Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Lew, Gastroenterologist in Tualatin, OR?
Dr. Ronald Lew, MD is a Gastroenterologist, who primarily practices in Tualatin, OR with 2 additional practice locations. He is board certified by the American Board of Internal Medicine. Dr. Lew graduated from New York University School of Medicine and completed his residency at La Co Harbor Ucla Med Ctr, Internal Medicine. Dr. Lew is fluent in English and Spanish, and is currently seeing new patients. Dr. Lew’s practice accepts Medicare, Aetna, Cigna, UnitedHealthcare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Lew’s office.
What are Areas of Expertise for Dr. Lew?
Dr. Ronald Lew, MD is a highly-rated, board-certified Gastroenterologist known for expertly diagnosing, treating, and managing a wide array of related conditions or procedures. Utilizing the latest medical advancements and evidence-based practices, Dr. Lew empowers patients to confidently navigate their health journey, specializing in Barrett's Esophagus, Colon Cancer Screening, Endoscopic Ultrasound, Esophageal Cancer, Gallbladder Disease, Pancreatic Disease, Pancreatic/Biliary Endoscopy (ERCP), or comprehensive wellness support. Serving the Tualatin/OR community, Dr. Lew is dedicated to enhancing lives through expert, patient-centered care.
Where did Dr. Lew go to medical school and complete their residency?
Residency: La Co Harbor Ucla Med Ctr, Internal Medicine | Harbor-UCLA Medical Center
Medical School: New York Univ Sch of Med, New York Ny | New York University School of Medicine
Is Dr. Lew board certified in Gastroenterologist?
Yes, Dr. Ronald Lew, MD is board certified by the American Board of Internal Medicine
What languages does Dr. Lew speak?
Dr. Lew and their clinical team can communicate with patients in the following languages:
English
Spanish
What conditions does Dr. Lew treat?
As a Gastroenterologist, Dr. Lew 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. Lew. 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.
Also known as:
- Colon Cancer Screening
- Health Screening
- Colorectal Cancer Screening (PDQ®)
- Screening Tests to Detect Colorectal Cancer and Polyps
- Tests to Detect Colorectal Cancer and Polyps
- Colorectal Cancer Screening
- Colonoscopy Screening
- Bowel Cancer Screening
ICD-10 Codes:
- Z1211: Encounter for screening for malignant neoplasm of colon
Also known as:
- Colon Polyps
- Colonic Polyps
- Colorectal Polyps
- Intestinal Polyps
- Bowel Polyps
ICD-10 Codes:
- Z86010: Personal history of colon polyps
Also known as:
- Pancreatic Cyst
- Pancreatic Disease
- Cyst on Pancreas
- Pancreatic Pseudocyst
- Fluid Sac on Pancreas
ICD-10 Codes:
- K862: Cyst of pancreas
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:
- Stomach and Duodenum Disorder
- Stomach or Duodenum Polyp
- Stomach Disorder
- Gastric Conditions
- Duodenal Conditions
- Digestive System Disorders
- Gastric Polyp
- Duodenal Polyp
- Stomach Growth
ICD-10 Codes:
- K3189: Other diseases of stomach and duodenum
- K317: Polyp of stomach and duodenum
Also known as:
- Colon Polyps
- Colonic Polyps
- Colorectal polyps
- Bowel polyps
- Intestinal polyps
ICD-10 Codes:
- K635: Polyp of colon
Also known as:
- Benign Descending Colon Polyp
- Benign Ascending Colon Polyp
- Benign Tumor
- Colonic Polyps
- Colon Polyps
- Non-cancerous descending colon growth
- Descending colon adenoma
- Descending colon benign tumor
- Non-cancerous ascending colon growth
- Ascending colon adenoma
- Ascending colon benign tumor
ICD-10 Codes:
- D124: Benign neoplasm of descending colon
- D122: Benign neoplasm of ascending colon
Also known as:
- Barrett's Esophagus
- Barrett's Esophagus with High-Grade Dysplasia
- Esophagus Disorder
- Barrett’s Esophagus
- Barrett's condition
- Esophageal metaplasia
- Advanced Barrett's esophagus
- Barrett's esophagus with severe cell changes', 'Precancerous Barrett's esophagus
ICD-10 Codes:
- K2270: Barrett's esophagus without dysplasia
- K22711: Barrett's esophagus with high grade dysplasia
Also known as:
- Iron Deficiency Anemia from Chronic Blood Loss
- Iron Deficiency Anemia
- Anemia
- Iron
