DOROTHY MACK, LICSW LLC
NPI 1578150439
Clinic/Center - Adult Mental Health in Pittsfield, MA
About Dorothy Mack, Licsw Llc NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DOROTHY MACK, LICSW LLC (NPI 1578150439) is a healthcare organization registered as an adult mental health in Pittsfield, Massachusetts and active in the NPI registry since December 2020. The organization lists Dorothy Mack, Clinician, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dorothy Mack, Licsw Llc is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
Medicare enrollment records show 1 clinician reassigns Medicare billing to Dorothy Mack, Licsw LLC, which bills Medicare for the services this clinician delivers.
Clinician (1)
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Dorothy Mack, Licsw LLC's NPI number?
The NPI number for Dorothy Mack, Licsw LLC is 1578150439. It was assigned to this organization in the NPPES registry on December 28, 2020.
Where is Dorothy Mack, Licsw LLC located?
Dorothy Mack, Licsw LLC is located at 10 Wendell Avenue Ext Ste 209, Pittsfield, MA 01201. The listed phone number is (413) 281-0141.
What is Dorothy Mack, Licsw LLC's specialty?
The primary specialty registered for this NPI is Clinic/Center, specializing in Adult Mental Health, with taxonomy code 261QM0850X.
Is Dorothy Mack, Licsw LLC enrolled in Medicare?
Yes. Dorothy Mack, Licsw LLC is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Dorothy Mack, Licsw LLC?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Clinical Social Worker) reassigns their Medicare billing to Dorothy Mack, Licsw LLC. A 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 the clinician's services. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Dorothy Mack, Licsw LLC was last updated on July 2, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Dorothy Mack, Licsw Llc · NPI 1578150439
Adult Mental Health organization in Pittsfield, Massachusetts. Organization record, active in the CMS NPPES registry since December 28, 2020.
## Identity
- **NPI:** 1578150439 (Entity type: Organization)
- **Enumerated:** December 28, 2020
- **Primary specialty:** Clinic/Center - Adult Mental Health · taxonomy 261QM0850X
- **Organization subpart:** No
- **Authorized official:** Dorothy Mack, CLINICIAN
## Practice location
- **Address:** 10 WENDELL AVENUE EXT STE 209, Pittsfield, MA 01201-6283
- **Phone:** (413) 281-0141
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 1 clinician (Clinical Social Worker) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 2, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1578150439) · Data from the CMS NPPES public registry.