MS. ALLISON GRIMES
NPI 1437553286
Counselor - Mental Health in Cambridge, MA
About Ms. Allison Grimes NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MS. ALLISON GRIMES (NPI 1437553286) is an individual mental health provider in Cambridge, Massachusetts, licensed in Massachusetts (10846) and active in the NPI registry since October 2014. She has opted out of Medicare through August 20, 2026 and maintains a secondary practice location in Brighton.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Opted out of Medicare
Ms. Allison Grimes has filed a Medicare opt-out affidavit. Services are provided under private contract between the provider and the patient, and are not billed to or reimbursed by Medicare. The opt-out is on file from August 20, 2024 through August 20, 2026.
Other Providers at the Same Location NPPES 13
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 Allison Grimes's NPI number?
The NPI number for Allison Grimes is 1437553286. It was assigned to this individual provider in the NPPES registry on October 22, 2014.
Where is Allison Grimes located?
Allison Grimes practices at 335 Broadway, Cambridge, MA 02139. The listed phone number is (857) 505-5956.
What is Allison Grimes's specialty?
The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.
Is Allison Grimes enrolled in Medicare?
No. Allison Grimes has opted out of Medicare through August 20, 2026. Care is provided under private contracts, and Medicare does not pay for services furnished by providers who have opted out.
When was this NPI record last updated?
The NPPES record for Allison Grimes was last updated on August 19, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# Ms. Allison Grimes · NPI 1437553286
Mental Health provider in Cambridge, Massachusetts. Individual provider, active in the CMS NPPES registry since October 22, 2014.
## Identity
- **NPI:** 1437553286 (Entity type: Individual)
- **Enumerated:** October 22, 2014
- **Primary specialty:** Counselor - Mental Health · taxonomy 101YM0800X
- **State license:** 10846 (Massachusetts)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 335 BROADWAY, Cambridge, MA 02139-1803
- **Phone:** (857) 505-5956
## Medicare
- **Medicare:** Opted out of Medicare (opt-out affidavit on file, in effect through August 20, 2026); services are provided under private contract
## Record status
- **NPPES last updated:** August 19, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1437553286) · Data from the CMS NPPES public registry.