NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Toby J Katz, M.D.

Gastroenterology Physician in Monterey, CA · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1336159052

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Dr. Toby J Katz
Credential M.D.
Sex Male
Practice address 23 Upper Ragsdale Dr, Suite 200, Monterey, CA, 93940
Phone (831) 375-3577
Fax (831) 375-1478
Enumeration date Aug 8, 2006
Last updated in NPPES Dec 18, 2020

Taxonomy & licenses

207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License G67354 (CA) Secondary
207RG0100X Gastroenterology Physician Allopathic & Osteopathic Physicians · License G67345 (CA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Toby Katz's NPI record?
Cross-check NPI 1336159052 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1336159052 active?
Yes, as of the latest NPPES snapshot, NPI 1336159052 is active (record last updated 2020-12-18).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-12-18.