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Dr. Davis Sim, MD, PHD

Springfield, OR

Accepting patients

    Who is Dr. Sim, Gastroenterologist in Springfield, OR?

    Dr. Davis Sim, MD, PHD is a Gastroenterologist, who primarily practices in Springfield, OR. Dr. Sim is fluent in English, and is currently seeing new patients. Dr. Sim’s practice accepts Kaiser Permanente, Medicaid, Medicare, UnitedHealthcare, Cigna and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Sim’s office at (541) 868-9506.

    What are Areas of Expertise for Dr. Sim?

    Dr. Davis Sim, MD, PHD 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. Sim empowers patients to confidently navigate their health journey, specializing in Colon Cancer Screening, Digestive Disorders, Inflammatory Bowel Disease, or comprehensive wellness support. Serving the Springfield/OR community, Dr. Sim is dedicated to enhancing lives through expert, patient-centered care.

    What languages does Dr. Sim speak?

    Dr. Sim and their clinical team can communicate with patients in the following languages:

    • English

    What conditions does Dr. Sim treat?

    As a Gastroenterologist, Dr. Sim 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. Sim. 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:

    • Benign Transverse Colon Polyp
    • Benign Ascending Colon Polyp
    • Benign Tumor
    • Colonic Polyps
    • Colon Polyps
    • Non-cancerous transverse colon growth
    • Transverse colon adenoma
    • Transverse colon benign tumor
    • Non-cancerous ascending colon growth
    • Ascending colon adenoma
    • Ascending colon benign tumor

    ICD-10 Codes:

    • D123: Benign neoplasm of transverse colon
    • D122: Benign neoplasm of ascending 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:

    • Stomach and Duodenum Disorder
    • Stomach Disorder
    • Gastric Conditions
    • Duodenal Conditions
    • Digestive System Disorders

    ICD-10 Codes:

    • K3189: Other diseases of stomach and duodenum

    Also known as:

    • Chronic Stomach Inflammation
    • Stomach Disorder
    • Gastritis & Gastropathy
    • Chronic gastritis
    • Long-term stomach inflammation
    • Persistent stomach lining inflammation

    ICD-10 Codes:

    • K2950: Unspecified chronic gastritis without bleeding

    Also known as:

    • History of Adenomatous and Serrated Colon Polyps
    • Past Colon Polyps
    • Previous Adenomas
    • History of Precancerous Colon Growths

    ICD-10 Codes:

    • Z860101: Personal history of adenomatous and serrated colon polyps

    What procedures does Dr. Sim perform?

    As a Gastroenterologist, Dr. Sim 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. Sim. 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:

    • Colonoscopy with Biopsy
    • Colonoscopy with Polyp Removal
    • Diagnostic Colonoscopy with Biopsy
    • Colonoscopy with Tissue Removal
    • Colonoscopy
    • Colorectal Cancer Screening Tests
    • Flexible Colonoscopy
    • Colon Biopsy
    • Large Intestine Scope
    • Colorectal Cancer Screening
    • Flexible Colonoscopy with Polypectomy
    • Colon Polyp Removal
    • Colorectal Lesion Excision
    • Colon Exam with Biopsy
    • Lower Endoscopy
    • Colon Cancer Screening
    • Flexible colonoscopy with EMR
    • Endoscopic mucosal resection (colon)
    • Colon polyp removal during colonoscopy

    CPT Codes:

    • 45380: Colonoscopy, flexible; with biopsy, single or multiple
    • 45385: Colonoscopy, flexible; with removal of tumor(s), polyp(s), or other lesion(s) by snare technique
    • 45378: Colonoscopy, flexible; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
    • 45390: Colonoscopy, flexible; with endoscopic mucosal resection

    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:

    • EGD with Esophageal Balloon Dilation
    • Colonoscopy with Injections
    • Diagnostic Upper Endoscopy with Biopsy
    • Flexible Sigmoidoscopy with Biopsy
    • Upper Endoscopy with Varices Banding
    • Esophagus Widening Procedure (Endoscopic)
    • Colonoscopy
    • Colorectal Cancer Screening Tests
    • Upper Endoscopy with Esophageal Dilation
    • Flexible Esophagoscopy with Balloon
    • EGD with Balloon Widening
    • Flexible Colonoscopy with Injection
    • Colon Scope with Medication
    • Therapeutic Colonoscopy
    • EGD with Biopsy
    • Esophagogastroduodenoscopy
    • Upper GI Endoscopy
    • Stomach Scope with Sample
    • Sigmoid Colon Scope with Biopsy
    • Lower Endoscopy with Tissue Sample
    • Flexible Sigmoidoscopy and Biopsy
    • Rectum and Lower Colon Exam
    • EGD with Band Ligation
    • Esophageal Varices Banding
    • Gastric Varices Treatment
    • Esophageal Dilation
    • EGD with Dilation
    • Upper Endoscopy with Widening

    CPT Codes:

