Name: Dr. Nir Modiano

Specialty: Gastroenterology

Qualification/Board Certification: Medical Doctor, Internal Medicine Residency, Gastroenterology Fellowship

Affiliation(s): OHSU Hospital, Portland VA Medical Center, University Professional Services

Locations: Portland, Oregon

Languages Spoken: English

Accepting New Patients: Not listed in the provided profile

NPI Number: 1073790788

About the Doctor

Dr. Nir Modiano is a highly accomplished and fellowship-trained gastroenterologist with over 20 years of clinical experience, practicing in Portland, Oregon. He earned his medical degree from Yale School of Medicine, one of the nation’s most prestigious medical institutions, and went on to complete his Internal Medicine residency at Stanford Health Care — Stanford University from 2005 to 2008, followed by a Gastroenterology fellowship at UCLA David Geffen School of Medicine/UCLA Medical Center from 2009 to 2012. This exceptional training pathway — spanning Yale, Stanford, and UCLA — reflects an elite academic and clinical foundation that distinguishes Dr. Modiano as a leading specialist in his field.

Dr. Modiano practices at the OHSU Digestive Health Center under University Professional Services and is affiliated with two highly regarded medical institutions: OHSU Hospital, nationally ranked number 36 in Gastroenterology and GI Surgery and recognized as High Performing in Colon Cancer Surgery, and the Portland VA Medical Center. His subspecialty in Inflammatory Bowel Disease (IBD) reflects a focused clinical and research interest in the diagnosis and management of complex immune-mediated gastrointestinal conditions including Crohn’s disease and ulcerative colitis. His treatment volumes in colonoscopy, upper GI endoscopy, and chronic inflammatory bowel disease consistently exceed the state average, underscoring both the breadth and depth of his procedural and clinical experience.

Dr. Modiano has earned a perfect 5-star patient rating based on 10 reviews and has received four Patient Awards, including the Patients’ Top Choice distinction. Patients consistently praise his thoroughness and his ability to clearly explain complex diagnoses and treatment options. He is also a prolific published researcher with an extensive list of academic publications, reflecting his ongoing contribution to advancing the science and practice of gastroenterology.

Key Highlights:

• Gastroenterologist with 21+ years of experience
• Subspecialty in Inflammatory Bowel Disease (IBD)
• Elite training at Yale School of Medicine, Stanford, and UCLA
• Affiliated with OHSU Hospital — nationally ranked in Gastroenterology and GI Surgery
• High Performing in Colon Cancer Surgery at affiliated hospital
• Perfect 5-star patient rating — Patients’ Top Choice award recipient
• Prolific published researcher in gastroenterology
• Practices at a U.S. News Best Hospital

Education & Training

• Medical School: Yale School of Medicine
• Residency: Stanford Health Care — Stanford University — Internal Medicine, 2005–2008
• Fellowship: UCLA David Geffen School of Medicine/UCLA Medical Center — Gastroenterology, 2009–2012

Medical Conditions Treated

Dr. Modiano diagnoses and manages a comprehensive range of gastrointestinal, hepatic, and digestive disorders. His areas of clinical expertise include:

• Inflammatory bowel disease (Crohn’s disease and ulcerative colitis)
• Colorectal cancer screening and polyp management
• Gastroesophageal reflux disease (GERD) and esophageal disorders
• Swallowing problems and dysphagia
• Irritable bowel syndrome (IBS)
• Fatty liver disease and hepatic conditions
• Celiac disease and malabsorption syndromes
• Gastrointestinal bleeding and hemorrhage
• Peptic ulcer disease and gastritis
• Pancreatic and gallbladder disorders
• Colon and rectal conditions requiring endoscopic evaluation
• Upper gastrointestinal tract disorders

Medical Procedures Performed

Dr. Modiano performs a comprehensive range of diagnostic and therapeutic gastrointestinal procedures, including:

