R. Derrick D. Knowles, MD
Gresham, OR 97030
Providence Primary Care - Gresham
440 Northwest Division Street, Gresham, OR 97030
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About R. Derrick D. Knowles
R. Derrick Knowles, M.D., is a family medicine physician who chose to become a medical provider because his Mom and three older siblings are all in health care.
In his practice, Dr. Knowles emphasizes a healthy diet and exercise, along with prevention and screening, which he believes can make all the difference in the world. He views himself as a health advisor and provides his patients with all the available information to help them make the best decisions. What he enjoys most about being a medical provider is when he is told by a patient that he made a positive impact in their life. “My role is to provide the patient with accurate, evidence-based information about their condition or diagnosis,” he explains, “and then develop a care plan that effectively works best for them. Most days, both the patient and I are happy with the outcome.”
Dr. Knowles earned his medical degree from the American University of the Caribbean. He completed his internship and residency training at Group Health Permanente in Seattle.
Although he was born and raised in Alaska, Dr. Knowles has lived in the Dutch West Indies and England. In his free time, he works out at the gym five to six days a week. He and his spouse, who is Australian, love their pets, finding new restaurants, reading and traveling the world.
American University
Residency/Internship
Group Health Permanente
2004
- American Board of Family Medicine, Family Medicine

Providence Medical Group - Oregon
Community Reviews
At Providence, we're dedicated to providing you quality, personalized health care. We are constantly striving to optimize your experience.
As part of ensuring you have a positive experience with Providence, our online provider directory includes ratings and patient comments for select providers. More about our survey.
Dr. Knowles has been the best provider I ever had.
Providence Patient
Dr knowles is the best
Providence Patient
Awesome doctor! Never had a bad experience here
Providence Patient
Called Monday morning and received an appointment 12.45, same day. Very good service. We like Providence.
Providence Patient
We appreciate Dr. Knowles - his knowledge, care, and time he spends with us. Dr. Knowles is easy to talk to and work with and is open to listening to thoughts and ideas.
Providence Patient
Exceptional educated medical doctor with giving the patient 100 percent of his focus and attention on the medical problem to solve.
Providence Patient
Dr. Knowles is a fantastic doctor. He was careful to listen to my symptoms and concerns and made a treatment plan that I was satisfied with. It is clear that he cares for me and my family. It is an honor to have Dr. Knowles as my Primary Care Provider.
Providence Patient
Very knowledgeable
Providence Patient
I can't say enough about Dr. Knowles. I've followed him to serval locations. I just recently moved back from out of state and re established care with him and he went through everything making sure I was taken care of. He is the best. Thank you Dr. Knowles.
Providence Patient
Provider seems rushed. Don't really feel comfortable talking with him, it's like he does have time to listen and care.
Providence Patient
My Husband, my Mom, and myself all LOVE Dr Knowles! His bedside manner and professionalism are second-to-none, and his personality is fantastic snd warm - not at all stuffy. He puts everyone right at ease.
Providence Patient
Dr. Knowles is such an awesome medical provider that my significant other is going to switch Dr. Knowles too. My significant other has been to two of my appointments with me and he is very impressed with the experiences and care I've received during my appointments.
Providence Patient
Dr Knowles and staff are always nice and helpful in any situations! I'm very comfortable talking to any of them
Providence Patient
Dr, Knowles is an excellent physician. He immediately diagnosed my medical issues and explained causes and available treatments. Dr. Knowles is very knowledgeable, professional and a very pleasant person. I would definitely recommend Dr. Knowles to friends and family. The from desk personnel are outstanding as well. The entire team makes visiting the doctor's office a pleasure.
Providence Patient
Seemed willing to spend the time needed to address my concerns. This was a new Patient appointment.
Providence Patient
Outstanding care from my doctor and staff
Providence Patient
Dr. Knowles explains well, takes his time and listens. So glad I found this doctor.
Providence Patient
I am a new patient to Dr. Knowles. He was very helpful and thoughtful....I feel like I am in good hands.
Providence Patient
I thoroughly enjoyed meeting Dr. Knowles. He was professional, respectful, and present.
Providence Patient
I appreciate Dr. Knowles so much. I have been dealing with chronic issues for basically my whole life and for the first time for as long as I can remember, I am out of pain and feel healthy. He always takes my concerns very seriously and is very knowledgeable and answers any questions that I might have. I plan to stick with Dr. Knowles no matter what practice he goes to.
