ALLISON MARKIEWICZ LMSW
NPI 1750898409
Social Worker in New York, NY

Q: What is Allison Markiewicz's NPI number?

The NPI number for Allison Markiewicz is 1750898409. It was assigned to this individual provider in the NPPES registry on January 3, 2018.

Q: What is Allison Markiewicz's specialty?

The primary specialty registered for this NPI is Social Worker with taxonomy code 104100000X.

Active since January 03, 2018PECOS Enrolled

2090 ADAM CLAYTON POWELL JR BLVD FL 8, NEW YORK, NY 10027(212) 553-6300 Get Directions Write a Review

NPPES record last updated: January 3, 2018. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Allison Markiewicz Lmsw NPPES

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

ALLISON MARKIEWICZ LMSW (NPI 1750898409) is an individual social worker in New York, New York, licensed in New York (099405-1) and active in the NPI registry since January 2018. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1750898409

Entity TypeIndividualFemale

Primary Taxonomy104100000X

Provider Legal NameALLISON MARKIEWICZCredential: LMSW

Location Address2090 ADAM CLAYTON POWELL JR BLVD FL 8New York, NY 10027-4990

Mailing Address590 Avenue Of The AmericasNew York, NY 10011-2022

Phone(212) 553-6300

Sole ProprietorNo

Enumeration DateJanuary 3, 2018

✔ NPI 1750898409 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySocial WorkerBehavioral Health & Social Service Providers

Taxonomy Code104100000X

License✔ Licensed in NY · 099405-1

Definition

A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public.

2090 ADAM CLAYTON POWELL JR BLVD FL 8, New York, NY 10027

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Highmark Blue Cross Blue Shield Delaware.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Allison Markiewicz Lmsw is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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 Markiewicz reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Ch Mh Services Ma, LLC

193 mi

Adolescent and Children Mental Health

1R NEWBURY ST STE 309
Peabody, MA 01960

Reassigned Medicare billing, Massachusetts enrollment
18 clinicians in this Medicare group

NPI 1083593024 (406) 219-7835

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

Other Providers at the Same Location NPPES 5

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

PIYUMI BUDDHAKORALA LCSW

Social Worker (Clinical)