Registry data as of Aug 27, 2026

Mariel Bitter, LCSW

Clinical Social Worker · Hyannis, MA

Mariel Bitter, LCSW is a clinical social worker with a practice address in Hyannis, Massachusetts, and NPI 1568106185, issued on Apr 21, 2022. Check the license (Massachusetts 225640, as entered in NPPES) with the Massachusetts board that licenses this profession; the Medicare figures below come from public CMS files.

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

NPPES recordas of Aug 27, 2026
1568106185
Name
Mariel Bitter
Credential
LCSW
Primary taxonomy
Clinical Social Worker 1041C0700X
License number
225640 MA
Self-reported in NPPES; status is on the state search
Practice location
94 Main St, Hyannis, MA 02601
Phone
(774) 487-7934
Enumerated
Apr 21, 2022
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 94 Main St

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

  1. Wanda Aponte, BSCase Manager/Care Coordinator1730901695
  2. John Barboza, RNCommunity Health Registered Nurse1619240181
  3. Jutta BoliverNurse Practitioner1942145396
  4. Meaghan BradyStudent in an Organized Health Care Education/Training Program1194322594
  5. Margaret BurkeAdministrator Registered Nurse1881255396
  6. Joanne CallahanFamily Nurse Practitioner1205904307

Verify Mariel Bitter 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 225640
    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.

One hospital or facility affiliation

  1. Northeast Health Services LLCHyannis, MA

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

119 clinical social worker records list a Hyannis practice address

They are 119 of the 1,457 NPPES records with a Hyannis practice address, and 16,942 clinical social worker records in Massachusetts.

Other clinical social worker records in Massachusetts

  1. Andrew Aaron, LICSWNew Bedford, MA1053477885
  2. Cynthia AaronFall River, MA1407258676
  3. Karla Abad, LCSWLynn, MA1598577470
  4. Amy Abair, LICSWBoston, MA1972821858
  5. Nicole Abair, LCSWLexington, MA1386590859
  6. Stephanie Abate, LICSWAmherst, MA1669580973
  7. Lynn Abbey, LICSWFall River, MA1437189248
  8. Bernard Abbot, MSWBoston, MA1861913188
  9. Mark Abbott, MSW, LICSWEast Falmouth, MA1134461445
  10. Paul Abbott, LICSWNorthampton, MA1558302398

Common questions

What is Mariel Bitter, LCSW's NPI number?

Mariel Bitter, LCSW's National Provider Identifier (NPI) is 1568106185, issued on Apr 21, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Mariel Bitter, LCSW located?

The NPPES record lists a practice address at 94 Main St, Hyannis, MA, 02601. Phone: (774) 487-7934. Providers update this record themselves, so call before visiting.

How can I verify Mariel Bitter, LCSW's license?

NPPES lists Massachusetts license number 225640, 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. Medicare files from data.cms.gov. 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.