Accepting patients
Affiliated with a Castle Connolly Top Hospital
Who is Dr. Duncan, Gastroenterologist in Lewistown, PA?
Dr. Marten Duncan, DO is a Gastroenterologist, who primarily practices in Lewistown, PA with 2 additional practice locations. He is board certified. Dr. Duncan completed his residency at Nat'L Capital Consortium, Gastroenterology; Madigan Army Med Ctr, Internal Medicine. Dr. Duncan is fluent in English, and is currently seeing new patients. Dr. Duncan’s practice accepts Medicare and other major insurance plans. To book an appointment or to confirm insurance options, please call Dr. Duncan’s office.
Where did Dr. Duncan go to medical school and complete their residency?
Residency: Nat'L Capital Consortium, Gastroenterology; Madigan Army Med Ctr, Internal Medicine
Is Dr. Duncan board certified as a Gastroenterologist?
Yes, Dr. Marten Duncan, DO is board certified by the American Board of Internal Medicine
What languages does Dr. Duncan speak?
Dr. Duncan and their clinical team can communicate with patients in the following languages:
English
What conditions does a Gastroenterologist like Dr. Duncan typically treat?
As a Gastroenterologist, Dr. Duncan 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. Duncan. 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:
- 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:
- Stomach Inflammation
- Stomach Disorder
- Gastritis & Gastropathy
- Gastritis
- Inflamed stomach lining
- Stomach lining inflammation
ICD-10 Codes:
- K2970: Gastritis, unspecified, without bleeding
Also known as:
- Upper Middle Abdominal Pain
- Abdominal Pain
- Epigastric pain
- Pain below breastbone
- Upper stomach pain
ICD-10 Codes:
- R1013: Epigastric pain
Also known as:
- Difficulty Swallowing
- Swallowing Disorder
- Dysphagia
- Trouble swallowing
- Painful swallowing
ICD-10 Codes:
- R1310: Dysphagia, unspecified
Also known as:
- Colon Polyps
- Colonic Polyps
- Colorectal polyps
- Bowel polyps
- Intestinal polyps
ICD-10 Codes:
- K635: Polyp of colon
What procedures does a Gastroenterologist like Dr. Duncan typically perform?
As a Gastroenterologist, Dr. Duncan 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. Duncan. 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:
- Colonoscopy with Polyp Removal
- Colonoscopy with Biopsy
- Colonoscopy
- Colorectal Cancer Screening Tests
- Flexible Colonoscopy with Polypectomy
- Colon Polyp Removal
- Colorectal Lesion Excision
- Flexible Colonoscopy
- Colon Biopsy
- Large Intestine Scope
- Colorectal Cancer Screening
CPT Codes:
- 45385: Colonoscopy, flexible; with removal of tumor(s), polyp(s), or other lesion(s) by snare technique
- 45380: Colonoscopy, flexible; with biopsy, single or multiple
Also known as:
- Esophagus Widening Procedure (Endoscopic)
- EGD with Endoscopic Ultrasound
- Esophageal Dilation
- EGD with Dilation
- Upper Endoscopy with Widening
- Upper GI Endoscopy with Ultrasound
- EUS (Endoscopic Ultrasound)
- Esophagus, Stomach, Duodenum Ultrasound
CPT Codes:
- 43248: Esophagogastroduodenoscopy, flexible, transoral; with insertion of guide wire followed by passage of dilator(s) through esophagus over guide wire
- 43237: Esophagogastroduodenoscopy, flexible, transoral; with endoscopic ultrasound examination limited to the esophagus, stomach or duodenum, and adjacent structures
Also known as:
- Upper GI Endoscopy with Ultrasound Biopsy
- Biopsy
- Endoscopy
- Ultrasound
- EGD with EUS-FNA
- Endoscopic Ultrasound Biopsy
- Esophageal/Stomach Biopsy
CPT Codes:
- 43238: Esophagogastroduodenoscopy, flexible, transoral; with transendoscopic ultrasound-guided intramural or transmural fine needle aspiration/biopsy(s), (includes endoscopic ultrasound examination limited to the esophagus, stomach or duodenum, and adjacent structures)
Also known as:
- ERCP with Gallstone Removal
- ERCP
- Endoscopic Gallstone Removal
- Biliary Duct Stone Removal
- Pancreatic Duct Cleaning
CPT Codes:
- 43264: Endoscopic retrograde cholangiopancreatography (ERCP); with removal of calculi/debris from biliary/pancreatic duct(s)
Does Dr. Duncan accept my insurance?
Dr. Duncan 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. Duncan accept in Lewistown, PA?
Dr. Duncan in Lewistown, PA accepts plans from many carriers. While this list is updated regularly, it is not a guarantee of coverage.
Top Insurances
All Other Third Party
Cigna Group
CVS Health (formerly Aetna)
Everence Financial
Highmark Health
Humana
Medicare
State of Pennsylvania
UnitedHealth Group
Unknown
View All Insurances
Where is Dr. Duncan's office located?
What is Dr. Duncan's NPI number?An National Provider Identifier (NPI) is a unique ID number that identifies doctors and healthcare providers nationwide.
Dr. Duncan's National Provider Identifier (NPI) number is 1215037312.
What common questions do patients ask about Dr. Duncan?
Here are answers to patients Frequently Asked Questions (FAQ’s) about Dr. Duncan
What is Dr. Marten Duncan's specialty?
Dr. Duncan is a Gastroenterologist near Lewistown, PA.
What does a Gastroenterologist do?
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.
Is this Dr. Marten Duncan affiliated with a ranked Castle Connolly Top Hospital?
Yes, Dr. Duncan is affiliated with Geisinger-Lewistown Hospital, Geisinger Medical Center, Mount Nittany Medical Center, Upmc Harrisburg, Indiana Regional Medical Center which are a Castle Connolly Top Hospitals. 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 Gastroenterologist?: Guides for symptoms, conditions, and treatments
Understand your symptoms and know when it’s time to see a Gastroenterologist. 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 Marten Duncan accepting new patients in Lewistown, PA?
Yes, Dr. Marten Duncan is accepting new patients at this time.
Does Dr. Marten Duncan offer online booking?
Please contact Dr. Duncan's office for information about online booking, telehealth, or to schedule an appointment.
How can I make an appointment with Marten Duncan?
Please contact Dr. Duncan's office for information regarding telehealth appointment availability or for scheduling assistance.
Which board certifications does Dr. Marten Duncan have?
Dr. Marten Duncan is certified by the American Board of Internal Medicine.
Other Gastroenterologist Near Lewistown, PA
BC
Gastroenterologist
Accepting patientsDr. Brandon Craft, MD is a Gastroenterologist, who primarily practices in Lewistown, PA with 2 additional practice locations.
Lewistown, PA
DS
Gastroenterologist
Accepting patientsDr. Donald Schneider, MD is a Gastroenterologist, who primarily practices in Clearfield, PA with 2 additional practice locations. He has been practicing for over 28 years and is board certified.
Clearfield, PA
Gastroenterologist
Accepting patientsDr. Irphan Gaslightwala, MD is a Gastroenterologist, who primarily practices in Port Matilda, PA with 2 additional practice locations. He has been practicing for over 19 years.
Port Matilda, PA