NPPES file of Aug 9, 2026

Kathleen Mary O'Connor, MSW, LICSW

Clinical Social Worker · Holyoke, MA

Kathleen Mary O'Connor, MSW, LICSW is a clinical social worker with a practice address in Holyoke, Massachusetts, and NPI 1770728776, issued on Dec 5, 2008. Check the license (Massachusetts 121635, 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, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1770728776
Name
Kathleen Mary O'Connor
Credential
MSW, LICSW
Primary taxonomy
Clinical Social Worker 1041C0700X
License numbers
121635 MA
I.0500038 OH
34005314A IN
Self-reported in NPPES; status is on the state search
Practice location
49 Gilman St, Holyoke, MA 01040
Phone
(413) 654-6343
Enumerated
Dec 5, 2008
Record last updated
Feb 8, 2023
Medicaid ID
110148700A MA
Medicare enrollment
Enrolled (PECOS I20221228000214); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Verify Kathleen Mary O'Connor 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 121635
    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.

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Bills Medicare through one group practice

  1. Boston Neurobehavioral Associates, LLCNew Bedford, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Kathleen Mary O'Connor among 17,815 clinical social worker records in Massachusetts

Kathleen Mary O'Connor, MSW, LICSW is one of 17,815 clinical social worker records with a practice address in Massachusetts. 8% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 30% of them.

  • NPI issued2008 · 30% of these records are older, 66% newer
  • In a Medicare fileYes · 8% of these records are
  • In the CMS Doctors and Clinicians fileYes · 17% of these records are
  • Graduated2002 · median 2004 among the 3,059 with a school on file
  • Record last updated2023 · 68% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 1041C0700X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

146 clinical social worker records list a practice address in Holyoke

They are 146 of the 1,961 NPPES records with a practice address in Holyoke, and 17,815 clinical social worker records in Massachusetts.

The 8 clinical social worker records with the nearest ZIP codes

  1. Theresa Cain, MSWHolyoke, MA 010401831282011
  2. Karen Darley, LCSW, LICSWHolyoke, MA 010401033213533
  3. Beth Eisenberg, LICSWHolyoke, MA 010401972675361
  4. Theresa Hammond, MSWHolyoke, MA 010401508823527
  5. Annie Lapensee, LICSWHolyoke, MA 010401043390784
  6. Jane Laskey, MSW, LICSWHolyoke, MA 010401750454039
  7. Joan Lesser, LICSW, PHDHolyoke, MA 010401811068968
  8. Aimee Letson, LICSWHolyoke, MA 010401184716292

Common questions

What is Kathleen Mary O'Connor, MSW, LICSW's NPI number?

Kathleen Mary O'Connor, MSW, LICSW's National Provider Identifier (NPI) is 1770728776, issued on Dec 5, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Kathleen Mary O'Connor, MSW, LICSW located?

The NPPES record lists a practice address at 49 Gilman St, Holyoke, MA, 01040. Phone: (413) 654-6343. Providers update this record themselves, so call before visiting.

How can I verify Kathleen Mary O'Connor, MSW, LICSW's license?

NPPES lists Massachusetts license number 121635, 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), file of Aug 9, 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.

Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.