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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 30 days.

MARK DOUGLAS WELLMAN PNP
NPI 1831171255
Nurse Practitioner - Pediatrics in Concord, MA

Active since November 20, 2005
101 THOREAU ST, CONCORD, MA 01742(978) 369-9401 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: July 26, 2026.

About Mark Douglas Wellman Pnp NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MARK DOUGLAS WELLMAN PNP (NPI 1831171255) is an individual pediatrics provider in Concord, Massachusetts, licensed in Massachusetts (124639) and active in the NPI registry since November 2005.

NPPES Registry Identity

NPI1831171255
Entity TypeIndividualMale
Primary Taxonomy363LP0200X
Provider Legal NameMARK DOUGLAS WELLMANCredential: PNP
Location Address101 THOREAU STConcord, MA 01742-2443
Mailing Address4 Royce LnWestford, MA 01886-4015 · (978) 692-9078
Phone(978) 369-9401
Sole ProprietorNo
Enumeration DateNovember 20, 2005
Last NPPES UpdateJuly 13, 2026
✔ NPI 1831171255 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · PediatricsPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LP0200X
License✔ Licensed in MA · 124639
101 THOREAU ST, Concord, MA 01742
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Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

AISLING GAUGHAN, M.D., P.C.
Pediatrics
101 THOREAU ST
CONCORD, MA 01742
Middlesex County (978) 369-9401
WALDEN POND PEDIATRICS, PC
Pediatrics
101 THOREAU ST
CONCORD, MA 01742
Middlesex County (978) 369-9401
AISLING GAUGHAN M.D., F.A.A.P.
Pediatrics
101 THOREAU ST
CONCORD, MA 01742
Middlesex County (978) 369-9401
DR. ESHITA MINESH BAKSHI D.O.
Pediatrics
101 THOREAU ST
CONCORD, MA 01742
Middlesex County (978) 369-9401

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Mark Wellman's NPI number?

The NPI number for Mark Wellman is 1831171255. It was assigned to this individual provider in the NPPES registry on November 20, 2005.

Where is Mark Wellman located?

Mark Wellman practices at 101 Thoreau St, Concord, MA 01742. The listed phone number is (978) 369-9401.

What is Mark Wellman's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Pediatrics, with taxonomy code 363LP0200X.

When was this NPI record last updated?

The NPPES record for Mark Wellman was last updated on July 13, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.