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Mark Douglas Wellman, PNP

Pediatric Nurse Practitioner in Concord, MA · enumerated 2005.

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

National Provider Identifier

1831171255

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Registry record

Entity type Individual (Type 1)
Name Mark Douglas Wellman
Credential PNP
Sex Male
Practice address 101 Thoreau St, Concord, MA, 01742
Phone (978) 369-9401
Enumeration date Nov 20, 2005
Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

363LP0200X Pediatric Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 124639 (MA) Primary

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

Where does Mark Wellman practice?
The practice location on file with NPPES is in Concord, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Mark Wellman?
The National Provider Identifier (NPI) for Mark Wellman is 1831171255, a Type 1 (individual) record in the CMS NPPES registry.

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