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

Dr. Ernest N Kaplan, M.D.

Specialist in Palo Alto, CA · enumerated 2006.

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

National Provider Identifier

1134283625

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Registry record

Entity type Individual (Type 1)

Name Dr. Ernest N Kaplan

Credential M.D.

Sex Male

Practice address Palo Alto, CA, 94306

Phone (650) 327-5653

Fax (650) 327-5107

Enumeration date Dec 20, 2006

Last updated in NPPES Mar 7, 2023

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

Taxonomy & licenses

174400000X Specialist Other Service Providers · License A21606 (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
A21606	Other	CA	STATE LICENSE

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

Is NPI 1134283625 active?

Yes, as of the latest NPPES snapshot, NPI 1134283625 is active (record last updated 2023-03-07).

How do I verify Ernest Kaplan's NPI record?

Cross-check NPI 1134283625 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

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Seung Kim Plastic Surgery Physician · Palo Alto, CA NPI 1962532812 Plastic Surgery Center LLC Ambulatory Surgical Clinic/Center · Palo Alto, CA NPI 1477675841 Ernest N Kaplan, MD, Inc. Plastic Surgery Physician · Palo Alto, CA NPI 1801122924 Duet Plastic Surgery, A Medical Corporation Plastic Surgery Physician · Palo Alto, CA NPI 1548579493

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2023-03-07.