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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mark L Legnola, D.C.

Chiropractor in Blue Bell, PA · enumerated 2005 · practices at Trinity Couseling Service.

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

National Provider Identifier

1982606752

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Registry record

Entity type Individual (Type 1)
Name Mark L Legnola
Credential D.C.
Sex Male
Practice address 1717 Swede Rd, Suite 106, Blue Bell, PA, 19422
Phone (484) 688-0664
Fax (484) 688-0667
Enumeration date Aug 11, 2005
Last updated in NPPES Sep 19, 2017

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License DC006991-L (PA) 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
2457323 Other PA AETNA PIN
0395472000 Other PA KEYSTONE

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 Mark Legnola?
Mark Legnola 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 2017-09-19.