Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mark John Stewart, MDIV, MST
Behavior Analyst in York, PA · enumerated 2009.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1922232727
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Registry record
Entity type Individual (Type 1)
Name Mark John Stewart
Credential MDIV, MST
Sex Male
Practice address 128 North George Street, York, PA, 17401
Phone (717) 854-6800
Fax (717) 846-0005
Enumeration date May 7, 2009
Last updated in NPPES May 7, 2009
Taxonomy & licenses
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.
Frequently asked questions
Is NPI 1922232727 active?
Yes, as of the latest NPPES snapshot, NPI 1922232727 is active (record last updated 2009-05-07).
How do I verify Mark Stewart's NPI record?
Cross-check NPI 1922232727 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Other providers at this practice address
Browse all → Gregory Wentz Counselor · York, PA NPI 1003005851 Elise Purzycki Behavior Analyst · York, PA NPI 1356575278 Sara Angle Behavior Analyst · York, PA NPI 1346474269 Courtney Markel Behavior Analyst · York, PA NPI 1790919587 Clarissa Linde Behavior Analyst · York, PA NPI 1871727768 Heather Durange Behavior Analyst · York, PA NPI 1316171200 Tiffany Smeltzer Behavior Analyst · York, PA NPI 1437383221 Alisha Wilson Behavior Analyst · York, PA NPI 1245464031
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2009-05-07.