Registry data as of Aug 27, 2026

Brendan Riordan, D.C.

Chiropractor · Norwell, MA

Brendan Riordan, D.C. is a chiropractor with a practice address in Norwell, Massachusetts, and NPI 1003158734, issued on Mar 20, 2013. Check the license (Massachusetts 3400, as entered in NPPES) with the Massachusetts board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, loaded Aug 27, 2026 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1003158734
Name
Brendan Riordan
Credential
D.C.
Primary taxonomy
Chiropractor 111N00000X
License number
3400 MA
Self-reported in NPPES; status is on the state search
Practice location
339 Washington St, Norwell, MA 02061
Phone
(781) 659-2104
Enumerated
Mar 20, 2013
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 339 Washington St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Amanda Halstead, D.C.Chiropractor1952674970

Verify Brendan Riordan in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
    Search for license 3400
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS, AOA, NCCPA, AANPNot checked
Find the Massachusetts license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

9 chiropractor records list a Norwell practice address

They are 9 of the 981 NPPES records with a Norwell practice address, and 1,570 chiropractor records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other chiropractor records in Massachusetts

  1. Ibrahim Abdulmassih, D.C.Worcester, MA1740329317
  2. Susan Aberle, D.C.Falmouth, MA1548453475
  3. Michael Abgrab, D.C.Fall River, MA1184773814
  4. Marty Abrams, MA, DCSharon, MA1356343305
  5. Joan Accuosti, D.C.Pittsfield, MA1144292509
  6. Erin Acevedo, D.C.Beverly, MA1780741769
  7. Elisa Adams, D.C.Lexington, MA1194887794
  8. James Adams, D.C.Plymouth, MA1598978777
  9. Jeffrey Adams, D.C.Marshfield, MA1386764041
  10. Lauren Adelizi, DCWellesley, MA1255510384

Common questions

What is Brendan Riordan, D.C.'s NPI number?

Brendan Riordan, D.C.'s National Provider Identifier (NPI) is 1003158734, issued on Mar 20, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Brendan Riordan, D.C. located?

The NPPES record lists a practice address at 339 Washington St, Norwell, MA, 02061. Phone: (781) 659-2104. Providers update this record themselves, so call before visiting.

How can I verify Brendan Riordan, D.C.'s license?

NPPES lists Massachusetts license number 3400, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

Source: CMS National Plan and Provider Enumeration System (NPPES), loaded Aug 27, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. An NPI identifies who bills; it is not a license.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.