MR. MICHAEL DEAN ASH SR. LCSWR
NPI 1386761179
Social Worker - Clinical in Mastic, NY
About Mr. Michael Dean Ash Sr. Lcswr NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MR. MICHAEL DEAN ASH SR. LCSWR (NPI 1386761179) is an individual clinical provider in Mastic, New York, licensed in New York (R057950) and active in the NPI registry since March 2007. He is enrolled in Medicare PECOS and is a graduate of Other (1998).
NPPES Registry Identity
Specialties & Licenses 2
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Mr. Michael Dean Ash Sr. Lcswr is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Michael Ash reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Shirley, NY 11967
- Reassigned Medicare billing, New York enrollment
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 11950 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Michael Ash's NPI number?
The NPI number for Michael Ash is 1386761179. It was assigned to this individual provider in the NPPES registry on March 25, 2007.
Where is Michael Ash located?
Michael Ash practices at 56 Clinton Ave, Mastic, NY 11950. The listed phone number is (646) 261-3215.
What is Michael Ash's specialty?
The primary specialty registered for this NPI is Social Worker, specializing in Clinical, with taxonomy code 1041C0700X.
Is Michael Ash enrolled in Medicare?
Yes. Michael Ash is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Michael Ash's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Michael Ash reassigns Medicare benefits to Michael Ash Lcsw PLLC (Shirley, 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 Michael Ash's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Michael Ash accept?
Health plans from Oscar Health list Michael Ash 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 Michael Ash was last updated on February 23, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.
# Mr. Michael Dean Ash Sr., LCSWR · NPI 1386761179
Clinical provider in Mastic, New York. Individual provider, active in the CMS NPPES registry since March 25, 2007.
## Identity
- **NPI:** 1386761179 (Entity type: Individual)
- **Enumerated:** March 25, 2007
- **Primary specialty:** Social Worker - Clinical · taxonomy 1041C0700X
- **State license:** R057950 (New York)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 56 CLINTON AVE, Mastic, NY 11950-3106
- **Phone:** (646) 261-3215
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Michael Ash Lcsw PLLC (NPI 1619305026, Shirley, NY), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1998
## Record status
- **NPPES last updated:** February 23, 2012
---
Source: [NPI Profile](https://npiprofile.com/npi/1386761179) · Data from the CMS NPPES public registry.