Ofer Fass, MD

NPI 1154856714ActiveIndividual· Internal Medicine, Gastroenterology· Chicago, IL

Internal Medicine, Gastroenterology (MD) in Chicago, Illinois, trained at Harvard Medical School (class of 2017). Mostly services rather than prescriptions: Medicare paid $2,937 for 19 patients in 2024, with only 21 Part D claims. Capsovision, Inc. was the largest of 2 companies reporting payments in 2025, $3,329 in all, mostly consulting fees.

Overview

NPI	1154856714
Status	Active
Entity type	Individual
Credential	MD
Sole proprietor	No
NPI issued	Apr 20, 2017
Last updated in NPPES	Dec 17, 2024
Certified by provider	Dec 17, 2024

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine, Gastroenterology Primary	207RG0100X	036170527	IL
Internal Medicine	207R00000X	298903	NY

About license numbers in NPPES

Exclusion screening

List	Result	Details
HHS-OIG LEIE · Oct 9, 2026	No match	Checked by NPI and by name + state
North Carolina Medicaid · Nov 10, 2026	No match	—
New York OMIG · Nov 10, 2026	No match	—
Ohio Medicaid · Nov 10, 2026	No match	—
Pennsylvania Medicheck · Nov 10, 2026	No match	—
Washington HCA · Nov 10, 2026	No match	—

Official OIG search · How matching works ·Bulk check a roster

Medicare

Enrollment (PECOS)	Enrolled Practitioner - Gastroenterology (IL); Practitioner - Internal Medicine (NY)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	19
Services billed	29 across 8 procedure codes
Paid by Medicare	$2,937

Part D prescriptions in 2024

Prescriptions (claims)	21 · 40 30-day fills
Patients	17
Total drug cost	$908.60
Generic share	95% of claims

Medicare sources and data years

Education and affiliations

Medical school	Harvard Medical School
Graduation year	2017
Medicare specialty	Gastroenterology
Secondary specialties	Internal Medicine
Telehealth	Offers telehealth