Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Laurence J.S. Weekes, M.D.

Specialist in Simi Valley, CA · enumerated 2006.

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

National Provider Identifier

1316027600

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Registry record

Entity type Individual (Type 1)

Name Dr. Laurence J.S. Weekes

Credential M.D.

Sex Male

Practice address 2650 Jones Way, Suite 2, Simi Valley, CA, 93065

Phone (805) 577-7977

Fax (805) 577-0745

Enumeration date Oct 17, 2006

Last updated in NPPES Sep 12, 2013

Taxonomy & licenses

174400000X Specialist Other Service Providers · License G28484 (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
00G284840	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 Laurence Weekes?

The National Provider Identifier (NPI) for Laurence Weekes is 1316027600, a Type 1 (individual) record in the CMS NPPES registry.

Where does Laurence Weekes practice?

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

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-09-12.