Providence Patient
I have been a patient of Dr Knowles for several years now. I think he is the most kind and compassionate doctor I've had
Providence Patient
Dr. Knowles is very easy to communicate with, he cares and everyone is so kind.
Providence Patient
Dr. Knowles is a fantastic physician.
Providence Patient
The first time I have visited Dr. Knowles and I was very impressed with him and his care.
Providence Patient
I highly recommend my provider and everyone in the office.
Providence Patient
I had really good experience with my provider. I saw Dr Richard knowles, as a new patient. He was very kind and personable, caring, spent long time with talking about my health conditions. I highly recommend him to friends and family members.
Providence Patient
Everybidy qA CVERY PROFESSIONAL AND CURTEOUS.
Providence Patient
Dr. Knowles always takes very good care of me.
Providence Patient
I was concerned that I had contracted COVID. I got my appointment with Dr. Knowles the same morning I called, and he ordered the tests that showed I had indeed contracted COVID. Paxlovid was prescribed and I believe I am on the mend. I am grateful to Dr. Knowles, his staff who went out their way to get me in right away, and others at Providence who make me glad I am under their care. Thanks.
Providence Patient
Loved Dr Knowles, made me feel as though I mattered. I may be 90 years old, but he made me feel like I'm still alive and deserved the very best! It's been awhile since I felt that personal connection.
Providence Patient
Dr. Knowles is the best. Know he is busy, but he still takes time to address your concerns.
Providence Patient
This was my first visit with Dr. Knowles, glad I came back to Providence
Providence Patient
Dr. Knowles has been a great provider. A positive experience with all of the staff I have interacted with at Providence
Providence Patient
Dr Knowles is very kind, knowledgeable, respectful. He discusses plan of care versus telling patients what to do.
Providence Patient
This was my first time seeing Dr. Knowles. He immediately put me at ease and I felt comfortable talking about my health concerns. I appreciated his insight and knowledge. He took time to address my needs and clearly communicated his advice. My impression is I found an excellent physician. Thank you Dr. Knowles.
Providence Patient
Good
Providence Patient
He was very nice and made me feel comfortable
Providence Patient
Always have a pleasant visit here.
Providence Patient
Enjoyed talking to a male doctor my age. Could have talked more, but I am sure he has a schedule to keep.
Providence Patient
This (provider) and he's team (my care team) listened to my concerns and took ownership to me get the help I needed. They all did the very best they could and I'm grateful.
Providence Patient
The health care team are kind and courteous. During my visit with Dr. Knowles was very helpful, caring and understanding toward my condition. I'm truly grateful and appreciate everything he does for my well-being. Thank you
Providence Patient
Dr Knowles has been my primary care doctor for 12 years. He remains my physician because of his manners, knowledge and total understanding of his patients. He has a great personality- to me. He is an asset to any clinic he practices at!
Providence Patient
Dr Knowles and staff are always upbeat, professional and caring!!
Providence Patient
Excellent care and cooperation
Providence Patient
Dr. Knowles is a wonderful caring physician. I trust his guidance and feel confident in his care.
Providence Patient
This was my first visit with this doctor. He was friendly.,Answered questions and was a good listener.He gave good advice and I feel comfortable seeing him again.
Providence Patient
Good
Providence Patient
Dr. Knowles has a wonderful bedside manner and is easy to talk to. My significant other was with me at this appointment and wants to switch his provider to Dr. Knowles. We were both impressed with him.
Providence Patient
Very informative
Providence Patient
Dr. Knowles is one of the best doctor we've known. He is kind, patient, respectful as well as a fine clinician. We wish every doctor we see was as good as he is.
Providence Patient
The front desk personnel were very professional and friendly. They made it a pleasure to visit the office and provided a pleasant experience. Doctor Knowles is an outstanding doctor who has assisted me in maintaining good health. He has a very pleasant demeanor and listens to my health concerns and takes appropriate, positive actions.
Providence Patient
I love Dr Knowles!! He's very clearly caring and takes your concerns seriously. He's also just SO nice!
Providence Patient
Dr. Knowles attention to detail, reviewing past visit notes and validating whether concerns remain or have resolved give me confidence that I'm receiving the best care and attention to manage my health questions and concerns.
Providence Patient
He was personable, listened, and explained well in layman's terms health issues.
Providence Patient
I am always treated with respect, and my Dr. Trusts me to know my own body, and listens to what I have to say.
Providence Patient
Good visitFriendly knowledgable peopleSeen on time
Providence Patient
This was my first visit with Dr. Knowles and I'm very pleased with the care he provided.
