Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gregorio Ramirez Loyola

Addiction (Substance Use Disorder) Counselor in South San Francisco, CA · enumerated 2008 · practices at The Latino Commission.

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

National Provider Identifier

1245481829

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Registry record

Entity type Individual (Type 1)

Name Gregorio Ramirez Loyola

Sex Male

Practice address 301 Grand Ave, Suite 301, South San Francisco, CA, 94080

Phone (650) 244-1444

Fax (415) 337-4067

Enumeration date Oct 1, 2008

Last updated in NPPES Oct 1, 2008

Taxonomy & licenses

101YA0400X Addiction (Substance Use Disorder) Counselor Behavioral Health & Social Service Providers Primary

Other identifiers

Identifier	Type	State	Issuer
QUETZAL	Other	CA	38472
QUETZAL	Other	CA	97037

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 1245481829 active?

Yes, as of the latest NPPES snapshot, NPI 1245481829 is active (record last updated 2008-10-01).

How do I verify Gregorio Ramirez Loyola's NPI record?

Cross-check NPI 1245481829 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 2008-10-01.