NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum Sole proprietor

Dr. William Fish Marsteller III, D.C.

Chiropractor in Centerville, OH · enumerated 2005 · practices at Centerville Chiropractic I.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1548252893

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Registry record

Entity type Individual (Type 1)
Name Dr. William Fish Marsteller III
Credential D.C.
Sex Male
Practice address Centerville, OH, 45458
Fax (937) 433-2618
Enumeration date Aug 22, 2005
Last updated in NPPES Jul 8, 2007

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

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License 999 (OH) Primary
DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC credential

Other identifiers

Identifier Type State Issuer
9503227001 Other OH CIGNA
000000010694 Other OH ANTHEM BC/BS PIN
0660735 Medicaid OH -
311072809 1211 Other OH ANTHEM ADVANTAGE
311072809-00 Other OH OHIO BWC

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.

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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 Marsteller?
William Marsteller 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.