Providence Patient
DR. KNOWLES AND YOUR TEAM ARE THE BEST HEALTH PROVIDERS I'VE EVER HAD. THANK-YOU SO MUCH!
Providence Patient
Dr. Knowles is always very thorough. I appreciate his professionalism.
Providence Patient
Dr. Knowles is an excellent doctor as he is kind, listens very thoughtfully and is so very encouraging. When I see Dr. Knowles I always know that whatever I'm worried about will be taken care of . Dr. Knowles always includes me in whatever plan of action is decided upon and listens to my concerns with genuine interest and questions. Dr. Knowles is always helping me through taking care of my diabetes and never makes me feel bad when I lose a bit of control -helping me regain control and turn it around. Everyone in the office is just wonderful and I couldn't ask for better healthcare. Thank you all very much.
Providence Patient
Dr. Knowles has been my PCP for 7 years. I've always received exemplary care and attention.
Providence Patient
Dr. Knowles is a very good listener and treated me with kindness and respect like I've never had in a caregiver before. He made me feel comfortable in asking my questions and gave me thoughtful answers. Being a new resident to the area I plan to keep seeing him when I need care and for yearly wellness exams.
Providence Patient
Dr. Knowles has always treated me with respect and answers all my questions.
Providence Patient
Dr b Knowles is a caring physician. He takes his time to listen to you and probe for more information.
Providence Patient
He's one of the best!
Providence Patient
I really loved my office visit every one was so very caring and beyond carrying.I would definitely recommend this location of Providence,I was treated with respect and concern .
Providence Patient
Professional and courteous.
Providence Patient
Dr. KNOWLES IS A GEM!!
Providence Patient
I felt very relaxed. The staff were pleasant and helpful. It was my first visit and I will be referring my husband to this provider!!
Providence Patient
Clinical Interests
- Abdominal Cramps
- Abdominal Pain
- Abnormal Bowel Movement
- Abnormal Stool
- Abnormal Weight Loss
- Abrasion
- Acne
- Actinic Cheilitis
- Acute Arthritis
- Acute Back Pain
- Aging
- Alcohol Dependency
- Allergic Conjunctivitis
- Allergic Contact Dermatitis
- Allergic Reaction
- Allergic Rhinitis
- Allergic Wheezing
- Allergies
- Altered Bowel Habits
- Anal Itching
- Anal Pain
- Anemia
- Angular Cheilitis
- Animal Bite
- Ankle Injury
- Ankle Instability
- Anorexia
- Anxiety
- Aphthous Ulcers
- Arm Pain
- Arm Weakness
- Arthralgia
- Asthma
- B12 Deficiency Anemia
- B12 Shots
- Back Injury
- Back Muscle Injury
- Back Muscle Pain
- Back Pain
- Back Spasm
- Bedbugs
- Behavioral Disorders
- Bereavement
- Bilateral Knee Pain
- Birth Control Counseling
- Birthmark
- Bleeding During Intercourse
- Bleeding Hemorrhoids
- Blister
- Blood In Stool
- Blurred Vision
- Breast Discharge
- Breast Examination
- Breast Lump
- Bright Red Blood Per Rectum
- Bronchitis
- Bruising
- Burns
- Camp Physicals
- Celiac Disease
- Cellulitis
- Cerumen Removal
- Chest Pain
- Chest Pain On Breathing
- Chlamydia
- Choking Sensation
- Cholesterol Disorders
- Cholesterol Management
- Chronic Abdominal Pain
- Chronic Cough
- Chronic Diarrhea
- Chronic Disease Management
- Chronic Fatigue Syndrome (Cfs)
- Chronic Kidney Disease (Ckd)
- Chronic Migraines
- Chronic Obstructive Pulmonary Disease
- Chronic Pain
- Claudication
- Cold Intolerance
- Cold Sore
- College Health
- Common Cold
- Concussion
- Concussion Testing
- Conduct Disorder
- Confusion
