NPI Portal NPI Lookup & Verification

Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Mark D. Friedman

Neurology Chiropractor in Swampscott, MA · enumerated 2014 · authorized official Mark Friedman, Owner/Clinician.

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

National Provider Identifier

1134541493

Verified

See something wrong? Report a correction

Registry record

Entity type Organization (Type 2)
Legal business name Mark D. Friedman
Other name <Unavail>
Practice address 70 New Ocean St, Swampscott, MA, 01907
Enumeration date Jan 6, 2014
Last updated in NPPES Jan 6, 2014

Taxonomy & classification

111NN0400X Neurology Chiropractor Chiropractic Providers · License 1452 (MA) Primary
225100000X Physical Therapist Respiratory, Developmental, Rehabilitative and Restorative Service Providers · License AH-11085 (MA) Secondary

Authorized official

Name Mark Friedman
Title Owner/Clinician

Other identifiers

Identifier Type State Issuer
110085322 Medicaid MA -

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.

Read the full guide → Validate an NPI →

Frequently asked questions

What type of organization is Mark D. Friedman?
Mark D. Friedman is registered in NPPES as a Neurology Chiropractor (its primary provider taxonomy).
What is a Type 2 NPI?
A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

Providers at this address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-01-06.