NPI Portal NPI Lookup & Verification

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

Dr. David Wj Cretsinger, D.C.

Chiropractor in Amherst, NH · enumerated 2008 · practices at Spinal Corrective Center.

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

National Provider Identifier

1114191830

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Registry record

Entity type Individual (Type 1)
Name Dr. David Wj Cretsinger
Credential D.C.
Sex Male
Practice address Amherst, NH, 03031
Phone (603) 673-5600
Fax (603) 673-6688
Enumeration date Apr 14, 2008
Last updated in NPPES Apr 14, 2008

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

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License 240-0496 (NH) Primary
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.

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Frequently asked questions

What specialty is David Cretsinger?
David Cretsinger 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.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-04-14.