- Congenital Ear Deformity
- Conjunctivitis
- Constant Nausea
- Constipation
- Contact Dermatitis
- Coping Skills
- Cough
- Cradle Cap
- Cystitis
- Daytime Sleepiness
- Decrease In Appetite
- Decreased Libido
- Dehydration
- Dementia
- Depressed Mood
- Depression
- Dermatophytosis
- Developmental Assessment
- Diabetes Counseling
- Diabetes Education
- Diabetes Management
- Diabetes Mellitus
- Diabetes Therapy
- Diarrhea
- Diet And Exercise
- Diet And Nutrition
- Diplopia
- Disability Evaluation
- Disorder Of Balance
- Distractible
- Diverticulitis
- Dizziness
- Drug Reaction
- Dry Nose
- Dry Scalp
- Dry Sinus
- Dry Skin
- Dyshidrosis
- Dysmenorrhea
- Dyspepsia
- Dysphagia
- Dysphoria
- Dyspnea On Exertion
- Dysuria
- Ear Discharge
- Ear Drainage
- Ear Exam
- Ear Infections
- Ear Pressure
- Earache
- Eating Disorders
- Eczema
- Elbow Pain
- Elbow Sprain
- Emphysema
- Employee Health
- Enlarged Prostate
- Environmental Allergies
- Epicondylitis
- Epigastric Pain
- Epistaxis
- Erectile Disorder
- Eructation
- Erythema
- Executive Physical Examinations
- Eye Infections
- Eye Pain
- Eye Strain
- Face Swelling
- Facial Nerve Palsy And Paresis
- Facial Pain
- Facial Tingling
- Falls
- Family Planning
- Fasciculations
- Fatigue
- Fecal Incontinence
- Feeding Problems
- Fever
- Fever With Chills
- Fibrocystic Breast Changes
- Fibromyalgia
- Finger Pain
- First Degree Burns
- Fitness For Duty Evaluations
- Flatulence
- Floaters
- Flu Shot Vaccination
- Folliculitis
- Food Allergy
- Food Poisoning
- Foot Injury
- Foot Pain
- Frailty
- Frequency Of Urination
- Frequent Urinary Tract Infections
- Gastric Ulcer
- Gastroenteritis
- Gastroesophageal Reflux Disease
- General Well Visit
- Genital Herpes, Female
- Genital Herpes, Male
- Genital Warts
- Gluten Allergy
- Gluten Intolerance
- Gluten Sensitivity
- Gout
- Grave's Disease
- Grief
- Groin Mass
- Groin Pain
- Gum Infection
- Gynecological Exam
- Hand Injury
- Hand Pain
- Head Congestion
- Headache
- Health Maintenance
- Hearing Loss
- Heart Disease
- Heart Murmur
- Heart Racing
- Heat Illness
- Heat Intolerance
- Heel Pain
- Hematochezia
- Hematuria
- Hemoptysis
- Hemorrhoids
- Hepatitis
- Hepatitis A Vaccination
- Hepatitis B Vaccination
- Hernia
- Herpes
- Herpes Zoster
- Herpetic Whitlow
- Hip Pain
- Hirsutism
- Hoarseness
- Hot Flashes
- Human Bites
- Human Immunodeficiency Virus (Hiv)
- Human Papilloma Virus (Hpv)
- Human Papilloma Virus (Hpv) Vaccination
- Hyperglycemia
- Hypertension
- Hyperthyroidism
- Hypothyroidism
- Impacted Cerumen
- Impetigo
- Infectious Mononucleosis
- Influenza
- Ingrown Hair
- Ingrown Nail
- Insect Allergy
- Insulin Resistance
- Intention Tremor
- Interstitial Cystitis
- Intertrigo
- Iron Deficiency Anemia
- Irregular Menstruation
- Irritability
- Itchy Ear
- Jaundice
- Jaw Pain
- Joint Sprain
- Joint Stiffness
- Joint Swelling
- Joint Warmth
- Keloid
- Keratin Cyst
- Keratitis
- Keratosis Pilaris
- Knee Click
- Knee Injury
- Knee Pain
- Labyrinthitis
- Laceration
- Lactose Intolerance
- Laryngitis
- Lateral Epicondylitis
- Lazy Eye
- Leg Numbness
- Leg Pain
- Leg Weakness
- Lethargy
- Lgbtq+ Health
- Lice
- Lifestyle Modification
- Lipomas
- Lower Back Pain
- Lump In Throat
- Lyme Disease
- Lymphadenopathy
- Malaise And Fatigue
- Mastodynia
- Measles Vaccination
- Medial Epicondylitis
- Memory Disorders
- Meningitis Vaccination
- Menopause
- Mens Health
- Migraine
- Migraine Treatment
- Minor Injury
- Missed Periods
- Mmr Vaccine
- Mood Symptoms
- Motion Sickness
- Mouth Bleeding
- Mouth Pain
- Mouth Ulcer
