Our Clinics

NHC Oregon City Medical Clinic

At NHC Oregon City Medical Clinic, you will receive patient-centered, community-minded care no matter your ability to pay or current state of wellness.  NHC Oregon City Medical Clinic offers team-based care for patients of all ages. We also offer trusted referrals for patients in need of specialty care. 

Clinic Info

Hours of Operation

Monday – Friday: 7:00AM – 6:00PM

Saturday and Sunday: Closed

On-Call Provider: If the clinic is closed and you are a clinic patient in need of clinical advice, please dial (503) 656-9030 and request to speak with the on-call provider.

Our Services

  • Primary care
  • Family medicine
  • Preventative care, like physicals, well-child exams, health screenings, and vaccines
  • Chronic care, like diabetes management
  • Behavioral health and mental health support
  • Nutrition education
  • Prescription support

Financial Assistance

No insurance? No problem. We offer discounts on all our services and all patients are encouraged to apply.

I absolutely recommend this clinic, and my husband and nephew also go here. Erin Lingenfelter is our Family Nurse Practitioner and she's AMAZING! This clinic has everything you'll need and we've been so impressed with Erin's care for all of us. 

FIVE STARS! Diana, CLINIC patient

Our Staff

A bearded Max Cohen smiles for his headshot in from of a white background.

Maxwell Cohen, ND

Education:  N.D.  National University of Natural Medicine, Portland, OR | Residency at the National University of Natural Medicine, Portland, OR

Experience:  Completed residency in integrative primary care

At NHC:  I inform and educate patients on the importance of preventative healthcare with an interest in diet and lifestyle medicine and practice evidence-based integrative medicine

My Clinic:  Oregon City Medical

What I do for Fun:  Bike, go backpacking, photography, and spend time with family

Headshot of

Otuodita “Dr. E” Ejiasa, MD

Education:  M.D.  University of Pittsburgh, Pittsburgh, PA

Experience:  Over 12 years of experience in healthcare, including eight years of work in urgent care services, primary care services, and family medicine; additional experience designing and crafting grafts for spinal, joint, and reconstructive surgery; 2018 Portland Monthly’s Top Doctor

At NHC:  I provide primary care services to patients of all ages, backgrounds, and current states of wellness

My Clinic:  Oregon City Medical

What I do for Fun:  Cook, bake, travel, participate in outdoor sports, and read

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Brittney Griggs, PA

Education:  M.M.S.  Saint Francis University, Loretto, PA | Certificate in Physician Assistant Studies  Red Rocks Physician Assistant Program, Lakewood, CO

Experience:  Experience with a variety of patients from diverse backgrounds, ethnicities, sexual orientations, and gender identities

At NHC:  I provide primary care services to patients of all ages, backgrounds, and current states of wellness

My Clinic:  Oregon City Medical

What I do for Fun:  Read on rainy days, puzzle, golf, and go hiking

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Catherine Kateley-Williams, MA, LPC, CADC1

Education:  M.S.  Pacific University, Hillsboro, OR | Licensed Professional Counselor | Certified Drug and Alcohol Counselor

Experience:  Practicing counseling since 2015, with specialized training in mediation of group conflicts, gerontology work with end-of-life preparation, behavioral therapy, psychoeducation, motivational interviewing, and cognitive behavioral therapy

At NHC:  I provide Behavioral Health services to diverse populations, including pregnant women and women postpartum suffering from addiction, victims of trauma, individuals who experience homelessness and mental health disorders

My Clinic:  Oregon City Medical

What I do for Fun:  Read, sew, and volunteer at Portland’s various anime conventions

Erin, female, smiles for her headshot in from of a white background.

Erin Lingenfelter, FNP

Education:  M.S.N.  University of Indianapolis, Indianapolis, IN

Experience:  Six years’ experience in an inpatient setting at IU Health Methodist Hospital in Indianapolis

At NHC:  I provide primary care services to patients of all ages, backgrounds, and current states of wellness

My clinic:  Oregon City Medical

What I do for Fun:  Enjoy the Pacific Northwest through hiking and skiing, eat great food, and travel

Tyron Tracy, PA-C

Education:  M.M.S.  Arcadia University, Christiana, DE

Experience:  Two years in the Peace Corps, as well as time spent as an endocrinologist, volunteer EMT, and physician’s assistant in urgent care and family medicine

At NHC:  I care for patients ages three days old to 95 years old as a family medicine physician’s assistant with a focus on educating patients on health issues and ways to continue improving health outcomes

My Clinics:  Beaverton and Oregon City Medical

What I do for Fun:  Travel the world, experience different cultures and foods, and spend time with my two sons

Schedule Your Visit

NHC's team of primary care, dental, and  support staff provides comprehensive preventive, primary health, and dental care solutions for you. Our teams speak English and Spanish; other language translations are available upon request.