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MS. MARY WALLACH MSW, LCSW
NPI 1184848277
Social Worker - Clinical in New York, NY

Active since April 12, 2007Opted out of Medicare · through May 2, 2027
128 E 91ST ST, SUITE A3, NEW YORK, NY 10128(212) 369-2194 Get Directions Write a Review

NPPES record last updated: September 7, 2016. Verified against the NPPES registry weekly; last sync: August 02, 2026.

About Ms. Mary Wallach Msw, Lcsw NPPES

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

MS. MARY WALLACH MSW, LCSW (NPI 1184848277) is an individual clinical provider in New York, New York, licensed in New York (071131) and active in the NPI registry since April 2007. She has opted out of Medicare through May 2, 2027.

NPPES Registry Identity

NPI1184848277
Entity TypeIndividualFemale
Primary Taxonomy1041C0700X
Provider Legal NameMS. MARY WALLACHCredential: MSW, LCSW
Location Address128 E 91ST ST, SUITE A3New York, NY 10128-1648
Mailing Address128 E 91st St, Suite A3New York, NY 10128-1648 · (212) 369-2194
Phone(212) 369-2194
Sole ProprietorYes
Enumeration DateApril 12, 2007
Last NPPES UpdateSeptember 7, 2016
✔ NPI 1184848277 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 NY · 071131
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.
128 E 91ST ST, New York, NY 10128
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

ⓘ

Opted out of Medicare

Ms. Mary Wallach Msw, Lcsw has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from May 2, 2025 through May 2, 2027.

Opt-Out Effective DateMay 2, 2025
Opt-Out In Effect ThroughMay 2, 2027Opt-out affidavits renew automatically every two years unless cancelled
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment– Home Health Agency– Power Mobility DevicesAn opted-out provider can still order and refer for Medicare patients in the categories marked above, even though their own services are not covered.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 10128 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 $65.69 – $198.19
Typical copayment $0.00 (range $16.42 – $49.54)
Most-billed visit code NA
Established Patient
$81.44 typical visit price
range $21.20 – $160.66
Typical copayment $20.36 (range $5.30 – $40.16)
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.

Other Providers at the Same Location NPPES

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

DR. ALISA J. GREENWALD PSY.D.
Psychologist (Clinical)
128 E 91ST ST, SUITE A3
NEW YORK, NY 10128
New York County (212) 769-0063

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 Mary Wallach's NPI number?

The NPI number for Mary Wallach is 1184848277. It was assigned to this individual provider in the NPPES registry on April 12, 2007.

Where is Mary Wallach located?

Mary Wallach practices at 128 E 91st St Suite A3, New York, NY 10128. The listed phone number is (212) 369-2194.

What is Mary Wallach's specialty?

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

Is Mary Wallach enrolled in Medicare?

No. Mary Wallach has opted out of Medicare through May 2, 2027. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out.

When was this NPI record last updated?

The NPPES record for Mary Wallach was last updated on September 7, 2016. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 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.