Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Robert T. Keszler, M.D.

Anesthesiology Physician in Monterey, CA · enumerated 2006.

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

National Provider Identifier

1417962366

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Registry record

Entity type Individual (Type 1)

Name Robert T. Keszler

Credential M.D.

Sex Male

Practice address Monterey, CA, 93940

Phone (831) 624-5311

Fax (916) 984-7392

Enumeration date Jul 29, 2006

Last updated in NPPES Jan 31, 2017

Street address withheld: NPPES sole-proprietor addresses can be home addresses. See our data policy.

Taxonomy & licenses

207L00000X Anesthesiology Physician Allopathic & Osteopathic Physicians · License A70896 (CA) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
00A708960	Medicaid	CA	-
00A708960	Other	CA	BLUE SHIELD

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

What is the NPI number for Robert Keszler?

The National Provider Identifier (NPI) for Robert Keszler is 1417962366, a Type 1 (individual) record in the CMS NPPES registry.

Where does Robert Keszler practice?

The practice location on file with NPPES is in Monterey, CA. Providers can have multiple locations; NPPES lists the primary practice address.

Other providers at this practice address

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2017-01-31.