Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Lorraine N Tortosa, M.D.

Internal Medicine Physician in Yuba City, CA · enumerated 2006.

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

National Provider Identifier

1659389708

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Registry record

Entity type Individual (Type 1)

Name Lorraine N Tortosa

Credential M.D.

Sex Female

Practice address 480 Plumas Blvd, Yuba City, CA, 95991

Phone (530) 749-3520

Fax (530) 749-3624

Enumeration date Aug 4, 2006

Last updated in NPPES Mar 7, 2023

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License G33741 (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
P00779829	Other	CA	RAILROAD MEDICARE
00G337410	Medicaid	CA	-

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 Lorraine Tortosa?

The National Provider Identifier (NPI) for Lorraine Tortosa is 1659389708, a Type 1 (individual) record in the CMS NPPES registry.

Where does Lorraine Tortosa practice?

The practice location on file with NPPES is in Yuba City, 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 2023-03-07.