John Frederick Blumenstiel, LCSW
Clinical Social Worker · Cambridge, MA
John Frederick Blumenstiel, LCSW is a clinical social worker with a practice address in Cambridge, Massachusetts, and NPI 1780718486, issued on Mar 15, 2007. Check the license (Massachusetts 208633, 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
- John Frederick Blumenstiel
- Credential
- LCSW
- Primary taxonomy
- Clinical Social Worker 1041C0700X
- License number
- 208633 MA
Self-reported in NPPES; status is on the state search - Practice location
- 950 Cambridge St, Cambridge, MA 02141
- Phone
- (617) 441-1717
- Enumerated
- Mar 15, 2007
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Also registered at 950 Cambridge St
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Nancy Abrams, LSWSocial Worker1477670685
- Kristen BellMental Health Counselor1992827976
- Bruce Bird, PH.DClinical Psychologist1215422159
- Mary Burke, LCSWClinical Social Worker1194974204
- Elena ClamenMental Health Counselor1093838492
- Karen Dale, LICSWClinical Social Worker1689897332
Verify John Frederick Blumenstiel in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
Search for license 208633Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
545 clinical social worker records list a practice address in Cambridge
They are 545 of the 5,145 NPPES records with a practice address in Cambridge, and 17,815 clinical social worker records in Massachusetts. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 545 in Cambridge → All 17,815 in Massachusetts → Every provider in Cambridge →
Other clinical social worker records in Massachusetts
- Andrew Aaron, LICSWNew Bedford, MA1053477885
- Cynthia AaronFall River, MA1407258676
- Emanuel Aaron, LICSW,LADCI, CADCII,Orange, MA1134475817
- Karla Abad, LCSWLynn, MA1598577470
- Amy Abair, LICSWBoston, MA1972821858
- Nicole Abair, LCSWLexington, MA1386590859
- Stephanie Abate, LICSWAmherst, MA1669580973
- Lynn Abbey, LICSWFall River, MA1437189248
- Bernard Abbot, MSWBoston, MA1861913188
- Amanda Abbott, CNM, LCSWCambridge, MA1821358284
Common questions
What is John Frederick Blumenstiel, LCSW's NPI number?
John Frederick Blumenstiel, LCSW's National Provider Identifier (NPI) is 1780718486, issued on Mar 15, 2007. An NPI identifies a provider in billing; it is not a license.
Where is John Frederick Blumenstiel, LCSW located?
The NPPES record lists a practice address at 950 Cambridge St, Cambridge, MA, 02141. Phone: (617) 441-1717. Providers update this record themselves, so call before visiting.
How can I verify John Frederick Blumenstiel, LCSW's license?
NPPES lists Massachusetts license number 208633, 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.