Dr. William J. Greene, D.C,,QME

Dr. William J. Greene is a Independent Medical Examiner Chiropractor provider (Chiropractor) practicing in Brea, CA, registered in the NPPES registry with NPI 1700072899 since 2007. The credential DC stands for Doctor of Chiropractic.

✓ Active NPI ✓ Valid NPI checksum Sole proprietor

NPI	1700072899
Entity type	Individual (Type 1)
Name	Dr. William J. Greene
Credential	D.C,,QME
Sex	Male
Practice address	Brea, CA, 92821
Phone	5627775552
Fax	7146712156
Enumeration date	2007-09-21
Last updated in NPPES	2007-09-21

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

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
111NI0013X	Independent Medical Examiner Chiropractor	Primary	DC22353	CA

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

Copy-ready billing details

Provider: William Greene, D.C,,QME
NPI: 1700072899
Taxonomy: 111NI0013X (Independent Medical Examiner Chiropractor)
Address: Brea, CA, 92821

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1376748848	Paul Heller	Individual	Chiropractor	Brea, CA

Verify this record

Cross-check NPI 1700072899 against the authoritative CMS record: view Dr. William J. Greene 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

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

What specialty is William Greene?

William Greene is registered in NPPES with the primary taxonomy of Independent Medical Examiner Chiropractor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2007-09-21.