Registry data as of Aug 27, 2026

Constance Ahlstrom, LICSW

Clinical Social Worker · Watertown, MA

Constance Ahlstrom, LICSW is a clinical social worker with a practice address in Watertown, Massachusetts, and NPI 1992010243, issued on Aug 11, 2010. Check the license (Massachusetts 111341, 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.

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

NPPES recordas of Aug 27, 2026
1992010243
Name
Constance Ahlstrom
Credential
LICSW
Primary taxonomy
Clinical Social Worker 1041C0700X
License number
111341 MA
Self-reported in NPPES; status is on the state search
Practice location
22 Mount Auburn St, Watertown, MA 02472
Phone
(617) 489-5052
Enumerated
Aug 11, 2010
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 22 Mount Auburn St

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

  1. Rachel Aylsworth, LMHC, BC-DMTDance Therapist1639883374
  2. Maria Caracino, LIC. AC.Acupuncturist1134161003
  3. Barry Kesselman, MED,LMHCMental Health Counselor1730355660
  4. Judith Kneen, LICSWClinical Social Worker1164587648
  5. Mitchell Kossak, LMHCMental Health Counselor1598971160
  6. Jaime MatorrasMental Health Counselor1245478403

Verify Constance Ahlstrom 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 111341
    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.

93 clinical social worker records list a Watertown practice address

They are 93 of the 873 NPPES records with a Watertown practice address, and 16,942 clinical social worker records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

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 Constance Ahlstrom, LICSW's NPI number?

Constance Ahlstrom, LICSW's National Provider Identifier (NPI) is 1992010243, issued on Aug 11, 2010. An NPI identifies a provider in billing; it is not a license.

Where is Constance Ahlstrom, LICSW located?

The NPPES record lists a practice address at 22 Mount Auburn St, Watertown, MA, 02472. Phone: (617) 489-5052. Providers update this record themselves, so call before visiting.

How can I verify Constance Ahlstrom, LICSW's license?

NPPES lists Massachusetts license number 111341, 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. 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.