicine in the Portland medical community for the past 25 years. He has worked at the Legacy Good Samaritan Hospital as well as the Kaiser Sunnyside hospital. Dr. Perretta graduated from the University of Rochester School of Medicine and completed his residency at the University of Illinois in Chicago.

He has served as the Medical Director of EMS for Columbia County in Oregon and currently serves as the Medical Director of the EMT program at Clackamas Community College. 

Bill Princen

Dr. William Princen

Dr. Bill Princen has been an Emergency Medicine physician for the past 35 years, practicing mainly in rural hospitals on the Oregon Coast.

He received his Bachelor of Science degree in Biology from Lewis & Clark College in Portland and his Doctor of Medicine degree from Oregon Health & Science University in Portland. He did his Internship in San Francisco. He was Board certified in Emergency Medicine in 1984. 

He has taught college EMT and Nurse training programs and ran a county-wide Emergency Medical Service. He has traveled worldwide as a cruise ship physician.

He is the father of four, and his youngest are twins.

His interests, when he is not seeing patients at Doctors Express, are writing, photography, woodworking, nature, and travel.

Vandana Rana

Dr. Vandana Rana

Dr. Rana has been practicing medicine since 1987.  Her clinical interests span urgent care, primary care and public health.  Dr. Rana received her medical degree from the Government Medical College in Aurangabad, India.  She did her post graduate work and residency at OHSU in public health and Preventive Medicine.

Her philosophy of practice is to treat each patient as you would treat your own family.  Dr. Rana loves the friendly environment, teamwork and compassionate care patients receive at Doctors Express.

Art Ticknor

Dr. Arthur Ticknor

Dr. Art Ticknor practices medicine at Doctors Express and One Community Health in the Columbia Gorge. Prior to moving to Oregon Dr. Ticknor practiced medicine in upstate New York for 12 years.

He received his undergraduate degree in Philosophy from Colgate University and his M.D. from the University of Rochester in Rochester, New York. He completed a residency in Family Medicine in Rochester. Dr. Ticknor was a Peace Corps volunteer in Senegal for two and a half years.

Dr. Ticknor enjoys working with families of all shapes and sizes – and believes in the importance of creating long-term relationships with patients based on trust. A father of three, he is a fan of the Buffalo Sabres hockey team, and enjoys studying U.S. history, swimming, hiking and skiing.

Clinic Managers

Katy Jenkins

Katy Jenkins

Katy came on board Doctors Express in 2011 after completing her externship at our Lake Oswego center. She loves the friendly environment, teamwork and compassionate care patients receive at Doctors Express.

Katy is looking forward to helping Doctors Express grow and add more locations in the near future.

She is now the Assistant Manager of the NW Portland center.

Paige Rosenthal

Paige Rosenthal

Assistant Clinic Manager

After graduating from high school in the medical program at the Center for Advanced Learning in 2009, Paige went on to continue her education at Mt Hood Community College. She later decided to streamline her education by attending Concorde Career College where she finished the Medical Assistant with Limited X-Ray program. With a background in both Urgent Care and Pediatric clinics, she began working for Doctors Express in 2013 as a Certified Medical Assistant and Limited X-Ray tech. She in now Assistant Manager of our NE Portland center. 

When outside of the office, Paige enjoys reading, traveling, and taking dance classes around the Portland area. She is also a member of several bowling leagues and enjoys spending time her daughter. 

Lead Medical Assistants

Amanda Pinard

Amanda Pinard

After graduating high school in 2009, Amanda began attending PCC before transfering to Pioneer Pacific College. She began her medical career with medical assisting courses for a year before advancing to limited x-ray and associate classes. She began as an extern with Doctors Express before being hired on as a full time employee three months later. After a year and a half Amanda still loves the challenge of the work, and the opportunity to practice with a diverse array of medical needs.

Cindy Farfan

Cindy Farfan

Cindy began working in the medical field in 2011. After completing her externship with Doctors Express, she continued to learn alongside her co-workers and providers in delivering exceptional care for patients.

Cindy enjoys working in an urgent care setting, due to the variety of injuries, and ailments that patients present with. She hopes to continue expanding her knowledge and growing with Doctors Express.

John McKey

John McKey

After a distinguished military career – where he served in many operations and earned a Commendation medal from the Governor of California – John decided to go back to school to follow his calling to be in healthcare.

He earned his Associate in Science, Certification in Medical Assisting, Certification as a Phlebotomy Technician, and a licensed Limited X-Ray Tech from Pioneer Pacific College, graduating #1 in his class. John is currently enrolled at PSU as an undergraduate in the Pre-Med program.