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MS. SANDRA GREENSTEIN LMHC
NPI 1023310463
Counselor - Mental Health in Round Ridge, NY

Active since November 17, 2010PECOS Enrolled
104 HACK GREEN ROAD, ROUND RIDGE, NY 10576(646) 831-2613(866) 700-6071 Get Directions Write a Review

NPPES record last updated: April 11, 2023. Verified against the NPPES registry weekly; last sync: October 18, 2026.

About Ms. Sandra Greenstein Lmhc NPPES

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

MS. SANDRA GREENSTEIN LMHC (NPI 1023310463) is an individual mental health provider in Round Ridge, New York, licensed in New York (002292-1) and active in the NPI registry since November 2010. She is enrolled in Medicare PECOS and is a graduate of Other (1987).

NPPES Registry Identity

NPI1023310463
Entity TypeIndividualFemale
Primary Taxonomy101YM0800X
Provider Legal NameMS. SANDRA GREENSTEINCredential: LMHC
Location Address104 HACK GREEN ROADRound Ridge, NY 10576-2131
Mailing Address104 Hack Green RoadRound Ridge, NY 10576-2131 · (646) 831-2613 · Fax (866) 700-6071
Phone(646) 831-2613
Fax(866) 700-6071
Sole ProprietorYes
Medical School CMSOtherGraduated 1987
Enumeration DateNovember 17, 2010
Last NPPES UpdateApril 11, 2023
NPPES CertifiedApril 11, 2023
✔ NPI 1023310463 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyCounselor · Mental HealthBehavioral Health & Social Service Providers
Taxonomy Code101YM0800X
License✔ Licensed in NY · 002292-1
104 HACK GREEN ROAD, Round Ridge, NY 10576
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Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ms. Sandra Greenstein Lmhc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID8325576176
PECOS Enrollment IDI20250108000989
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 Sandra Greenstein reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Careerlife Solutions, Inc.
Same address
Mental Health
104 HACK GREEN ROAD
Pound Ridge, NY 10576
  • Reassigned Medicare billing, New York enrollment
NPI 1194027532 (646) 831-2613

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

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

CAREERLIFE SOLUTIONS, INC.
Counselor (Mental Health)
104 HACK GREEN ROAD
POUND RIDGE, NY 10576
Westchester County (646) 831-2613

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 Sandra Greenstein's NPI number?

The NPI number for Sandra Greenstein is 1023310463. It was assigned to this individual provider in the NPPES registry on November 17, 2010.

Where is Sandra Greenstein located?

Sandra Greenstein practices at 104 Hack Green Road, Round Ridge, NY 10576. The listed phone number is (646) 831-2613.

What is Sandra Greenstein's specialty?

The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.

Is Sandra Greenstein enrolled in Medicare?

Yes. Sandra Greenstein is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Sandra Greenstein's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sandra Greenstein reassigns Medicare benefits to Careerlife Solutions, Inc. (Pound Ridge, NY). 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 Sandra Greenstein's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Sandra Greenstein was last updated on April 11, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.