Dr. J. Gregory Laven, DC

Dr. J. Gregory Laven is a Chiropractor provider (Chiropractor) practicing in Placentia, CA, registered in the NPPES registry with NPI 1164578852 since 2007. The credential DC stands for Doctor of Chiropractic.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI	1164578852
Entity type	Individual (Type 1)
Name	Dr. J. Gregory Laven
Credential	DC
Sex	Male
Practice address	Placentia, CA, 92870
Phone	7145287500
Fax	7145288815
Enumeration date	2007-01-26
Last updated in NPPES	2007-07-08

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

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
111N00000X	Chiropractor	Primary	20676	CA

DC — Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential

Copy-ready billing details

Provider: J. Gregory Laven, DC
NPI: 1164578852
Taxonomy: 111N00000X (Chiropractor)
Address: Placentia, CA, 92870

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1881212835	William De Board	Individual	Chiropractor	Placentia, CA

Verify this record

Cross-check NPI 1164578852 against the authoritative CMS record: view Dr. J. Gregory Laven on the official NPPES registry .

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 or validate an NPI number.

Frequently asked questions

What is the NPI number for J. Gregory Laven?

The National Provider Identifier (NPI) for J. Gregory Laven is 1164578852, a Type 1 (individual) record in the CMS NPPES registry.

Where does J. Gregory Laven practice?

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

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-07-08.