Seymour Katz, M.D.

NPI 1255337424ActiveIndividual· Internal Medicine, Gastroenterology· Great Neck, NY

Internal Medicine, Gastroenterology (M.D.) in Great Neck, New York, trained at New York University School of Medicine (class of 1964). Their prescriptions cost Medicare Part D more than their services did: $1,320,045 for 1,050 claims, against $81,952 paid for services in 2024. Abbvie Inc. was the largest of 2 companies reporting payments in 2024, $56.50 in all, mostly food and beverage.

Overview

NPI	1255337424
Status	Active
Entity type	Individual
Credential	M.D.
Sole proprietor	No
NPI issued	Jun 22, 2005
Last updated in NPPES	Jun 20, 2024
Certified by provider	Jun 20, 2024

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine, Gastroenterology Primary	207RG0100X	094408	NY
Specialist	174400000X	094408	NY

About license numbers in NPPES

Exclusion screening

List	Result	Details
HHS-OIG LEIE · Nov 10, 2026	No match	Checked by NPI and by name + state
North Carolina Medicaid · Nov 11, 2026	No match	—
New York OMIG · Nov 11, 2026	No match	—
Ohio Medicaid · Nov 11, 2026	No match	—
Pennsylvania Medicheck · Nov 11, 2026	No match	—
Washington HCA · Nov 11, 2026	No match	—

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

Medicare

Enrollment (PECOS)	Enrolled Practitioner - Gastroenterology (NY)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	308
Services billed	1,213 across 16 procedure codes
Paid by Medicare	$81,952

Part D prescriptions in 2024

Prescriptions (claims)	1,050 · 1,950 30-day fills
Patients	275
Total drug cost	$1,320,045
Generic share	84% of claims

Medicare sources and data years

Education and affiliations

Medical school	New York University School of Medicine
Graduation year	1964
Medicare specialty	Gastroenterology
Secondary specialties	Internal Medicine
Telehealth	Offers telehealth