• Colonoscopy and colorectal cancer screening
• Upper GI endoscopy (esophagogastroduodenoscopy — EGD)
• Endoscopic biopsy and tissue sampling
• Polyp detection and removal (polypectomy)
• Endoscopic management of gastrointestinal bleeding
• Capsule endoscopy evaluation
• Inflammatory bowel disease diagnostic workup and monitoring
• Liver function evaluation and hepatic condition assessment
• Colon cancer surveillance and follow-up endoscopy
• Advanced endoscopic therapeutic procedures
• Gastroenterology consultations and second opinions
• Biologic and immunomodulatory therapy management for IBD

Services Offered

Dr. Modiano offers a comprehensive range of gastroenterology services at the OHSU Digestive Health Center, providing patients in Portland, Oregon with access to expert-level digestive health care within one of the region’s most prestigious and nationally recognized academic medical environments. His practice is distinguished by a rigorous, evidence-based approach to diagnosis and treatment that is informed by both his elite academic training and his active engagement with current research in the field.

At the center of Dr. Modiano’s practice is his subspecialty expertise in Inflammatory Bowel Disease. He provides comprehensive evaluation, diagnosis, and long-term management for patients with Crohn’s disease and ulcerative colitis, including advanced biologic and immunomodulatory therapies that represent the current standard of care for moderate-to-severe IBD. His IBD treatment volumes consistently exceed the Oregon state average, reflecting a high-volume, experienced practice that delivers the kind of deep, condition-specific expertise that patients with complex or refractory IBD require for optimal disease management and quality of life.

Dr. Modiano also performs a high volume of colonoscopies and upper GI endoscopies, exceeding state averages in both procedures. His colonoscopy services include routine colorectal cancer screening, surveillance colonoscopy for high-risk patients, and therapeutic procedures such as polyp removal, reflecting a strong commitment to gastrointestinal cancer prevention and early detection. His affiliation with OHSU Hospital — recognized as High Performing in Colon Cancer Surgery — ensures seamless coordination of care for patients who require surgical management following endoscopic evaluation.

For patients with a broad range of other digestive conditions, including GERD, IBS, liver disease, celiac disease, and pancreatic and gallbladder disorders, Dr. Modiano provides thorough diagnostic evaluations and individualized treatment plans grounded in the latest clinical evidence. His reputation for thoroughness, clear explanations, and detailed patient education ensures that patients leave each appointment with a clear understanding of their condition and a confident path forward.

Services offered include:

• Comprehensive gastroenterology consultations and evaluations
• Colonoscopy and colorectal cancer screening
• Upper GI endoscopy and esophageal evaluation
• Polyp detection, removal, and surveillance
• Inflammatory bowel disease (IBD) diagnosis and management
• Biologic and immunomodulatory therapy for Crohn’s disease and ulcerative colitis
• Gastroesophageal reflux disease (GERD) evaluation and treatment
• Irritable bowel syndrome management and counseling
• Fatty liver disease and hepatic condition assessment
• Celiac disease diagnosis and dietary management guidance
• Gastrointestinal bleeding evaluation and endoscopic management
• Pancreatic and gallbladder disorder evaluation
• Colon cancer risk assessment and surveillance planning
• Online appointment booking

Accepted Insurances

Dr. Modiano accepts the following insurance plan. Patients are encouraged to contact the office directly to confirm coverage before scheduling an appointment.

• ID State Medicaid (Medicaid)

Practice Locations

Location 1 Address: 3485 SW Bond Avenue, OHSU Digestive Health Center at CHH2 — Mailcode OC8D, Portland, OR 97239

Phone: (503) 494-4373

Location 2: Not listed in the provided profile

Hospital Affiliations

• OHSU Hospital — Portland, OR (Nationally Ranked #36 in Gastroenterology & GI Surgery; High Performing in Colon Cancer Surgery)
• Portland VA Medical Center — Portland, OR