    • 43249: Esophagogastroduodenoscopy, flexible, transoral; with transendoscopic balloon dilation of esophagus (less than 30 mm diameter)
    • 45381: Colonoscopy, flexible; with directed submucosal injection(s), any substance
    • 43235: Esophagogastroduodenoscopy, flexible, transoral; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)
    • 45331: Sigmoidoscopy, flexible; with biopsy, single or multiple
    • 43244: Esophagogastroduodenoscopy, flexible, transoral; with band ligation of esophageal/gastric varices
    • 43248: Esophagogastroduodenoscopy, flexible, transoral; with insertion of guide wire followed by passage of dilator(s) through esophagus over guide wire

    Also known as:

    • Abdominal Fluid Drainage with Imaging Guidance
    • Guided Abdominal Paracentesis
    • Ascites Drainage with Ultrasound
    • Fluid Removal from Belly

    CPT Codes:

    • 49083: Abdominal paracentesis (diagnostic or therapeutic); with imaging guidance

    Also known as:

    • Sigmoidoscopy with Polyp Removal
    • Colorectal Cancer Screening Tests
    • Flexible Sigmoidoscopy with Polypectomy
    • Colon Polyp Removal (Lower Colon)
    • Sigmoid Colon Lesion Excision
    • Lower Endoscopy with Polyp Removal

    CPT Codes:

    • 45338: Sigmoidoscopy, flexible; with removal of tumor(s), polyp(s), or other lesion(s) by snare technique

    Also known as:

    • Flexible Sigmoidoscopy
    • Colorectal Cancer Screening Tests
    • Sigmoidoscopy
    • Lower colon exam
    • Flexible colon scope
    • Rectum and lower colon check

    CPT Codes:

    • 45330: Sigmoidoscopy, flexible; diagnostic, including collection of specimen(s) by brushing or washing, when performed (separate procedure)

    Also known as:

    • Esophageal Dilation (Bougie)
    • Esophageal Widening
    • Bougie Dilation of Esophagus
    • Swallowing Tube Dilation

    CPT Codes:

    • 43450: Dilation of esophagus, by unguided sound or bougie, single or multiple passes

    Also known as:

    • Liver Biopsy (Needle)
    • Percutaneous liver biopsy
    • Needle liver sample
    • Liver tissue biopsy
    • Liver needle aspiration

    CPT Codes:

    • 47000: Biopsy of liver, needle; percutaneous

    Also known as:

    • Upper Endoscopy with Polyp Removal
    • EGD with Polypectomy
    • Esophagus, Stomach, Duodenum Scope with Removal
    • Flexible Endoscopy Tumor Excision

    CPT Codes:

    • 43251: Esophagogastroduodenoscopy, flexible, transoral; with removal of tumor(s), polyp(s), or other lesion(s) by snare technique

    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:

    • Capsule Endoscopy
    • Pill Camera
    • Wireless Capsule Endoscopy
    • Small Bowel Capsule Endoscopy
    • Intestinal Imaging Pill

    CPT Codes:

    • 91110: Gastrointestinal tract imaging, intraluminal (eg, capsule endoscopy), esophagus through ileum, with interpretation and report

    Does Dr. Sim accept my insurance?

    Dr. Sim accepts most major insurance plans. Important: Please call our office at (541) 868-9506 before your appointment to verify that your specific plan and network are accepted.

    What insurance plans does Dr. Sim accept in Springfield, OR?

    Dr. Sim in Springfield, 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 (Regence)

    • Crown Cork and Seal Company

    • Medicare

    • Pacific Life Insurance Company

    • PacificSource

    • Providence Health Plans

    • StableView Health

    • UnitedHealthcare

    • Young Life

    View All Insurances

    Where is Dr. Sim's office located?

    Dr. Davis Sim's Primary Practice

    3355 Riverbend Dr # 500

    Springfield, OR 97477

    (541) 868-9506

    Get Directions

    What is Dr. Sim's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.

    Dr. Sim's National Provider Identifier (NPI) number is 1265668263.

    What common questions do patients ask about Dr. Sim?

    Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Sim

    What is Dr. Davis Sim's specialty?

    Dr. Sim is a Gastroenterologist near Springfield, 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. Sim to book an appointment today.

    Is this Dr. Davis Sim affiliated with a ranked Castle Connolly Top Hospital?

    No, Sim is not affiliated with a Castle Connolly Top Hospital, but is affiliated with the following hospitals: River Bend Hospital. Castle Connolly Top Hospitals 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 Davis Sim accepting new patients in Springfield, OR?

    Yes, Dr. Davis Sim is accepting new patients at this time.

    Does Dr. Davis Sim offer online booking?

    Please contact Dr. Sim's office at (541) 868-9506 for information about online booking, telehealth, or to schedule an appointment.

    How can I make an appointment with Davis Sim?

    Please contact Dr. Sim's office at (541) 868-9506 for information regarding telehealth appointment availability or for scheduling assistance.

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