Toby J. Katz, M.D.

NPI 1336159052ActiveIndividual· Internal Medicine, Gastroenterology· Monterey, CA

Internal Medicine, Gastroenterology (M.D.) in Monterey, California, trained at University of California, San Francisco School of Medicine (class of 1988). In 2024 Medicare paid $180,825 for 860 patients, and Part D covered 965 of their prescriptions, 86% of them generic. Abbvie Inc. was the largest of 8 companies reporting payments in 2025, $721.63 in all, mostly food and beverage.

Overview

NPI	1336159052
Status	Active
Entity type	Individual
Credential	M.D.
Sole proprietor	No
NPI issued	Aug 8, 2006
Last updated in NPPES	Dec 18, 2020
Certified by provider	Dec 18, 2020

Specialties and licenses

Taxonomy	Code	License	State
Internal Medicine, Gastroenterology Primary	207RG0100X	G67345	CA
Internal Medicine, Gastroenterology	207RG0100X	G67354	CA

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 (CA)
Accepts assignment	Yes (participating)

Medicare services in 2024

Medicare patients	860
Services billed	1,508 across 43 procedure codes
Paid by Medicare	$180,825

Part D prescriptions in 2024

Prescriptions (claims)	965 · 1,682 30-day fills
Patients	461
Total drug cost	$153,111
Generic share	86% of claims

Medicare sources and data years

Education and affiliations

Medical school	University of California, San Francisco School of Medicine
Graduation year	1988
Medicare specialty	Gastroenterology
Telehealth	Offers telehealth