Mark Seitz, D.C.

Mark Seitz is a Chiropractor provider (Chiropractor) practicing in Dayton, OH, registered in the NPPES registry with NPI 1427223452 since 2008. The credential DC stands for Doctor of Chiropractic.

✓ Active NPI ✓ Valid NPI checksum

NPI	1427223452
Entity type	Individual (Type 1)
Name	Mark Seitz
Credential	D.C.
Sex	Male
Practice address	5671 FAR HILLS AVE, Dayton, OH, 45429
Phone	9374351194
Enumeration date	2008-04-30
Last updated in NPPES	2008-04-30

Taxonomy & licenses

Taxonomy code	Specialty	Primary	License	State
111N00000X	Chiropractor	Primary	3173	OH

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

Copy-ready billing details

Provider: Mark Seitz, D.C.
NPI: 1427223452
Taxonomy: 111N00000X (Chiropractor)
Address: 5671 FAR HILLS AVE, Dayton, OH, 45429

Other providers at this practice address

NPI	Name	Type	Specialty	Location
1154360972	Harry Alexander	Individual	Chiropractor	Dayton, OH
1285653873	James Alexander	Individual	Chiropractor	Dayton, OH
1518062231	Stacey Zaikoski	Individual	Pediatric Dentistry	Dayton, OH

Verify this record

Cross-check NPI 1427223452 against the authoritative CMS record: view Mark Seitz 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 specialty is Mark Seitz?

Mark Seitz 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.

Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2008-04-30.