Registry data as of Aug 27, 2026

Mark Deleon Kellam

Counselor · Holbrook, MA

Mark Deleon Kellam is a counselor with a practice address in Holbrook, Massachusetts, and NPI 1659887735, issued on Dec 27, 2017. Check the license 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
1659887735
Name
Mark Deleon Kellam
Primary taxonomy
Counselor 101Y00000X
Practice location
110 Longmeadow Dr, Holbrook, MA 02343
Phone
(978) 578-6346
Enumerated
Dec 27, 2017
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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Verify Mark Deleon Kellam in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this professionCheck 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.

2 counselor records list a Holbrook practice address

They are 2 of the 89 NPPES records with a Holbrook practice address, and 9,397 counselor records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other counselor records in Massachusetts

  1. Jennifer Aballo, M.A.Methuen, MA1144657057
  2. Griselle AbarcaMilford, MA1205605177
  3. Lindsey AbateHaverhill, MA1043018799
  4. Zachary AbbottGloucester, MA1396624789
  5. Felicia AbbuahAllston, MA1841729266
  6. Mudar Abdul-RazakSpringfield, MA1205576667
  7. Aneesah AbdullahRoxbury, MA1962749218
  8. Asha AbdullahiRoxbury, MA1376015958
  9. Muhammad Abdur-Razzaq, ED MMattapan, MA1750667465
  10. Samantha AbeidBoston, MA1518612035

Common questions

What is Mark Deleon Kellam's NPI number?

Mark Deleon Kellam's National Provider Identifier (NPI) is 1659887735, issued on Dec 27, 2017. An NPI identifies a provider in billing; it is not a license.

Where is Mark Deleon Kellam located?

The NPPES record lists a practice address at 110 Longmeadow Dr, Holbrook, MA, 02343. Phone: (978) 578-6346. Providers update this record themselves, so call before visiting.

How can I verify Mark Deleon Kellam's license?

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.