MARLENE CASSIDY MCMASTER PMHNP
NPI 1710150735
Registered Nurse - Psychiatric/Mental Health in Worcester, MA
About Marlene Cassidy Mcmaster Pmhnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARLENE CASSIDY MCMASTER PMHNP (NPI 1710150735) is an individual psychiatric/mental health provider in Worcester, Massachusetts, licensed in Massachusetts (266-053) and active in the NPI registry since April 2008. She is enrolled in Medicare PECOS and is a graduate of Other (2025).
NPPES Registry Identity
Specialties & Licenses 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Marlene Cassidy Mcmaster Pmhnp 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.
Medicare Billing Reassignment
Medicare enrollment records show Marlene Mcmaster reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Worcester, MA 01604
- Reassigned Medicare billing, Massachusetts enrollment
- 59 clinicians in this Medicare group
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 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WORCESTER, MA 01604
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 Marlene Mcmaster's NPI number?
The NPI number for Marlene Mcmaster is 1710150735. It was assigned to this individual provider in the NPPES registry on April 10, 2008.
Where is Marlene Mcmaster located?
Marlene Mcmaster practices at 309 Belmont St, Worcester, MA 01604. The listed phone number is (508) 368-4000.
What is Marlene Mcmaster's specialty?
The primary specialty registered for this NPI is Registered Nurse, specializing in Psychiatric/Mental Health, with taxonomy code 163WP0808X.
Is Marlene Mcmaster enrolled in Medicare?
Yes. Marlene Mcmaster 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.
Which organization bills Medicare for Marlene Mcmaster's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marlene Mcmaster reassigns Medicare benefits to The Commonwealth Of Massachusetts (Worcester, MA). 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 Marlene Mcmaster'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 Marlene Mcmaster was last updated on October 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 days 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.
# Marlene Cassidy Mcmaster, PMHNP · NPI 1710150735
Psychiatric/Mental Health provider in Worcester, Massachusetts. Individual provider, active in the CMS NPPES registry since April 10, 2008.
## Identity
- **NPI:** 1710150735 (Entity type: Individual)
- **Enumerated:** April 10, 2008
- **Primary specialty:** Registered Nurse - Psychiatric/Mental Health · taxonomy 163WP0808X
- **State license:** 266-053 (Massachusetts)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 309 BELMONT ST, Worcester, MA 01604-1059
- **Phone:** (508) 368-4000
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** The Commonwealth Of Massachusetts (NPI 1275680456, Worcester, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2025
## Record status
- **NPPES last updated:** October 22, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1710150735) · Data from the CMS NPPES public registry.