Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Knowles, Surgeon in Portland, OR?
Dr. Thomas Knowles, MD is a Surgeon, who primarily practices in Portland, OR with 1 additional practice location. Dr. Knowles is fluent in English, and is currently seeing new patients. Dr. Knowles’s practice accepts Kaiser Permanente, Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Knowles’s office.
What are Areas of Expertise for Dr. Knowles?
Dr. Thomas Knowles, MD is a highly-rated, board-certified Surgeon known for expertly diagnosing, treating, and managing a wide array of related conditions and procedures. Utilizing the latest medical advancements and evidence-based practices, Dr. Knowles empowers patients to confidently navigate their health journey, specializing in Endoscopic Surgery, Esophageal Disorders, Foregut Surgery, Gallbladder Surgery, Gastrointestinal Motility Disorders, Gastrointestinal Surgery, Hernia, Minimally Invasive Surgery, and comprehensive wellness support. Serving the Portland, OR community, Dr. Knowles is dedicated to enhancing lives through expert, patient-centered care.
What languages does Dr. Knowles speak?
Dr. Knowles and their clinical team can communicate with patients in the following languages:
English
What conditions does a Surgeon like Dr. Knowles typically treat?
As a Surgeon, Dr. Knowles diagnoses, treats, and manages a wide range of conditions. This condition information is derived from anonymized insurance claims and highlights the medical conditions most commonly treated by Dr. Knowles. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology.
Also known as:
- Diaphragmatic Hernia
- Groin Hernia (One Side)
- Hernia
- Inguinal Hernia
- Hiatal Hernia
- Hernia of the Diaphragm
- Unilateral Inguinal Hernia
- Single Groin Hernia
- Hernia in One Groin
ICD-10 Codes:
- K449: Diaphragmatic hernia without obstruction or gangrene
- K4090: Unilateral inguinal hernia, without obstruction or gangrene, not specified as recurrent
Also known as:
- Acid Reflux
- GERD
- Acid Reflux (GER & GERD) in Adults
- Acid Reflux (GER & GERD) in Children
- Acid Reflux (GER & GERD) in Infants
- Gastroesophageal Reflux
- Heartburn
- Indigestion
ICD-10 Codes:
- K219: Gastro-esophageal reflux disease without esophagitis
Also known as:
- Esophageal Cancer
- Esophagus Cancer
- Malignant Neoplasm of Esophagus
- Gullet Cancer
ICD-10 Codes:
- C155: Malignant neoplasm of lower third of esophagus
Also known as:
- Other Post-Surgery Condition
- Postoperative State
- Recovery After Surgery
- Surgical Follow-up
ICD-10 Codes:
- Z98890: Other specified postprocedural states
What procedures does a Surgeon like Dr. Knowles typically perform?
As a Surgeon, Dr. Knowles performs a variety of medical procedures. This procedure information is derived from anonymized insurance claims and highlights the medical procedures most commonly performed by Dr. Knowles. It provides insight into the doctor’s areas of experience and expertise based on real-world patient encounters from the past two years, updated quarterly. Learn more about our claims-based healthcare methodology.
