NPI Portal NPI Lookup & Verification

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

David Mark Majercin, DC

Chiropractor in Sarasota, FL · enumerated 2006 · practices at Sarasota Medical Clinic PA.

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

National Provider Identifier

1609895556

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Registry record

Entity type Individual (Type 1)
Name David Mark Majercin
Credential DC
Sex Male
Practice address Sarasota, FL, 34233
Phone (941) 921-5741
Fax (941) 927-5746
Enumeration date Jul 19, 2006
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 CH7308 (FL) 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
55779 Other FL BLUE CROSS BLUE SHIELD

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

How do I verify David Majercin's NPI record?
Cross-check NPI 1609895556 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1609895556 active?
Yes, as of the latest NPPES snapshot, NPI 1609895556 is active (record last updated 2007-07-08).

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