- Anemia due to iron deficiency and blood loss
- Chronic blood loss anemia
- Low iron anemia from bleeding
- Anemia from Iron Lack
- Low Iron Anemia
- Sideropenic Anemia
ICD-10 Codes:
- D500: Iron deficiency anemia secondary to blood loss (chronic)
- D509: Iron deficiency anemia, unspecified
Also known as:
- Family History of Colon Polyps
- Colonic Polyps
- Family History
- Genetic colon polyps
- Hereditary bowel polyps
- Inherited risk for colon polyps
ICD-10 Codes:
- Z8371: Family history of colonic polyps
Also known as:
- Stomach Inflammation
- Stomach Disorder
- Gastritis & Gastropathy
- Gastritis
- Inflamed stomach lining
- Stomach lining inflammation
ICD-10 Codes:
- K2970: Gastritis, unspecified, without bleeding
Also known as:
- Blocked Bile Duct
- Bile Duct Disease
- Biliary Obstruction
- Bile Duct Blockage
- Obstructed Bile Duct
ICD-10 Codes:
- K831: Obstruction of bile duct
Also known as:
- Blocked Esophagus
- Esophagus Disorder
- Esophageal Obstruction
- Food Pipe Blockage
- Swallowing Difficulty
ICD-10 Codes:
- K222: Esophageal obstruction
Also known as:
- Family History of Digestive Organ Cancer
- Cancer
- Family History
- Genetic risk for gastrointestinal cancer
- Family history of GI cancer
- Hereditary digestive cancer
ICD-10 Codes:
- Z800: Family history of malignant neoplasm of digestive organs
Also known as:
- Difficulty Swallowing
- Swallowing Disorder
- Dysphagia
- Trouble swallowing
- Painful swallowing
ICD-10 Codes:
- R1310: Dysphagia, unspecified
Also known as:
- Barrett's Esophagus with Low-Grade Cell Changes
- Esophagus Disorder
- Barrett’s Esophagus
- Low-Grade Dysplasia Barrett's', 'Mild Cell Changes in Esophagus', 'Early Barrett's Esophagus
ICD-10 Codes:
- K22710: Barrett's esophagus with low grade dysplasia
Which procedures does Dr. Lew perform as a Gastroenterologist?
As a Gastroenterologist, procedures performed by a Dr. Ronald Lew may include:
- Colonoscopy
- Colonoscopy Consultation
- Colorectal Cancer Screening
- Endoscopic Ultrasound
- Endoscopy / Endoscopic Ultrasound
- Gastric Balloon
- Gastric Stimulator Implantation Consultation
- Gastric Stimulator Implantation Follow Up
For detailed information, please contact Dr. Lew's office.
Does Dr. Lew accept my insurance?
Dr. Lew 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. Lew accept in Tualatin, OR?
Dr. Lew in Tualatin, OR accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
Aetna
All Other Third Party
Blue Cross Blue Shield of Michigan
Cambia (Regence)
CareOregon
CVS Health (formerly Aetna)
Express Scripts
Medicare
Samaritan Health Services
Yamhill Community Care
View All Insurances
Where is Dr. Lew's office located?
What is Dr. Lew's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Lew's National Provider Identifier (NPI) number is 1265428619.
What common questions do patients ask about Dr. Lew?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Lew
What is Dr. Ronald Lew's specialty?
Dr. Lew is a Gastroenterologist near Tualatin, OR. An internist focused on diagnosing and treating disorders of the digestive system, encompassing the stomach, intestines, liver, and gallbladder. This specialist manages conditions like abdominal pain, ulcers, diarrhea, cancer, and jaundice, and performs intricate diagnostic and therapeutic procedures using endoscopes to examine internal organs. Contact Dr. Lew to book an appointment today.
Is this Dr. Ronald Lew affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Lew is affiliated with Legacy Meridian Park 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
Where can I learn more about Gastroenterologist?
Explore Gastroenterologist with 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 Ronald Lew accepting new patients in Tualatin, OR?
Yes, Dr. Ronald Lew is accepting new patients at this time.
Does Dr. Ronald Lew offer online booking?
Please contact Dr. Lew's office for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Ronald Lew?
Please contact Dr. Lew's office for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Ronald Lew have?
Dr. Ronald Lew is certified by the American Board of Internal Medicine.
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