Katherine Harrison Ostroff, MSW
Social Worker · Princeton, MA
Katherine Harrison Ostroff, MSW is a social worker with a practice address in Princeton, Massachusetts, and NPI 1265913412, issued on Aug 26, 2018. Check the license (Massachusetts 105974, 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.
- Name
- Katherine Harrison Ostroff
- Credential
- MSW
- Primary taxonomy
- Social Worker 104100000X
- License number
- 105974 MA
Self-reported in NPPES; status is on the state search - Practice location
- 305 Redemption Rock Trl S, Princeton, MA 01541
- Phone
- (978) 563-1516
- Enumerated
- Aug 26, 2018
- Record last updated
- Aug 26, 2018 (not updated in 8 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Verify Katherine Harrison Ostroff in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license 105974Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
1 social worker records list a practice address in Princeton
They are 1 of the 25 NPPES records with a practice address in Princeton, and 5,517 social worker records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
Other social worker records in Massachusetts
- Chelsea Aaron, MSW, LCSWStoneham, MA1679129761
- Flannery AbbeyCambridge, MA1508604273
- Sarah Abbott, LSWFramingham, MA1023168945
- Sharon AbdallaSpringfield, MA1538759782
- Rana AbdallahCambridge, MA1689220204
- Marissa Abdow, LICSWNorth Quincy, MA1548894934
- Nicholas AbrahamWorcester, MA1023555208
- Betsy AbramsCambridge, MA1639654361
- Debra Abrams, LICSWCambridge, MA1508084070
- Nancy Abrams, LSWCambridge, MA1477670685
Common questions
What is Katherine Harrison Ostroff, MSW's NPI number?
Katherine Harrison Ostroff, MSW's National Provider Identifier (NPI) is 1265913412, issued on Aug 26, 2018. An NPI identifies a provider in billing; it is not a license.
Where is Katherine Harrison Ostroff, MSW located?
The NPPES record lists a practice address at 305 Redemption Rock Trl S, Princeton, MA, 01541. Phone: (978) 563-1516. Providers update this record themselves, so call before visiting.
How can I verify Katherine Harrison Ostroff, MSW's license?
NPPES lists Massachusetts license number 105974, 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. 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.