Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Guillermo Ramirez

Hospitalist Physician in Santa Cruz, CA · enumerated 2013.

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

National Provider Identifier

1740623883

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Registry record

Entity type Individual (Type 1)

Name Guillermo Ramirez

Sex Male

Practice address 1661 Soquel Dr, Santa Cruz, CA, 95065

Phone (831) 460-6042

Enumeration date Apr 8, 2013

Last updated in NPPES Feb 26, 2021

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License A135768 (CA) Secondary

208M00000X Hospitalist Physician Allopathic & Osteopathic Physicians · License A135768 (CA) Primary

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 1740623883 active?

Yes, as of the latest NPPES snapshot, NPI 1740623883 is active (record last updated 2021-02-26).

How do I verify Guillermo Ramirez's NPI record?

Cross-check NPI 1740623883 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-02-26.