NPPES file of Aug 9, 2026

Katherine Cortes Ambrosio, MSW

Clinical Social Worker · Williamstown, MA

Katherine Cortes Ambrosio, MSW is a clinical social worker with a practice address in Williamstown, Massachusetts, and NPI 1427824697, issued on Nov 29, 2023. Check the license (Massachusetts LISCW1142052, 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
1427824697
Name
Katherine Cortes Ambrosio
Credential
MSW
Primary taxonomy
Clinical Social Worker 1041C0700X
License number
LISCW1142052 MA
Self-reported in NPPES; status is on the state search
Practice location
86 Brodie Mountain RD, Williamstown, MA 01267
Phone
(413) 200-0454
Enumerated
Nov 29, 2023
Record last updated
Dec 15, 2025
Medicare enrollment
Enrolled (PECOS I20240510002063); accepts Medicare assignment
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 Katherine Cortes Ambrosio 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 LISCW1142052
    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. The Brien Center For Mental Health And Substance Abuse Services IncPittsfield, MA

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

Katherine Cortes Ambrosio among 17,815 clinical social worker records in Massachusetts

Katherine Cortes Ambrosio, MSW 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 2023, is newer than 90% of them.

  • NPI issued2023 · 90% of these records are older, 7% newer
  • In a Medicare fileYes · 8% of these records are
  • In the CMS Doctors and Clinicians fileYes · 17% of these records are
  • Graduated2023 · median 2004 among the 3,059 with a school on file
  • Record last updated2025 · 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).

22 clinical social worker records list a practice address in Williamstown

They are 22 of the 139 NPPES records with a practice address in Williamstown, and 17,815 clinical social worker records in Massachusetts.

The 8 clinical social worker records with the nearest ZIP codes

  1. Mary Anne Belouin, LICSWWilliamstown, MA 012671376712034
  2. Nurit Berman, LICSW, SOCIAL WORKERWilliamstown, MA 012671275679136
  3. Patricia Carter, LICSWWilliamstown, MA 012671194734178
  4. Barbara Cece, LICSWWilliamstown, MA 012671316053481
  5. Megan Clarke, MSW, LICSWWilliamstown, MA 012671568971661
  6. Paul Gitterman, LICSWWilliamstown, MA 012671538242193
  7. John Green, MSW, LICSWWilliamstown, MA 012671649318437
  8. Garrett Lechowski, LICSW, CADAC, LADC IWilliamstown, MA 012671639235005

Common questions

What is Katherine Cortes Ambrosio, MSW's NPI number?

Katherine Cortes Ambrosio, MSW's National Provider Identifier (NPI) is 1427824697, issued on Nov 29, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Katherine Cortes Ambrosio, MSW located?

The NPPES record lists a practice address at 86 Brodie Mountain RD, Williamstown, MA, 01267. Phone: (413) 200-0454. Providers update this record themselves, so call before visiting.

How can I verify Katherine Cortes Ambrosio, MSW's license?

NPPES lists Massachusetts license number LISCW1142052, 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.