Also known as:
- Upper Endoscopy with Biopsy
- Biopsy
- Endoscopy
- EGD with Biopsy
- Gastroscopy with Biopsy
- Esophagogastroduodenoscopy with Biopsy
CPT Codes:
- 43239: Esophagogastroduodenoscopy, flexible, transoral; with biopsy, single or multiple
Also known as:
- Laparoscopic Inguinal Hernia Repair
- Keyhole Groin Hernia Surgery
- Minimally Invasive Hernia Repair
- Laparoscopic Hernioplasty
CPT Codes:
- 49650: Laparoscopy, surgical; repair initial inguinal hernia
Also known as:
- Laparoscopic Gallbladder Removal
- Laparoscopic Gallbladder Removal with X-ray
- Keyhole Gallbladder Surgery
- Cholecystectomy Laparoscopic
- Minimally Invasive Gallbladder Surgery
- Cholecystectomy with Cholangiography
- Minimally Invasive Gallbladder Removal
CPT Codes:
- 47562: Laparoscopy, surgical; cholecystectomy
- 47563: Laparoscopy, surgical; cholecystectomy with cholangiography
Also known as:
- EGD with Esophageal Balloon Dilation
- Upper Endoscopy with Esophageal Dilation
- Flexible Esophagoscopy with Balloon
- EGD with Balloon Widening
CPT Codes:
- 43249: Esophagogastroduodenoscopy, flexible, transoral; with transendoscopic balloon dilation of esophagus (less than 30 mm diameter)
Also known as:
- Wireless Esophageal pH Test
- Esophageal pH Test
- Bravo pH Test
- Esophageal Reflux Monitoring
- Acid Reflux Test
CPT Codes:
- 91035: Esophagus, gastroesophageal reflux test; with mucosal attached telemetry pH electrode placement, recording, analysis and interpretation
Also known as:
- Esophageal Motility Study
- Esophageal manometry
- Swallowing function test
- GERD test
- Esophageal pressure study
CPT Codes:
- 91010: Esophageal motility (manometric study of the esophagus and/or gastroesophageal junction) study with interpretation and report;
Does Dr. Knowles accept my insurance?
Dr. Knowles accepts most major insurance plans. Important: Please call our office at before your appointment to verify that your specific plan and network are accepted.
What insurance plans does Dr. Knowles accept in Portland, OR?
Dr. Knowles in Portland, OR accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Third Party
Cambia Health Solutions
Cigna Group
Federal government of the United States
Kaiser Permanente
Medicare
Samaritan Health Services
State of Oregon
View All Insurances
Where is Dr. Knowles' office located?
What is Dr. Knowles's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Knowles's National Provider Identifier (NPI) number is 1114337466.
What common questions do patients ask about Dr. Knowles?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Knowles
What is Dr. Thomas Knowles's specialty?
Dr. Knowles is a Surgeon near Portland, OR.
What does a Surgeon do?
General surgeons are experts in diagnosing and managing surgical conditions which includes preoperative, operative, and postoperative care, as well as addressing complications. Their expertise include the areas such as the alimentary tract, breast, abdomen, skin and soft tissue, endocrine system, head and neck, pediatric surgery, surgical critical care, surgical oncology, trauma, burns, and vascular surgery. General surgeons increasingly utilize minimally invasive and endoscopic techniques to provide proper care. In addition to this, many general surgeons have expertise in transplantation, plastic, and cardiothoracic surgery.
Is this Dr. Thomas Knowles affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Knowles is affiliated with Legacy Good Samaritan Medical Center which is a Castle Connolly Top Hospital. Castle Connolly Top Hospitals are healthcare institutions recognized for their excellence in specific medical procedures and overall patient care. They are identified through a rigorous peer nomination process, evaluating factors like patient outcomes, quality of care, and expertise. The list recognizes hospitals that excel in 20 or more specific medical procedures, representing the top 25% nationwide. Castle Connolly Top Hospitals
When to see a Surgeon?: Guides for symptoms, conditions, and treatments
Understand your symptoms and know when it’s time to see a Surgeon. Explore insights from trusted medical experts on EverydayHealth.com, where you'll find the most relevant content and helpful condition guides for up-to date information about symptoms, causes, diagnosis, treatment and more. See all our health guides to find trusted information on medical conditions from our experts at Everyday Health.
Is Thomas Knowles accepting new patients in Portland, OR?
Yes, Dr. Thomas Knowles is accepting new patients at this time.
Does Dr. Thomas Knowles offer online booking?
Please contact Dr. Knowles's office for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Thomas Knowles?
Please contact Dr. Knowles's office for information regarding telehealth appointment availability or for scheduling assistance.
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