RUSSELL P MACKAY
NPI 1790877090
Counselor - Mental Health in Boston, MA
About Russell P Mackay NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RUSSELL P MACKAY (NPI 1790877090) is an individual mental health provider in Boston, Massachusetts, licensed in Massachusetts (LMHC10002806) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS, maintains a secondary practice location in Provo, and is a graduate of Other (2013).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Russell P Mackay is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Other Providers at the Same Location NPPES
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Russell Mackay's NPI number?
The NPI number for Russell Mackay is 1790877090. It was assigned to this individual provider in the NPPES registry on September 28, 2006.
Where is Russell Mackay located?
Russell Mackay practices at 434 Massachusetts Ave Ste 501, Boston, MA 02118. The listed phone number is (339) 666-8516.
What is Russell Mackay's specialty?
The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.
Is Russell Mackay enrolled in Medicare?
Yes. Russell Mackay is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
What insurance does Russell Mackay accept?
Health plans from Anthem Blue Cross and Blue Shield, BridgeSpan Health Company, Harvard Pilgrim Health Care, Molina Healthcare and Providence Health Plan and 3 other insurers list Russell Mackay 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 Russell Mackay was last updated on June 2, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 months 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.
# Russell P Mackay · NPI 1790877090
Mental Health provider in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since September 28, 2006.
## Identity
- **NPI:** 1790877090 (Entity type: Individual)
- **Enumerated:** September 28, 2006
- **Primary specialty:** Counselor - Mental Health · taxonomy 101YM0800X
- **State license:** LMHC10002806 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 434 MASSACHUSETTS AVE STE 501, Boston, MA 02118-3522
- **Phone:** (339) 666-8516 · **Fax:** (617) 807-0958
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Medical school:** Other, class of 2013
## Record status
- **NPPES last updated:** June 2, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1790877090) · Data from the CMS NPPES public registry.