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Clinical Social Worker

Marsha K. Ontell, CSW

Sees patients in Leonia, NJ · New Jersey

Summary

Marsha K. Ontell, CSW is a clinical social worker at 325 Magnolia Pl, Leonia, NJ 07605. Phone: (201) 592-6628. Accepts Medicare assignment. NPI 1447270913. Source: CMS National Downloadable File, updated October 2, 2026.

  • Specialty: Clinical social worker
  • Address: 325 Magnolia Pl, Leonia, NJ 07605 · Directions (1 more location)
  • Phone: (201) 592‑6628
  • Medicare: Accepts Medicare assignment
  • School: graduated 1976
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Marsha K. Ontell, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Marsha K. Ontell accept Medicare assignment?
Yes. Medicare's clinician data says Marsha K. Ontell accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
What is Marsha K. Ontell's NPI number?
1447270913. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Marsha K. Ontell is enrolled with Medicare (CMS data updated October 2, 2026).

Specialties

Find other clinicians: Clinical Social Worker, New Jersey →

Other clinical social workers in New Jersey

Clinicians with the same Medicare primary specialty in New Jersey — not a recommendation.

All clinical social workers in New Jersey →

Clinician information

CredentialCSW
Graduation year1976
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1447270913
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians