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MRS. ALLISON OSTASHEN LICSW
NPI 1881171478
Social Worker - Clinical in Abington, MA

Active since July 26, 2018PECOS Enrolled
55 PILGRIM ST, ABINGTON, MA 02351(617) 529-0420 Get Directions Write a Review

NPPES record last updated: July 26, 2018. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Mrs. Allison Ostashen Licsw NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

MRS. ALLISON OSTASHEN LICSW (NPI 1881171478) is an individual clinical provider in Abington, Massachusetts, licensed in Massachusetts (120659) and active in the NPI registry since July 2018. She is enrolled in Medicare PECOS and is a graduate of Other (2012).

NPPES Registry Identity

NPI1881171478
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameMRS. ALLISON OSTASHENCredential: LICSW
Location Address55 PILGRIM STAbington, MA 02351-2217
Mailing Address55 Pilgrim StAbington, MA 02351-2217 · (617) 529-0420
Phone(617) 529-0420
Sole ProprietorYes
Medical School CMSOtherGraduated 2012
Enumeration DateJuly 26, 2018
✔ NPI 1881171478 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial Worker · ClinicalBehavioral Health & Social Service Providers
Taxonomy Code1041C0700X
License✔ Licensed in MA · 120659
Definition
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances.
55 PILGRIM ST, Abington, MA 02351
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Anthem Blue Cross and Blue Shield, Harvard Pilgrim Health Care.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Mrs. Allison Ostashen Licsw is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID143797662
PECOS Enrollment IDI20260427003403
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Allison Ostashen reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Grow Healthcare Group PA
1,244 mi
Mental Health
66 W FLAGLER ST STE 900
Miami, FL 33130
  • Reassigned Medicare billing, New Hampshire and Texas enrollments
  • 98 clinicians in this Medicare group
NPI 1245845932 (786) 244-7711

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 02351 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$0.00 typical visit price
range $58.86 – $177.36
Typical copayment $0.00 (range $14.71 – $44.34)
Most-billed visit code NA
Established Patient
$73.22 typical visit price
range $19.11 – $144.84
Typical copayment $18.30 (range $4.77 – $36.21)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Allison Ostashen's NPI number?

The NPI number for Allison Ostashen is 1881171478. It was assigned to this individual provider in the NPPES registry on July 26, 2018.

Where is Allison Ostashen located?

Allison Ostashen practices at 55 Pilgrim St, Abington, MA 02351. The listed phone number is (617) 529-0420.

What is Allison Ostashen's specialty?

The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.

Is Allison Ostashen enrolled in Medicare?

Yes. Allison Ostashen is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Allison Ostashen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Allison Ostashen reassigns Medicare benefits to Grow Healthcare Group PA (Miami, FL). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Allison Ostashen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Allison Ostashen accept?

Health plans from Anthem Blue Cross and Blue Shield and Harvard Pilgrim Health Care list Allison Ostashen as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Allison Ostashen was last updated on July 26, 2018. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.