Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Zachary Wayne Mccallister, D.C.
Chiropractor in Marietta, OH · enumerated 2010.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1821399858
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Registry record
Entity type Individual (Type 1)
Name Dr. Zachary Wayne Mccallister
Credential D.C.
Sex Male
Practice address 325 4th St, Suite B, Marietta, OH, 45750
Phone (740) 376-9944
Fax (740) 376-0094
Enumeration date Nov 8, 2010
Last updated in NPPES Nov 8, 2010
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 is the NPI number for Zachary Mccallister?
The National Provider Identifier (NPI) for Zachary Mccallister is 1821399858, a Type 1 (individual) record in the CMS NPPES registry.
Where does Zachary Mccallister practice?
The practice location on file with NPPES is in Marietta, OH. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Jeffrey Dexter Chiropractor · Marietta, OH NPI 1902883416 Kristopher Pisczek Chiropractor · Marietta, OH NPI 1538267257 Dexter Chiropractic Chiropractor · Marietta, OH NPI 1396888145 Marietta Health and Wellness Center LLC Family Medicine Physician · Marietta, OH NPI 1558695411 Jeffrey Dexter Chiropractor · Marietta, OH NPI 1952006405
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2010-11-08.