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Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Mr. Mark D. Callender, P.A.

Physician Assistant in Slidell, LA · enumerated 2007 · practices at E. M. Dimitri, D.O. Pmc.

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

National Provider Identifier

1942406616

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Registry record

Entity type Individual (Type 1)
Name Mr. Mark D. Callender
Credential P.A.
Sex Male
Practice address 2104 Gause Blvd W, Ste. A, Slidell, LA, 70460
Phone (985) 643-4575
Fax (985) 643-4513
Enumeration date Jun 21, 2007
Last updated in NPPES Oct 15, 2015

Taxonomy & licenses

363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License P.A.A10540 (LA) Primary
PA · Physician Assistant: A licensed clinician who practices medicine in collaboration with physicians, trained in a graduate PA program. About the PA 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

How do I verify Mark Callender's NPI record?
Cross-check NPI 1942406616 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1942406616 active?
Yes, as of the latest NPPES snapshot, NPI 1942406616 is active (record last updated 2015-10-15).

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2015-10-15.