NPPES file of Aug 9, 2026

Kate Gruenwald Pfeifer, LCSW

Clinical Social Worker · West Orange, NJ

Kate Gruenwald Pfeifer, LCSW is a clinical social worker with a practice address in West Orange, New Jersey, and NPI 1164586897, issued on Dec 20, 2006. Check the license (New Jersey 44SC05206800, as entered in NPPES) with the New Jersey board that licenses this profession; the federal record below is the public data PlainDoctor holds for this provider.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1164586897
Name
Kate Gruenwald Pfeifer
Credential
LCSW
Primary taxonomy
Clinical Social Worker 1041C0700X
License number
44SC05206800 NJ
Self-reported in NPPES; status is on the state search
Practice location
743 Northfield Ave, West Orange, NJ 07052
Phone
(973) 641-0376
Enumerated
Dec 20, 2006
Record last updated
Jun 10, 2013 (not updated in 13 years: call before relying on the address or phone)
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 743 Northfield Ave

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

  1. Barry Mitchell, PSY.D.Psychologist1396843983
  2. Stephen Toder, MD.Diagnostic Radiology Physician1679671861
  3. Wayne Young, PH.D.Psychologist1881779486

Verify Kate Gruenwald Pfeifer in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich New Jersey board licenses this profession
    Search for license 44SC05206800
    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 New Jersey 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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Kate Gruenwald Pfeifer among 9,790 clinical social worker records in New Jersey

Kate Gruenwald Pfeifer, LCSW is one of 9,790 clinical social worker records with a practice address in New Jersey. 12% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than under 1% of them.

  • NPI issued2006 · under 1% of these records are older, 89% newer
  • In a Medicare fileNo · 12% of these records are
  • In the CMS Doctors and Clinicians fileNo · 22% of these records are
  • Record last updated2013 · 59% 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 New Jersey practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

68 clinical social worker records list a practice address in West Orange

They are 68 of the 1,370 NPPES records with a practice address in West Orange, and 9,790 clinical social worker records in New Jersey. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 clinical social worker records with the nearest ZIP codes

  1. Marlene Davis, MSW MED MAWest Orange, NJ 070521588733265
  2. Gerald Deangelis, LCSWWest Orange, NJ 070521316967359
  3. Mary Duguid, LCSWWest Orange, NJ 070521033245535
  4. Carol Gray, LCSWWest Orange, NJ 070521255467759
  5. Janet HofferWest Orange, NJ 070521396887147
  6. Jonathan Lebolt, PHD, LCSW, CGPWest Orange, NJ 070521639125446
  7. Maria Rebelo, LCSWWest Orange, NJ 070521184755241
  8. Deborah Russ, LCSWWest Orange, NJ 070521700088606

Common questions

What is Kate Gruenwald Pfeifer, LCSW's NPI number?

Kate Gruenwald Pfeifer, LCSW's National Provider Identifier (NPI) is 1164586897, issued on Dec 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Kate Gruenwald Pfeifer, LCSW located?

The NPPES record lists a practice address at 743 Northfield Ave, West Orange, NJ, 07052. Phone: (973) 641-0376. Providers update this record themselves, so call before visiting.

How can I verify Kate Gruenwald Pfeifer, LCSW's license?

NPPES lists New Jersey license number 44SC05206800, as entered by the provider. Search the New Jersey 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.