Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. Mark P. Ainslie, D.C.
Chiropractor in Spokane, WA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1528044203
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Registry record
Entity type Individual (Type 1)
Name Mr. Mark P. Ainslie
Credential D.C.
Sex Male
Practice address 3809 N Monroe St, Spokane, WA, 99205
Phone (509) 326-3795
Fax (509) 325-7418
Enumeration date Dec 15, 2005
Last updated in NPPES Nov 26, 2007
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
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 Mark Ainslie?
Mark Ainslie 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.
Other providers at this practice address
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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-11-26.