Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Douglas Mark Hackman, D.C.
Chiropractor in Irvine, CA · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1528139896
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Registry record
Entity type Individual (Type 1)
Name Dr. Douglas Mark Hackman
Credential D.C.
Sex Male
Practice address 6 Venture, Suite #115, Irvine, CA, 92618
Phone (949) 559-6030
Fax (949) 559-6037
Enumeration date Nov 10, 2006
Last updated in NPPES Mar 25, 2013
Taxonomy & licenses
DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders.
About the DC credential
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.
Frequently asked questions
What specialty is Douglas Hackman?
Douglas Hackman is registered in NPPES with the primary taxonomy of Chiropractor. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2013-03-25.