- Muscle Cramps
- Muscle Strain
- Muscle Tears
- Muscle Weakness
- Musculoskeletal Pain
- Myalgia
- Nail Disease
- Nasal Congestion
- Nasal Obstruction
- Nausea
- Neck Muscle Injury
- Neck Pain
- Neck Sprain
- Neonatal Acne
- Nevus
- Newborn Care
- Newborn Feeding Problems
- Night Sweats
- Nightmares
- Nipple Discharge
- Noisy Breathing
- Norovirus
- Nose Pain
- Numbness
- Nutrition And Health
- Nutritional Counseling
- Obesity
- Odynophagia
- Optic Migraines
- Orthopnea
- Orthostatic Hypotension
- Osteoarthritis
- Osteopenia
- Osteoporosis
- Otalgia
- Otitis
- Overweight
- Pain Management
- Palpitations
- Panic Reaction
- Pap Smear
- Paresthesia
- Paronychia
- Patellofemoral Syndrome
- Penile Bleeding
- Penile Discharge
- Performance Anxiety
- Persistent Cough
- Pertussis
- Pharyngitis
- Plantar Fasciitis
- Pleurisy
- Pleuritic Pain
- Pneumonia
- Pneumonia Vaccination
- Poison Ivy
- Poison Oak
- Polypharmacy
- Positional Vertigo
- Post Nasal Drip
- Postcoital Bleeding
- Prediabetes
- Preoperative Evaluation
- Preventive Medicine
- Problems With Smell And Taste
- Prostate Cancer Screening
- Prostate Examination
- Prostate Specific Antigen Blood Test
- Pruritus
- Psychomotor Agitation
- Pulmonary Infections
- Pyelonephritis
- Rash
- Rectal Bleeding
- Rectal Pain
- Reproductive Health / Oral Contraception
- Respiratory Syncytial Virus
- Restless Legs Syndrome
- Retained Tampon
- Rhinitis
- Rosacea
- Scab
- Scabies
- Scaly Skin
- School Anxiety
- School Physical
- Sciatica
- Scratchy Voice
- Scrotal Pain
- Seasonal Allergies
- Seborrheic Dermatitis
- Secondary Enuresis
- Sensitive Skin
- Severe Asthma
- Sexual Health
- Sexually Transmitted Disease (Std)
- Shin Splints
- Shingles Vaccination
- Shortness Of Breath (Sob)
- Shoulder Injury
- Shoulder Pain
- Shoulder Sprain
- Shoulder Strain
- Sickle Cell Disease
- Sinus Pain
- Sinus Pressure
- Sinusitis
- Skin Abscess
- Skin Cancer Screening
- Skin Disease
- Skin Tag
- Skin Tag Removal
- Sleep Disorders
- Sleep Terrors
- Slowing Of Urinary Stream
- Smoker Cough
- Snoring
- Sore Throat
- Spider Bite
- Splinter Removal
- Sports Physical Exam
- Sports Related Concussion Testing
- Sprain
- Sputum Production
- Staphylococcus Infections
- Stomach Cramps
- Stomach Pain
- Stool Changes
- Straining On Urination
- Strep Throat
- Stress Incontinence
- Stridor
- Stye
- Substance Addiction
- Sudden Infant Death Syndrome
- Suicidal Ideation
- Sunburn
- Suture Removal
- Swallowing Problem
- Syncope
- Tachycardia
- Teething
- Tension Headache
- Testicular Pain
- Throat Tightness
- Thumb Dislocation
- Thyroid Disorder
- Tick Borne Infections
- Tinea Capitis
- Tinea Corporis
- Tinea Cruris
- Tinea Pedis
- Tingling
- Tinnitus
- Tobacco Use Cessation
- Tongue Pain
- Tongue Swelling
- Tracheobronchitis
- Travel Medicine
- Traveler's Diarrhea
- Tremor
- Tuberculosis (Tb) Test
- Twitching
- Type 1 Diabetes
- Type 2 Diabetes
- Unsteady Gait
- Upper Back Pain
- Upper Respiratory Infection
- Urethral Discharge
- Urge Incontinence
- Urinary Hesitation
- Urinary Retention
- Urinary Tract Infection
- Urinary Urgency
- Urticaria
- Vaccinations
- Varicella
- Varicella Vaccination
- Vasovagal Syncope
- Vertigo
- Viral Conjunctivitis
- Virtual Care
- Visual Discomfort
- Visual Disturbance
- Vitamin D Deficiency
- Vitamin Deficiency
- Voice Problems
- Vomiting
- Warts
- Weakness
- Weight Loss
- Weight Problem
- Well Child Exam
- Wellness
- Wheezing
- Wrist Pain
- Wrist Sprain
I always get the best care from everyone atThis clinic and from Dr. Knowles.
Providence Patient