EMILY CASTELLANOS
NPI 1194590117
Counselor - Mental Health in Mattapan, MA
About Emily Castellanos NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
EMILY CASTELLANOS (NPI 1194590117) is an individual mental health provider in Mattapan, Massachusetts, licensed in Massachusetts (1000110) and active in the NPI registry since November 2023. She is enrolled in Medicare PECOS, maintains a secondary practice location in Quincy, and is a graduate of Other (2021).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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)
Emily Castellanos is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Emily Castellanos reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Boston, MA 02126
- Reassigned Medicare billing, Massachusetts enrollment
- 37 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.
MATTAPAN, MA 02126
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 Emily Castellanos's NPI number?
The NPI number for Emily Castellanos is 1194590117. It was assigned to this individual provider in the NPPES registry on November 20, 2023.
Where is Emily Castellanos located?
Emily Castellanos practices at 1575 Blue Hill Ave, Mattapan, MA 02126. The listed phone number is (617) 296-0061.
What is Emily Castellanos's specialty?
The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.
Is Emily Castellanos enrolled in Medicare?
Yes. Emily Castellanos is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Emily Castellanos's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Emily Castellanos reassigns Medicare benefits to Mattapan Community Health Center Inc (Boston, 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 Emily Castellanos's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Emily Castellanos accept?
Health plans from Harvard Pilgrim Health Care list Emily Castellanos 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 Emily Castellanos was last updated on November 20, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Emily Castellanos · NPI 1194590117
Mental Health provider in Mattapan, Massachusetts. Individual provider, active in the CMS NPPES registry since November 20, 2023.
## Identity
- **NPI:** 1194590117 (Entity type: Individual)
- **Enumerated:** November 20, 2023
- **Primary specialty:** Counselor - Mental Health · taxonomy 101YM0800X
- **State license:** 1000110 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 1575 BLUE HILL AVE, Mattapan, MA 02126-2122
- **Phone:** (617) 296-0061
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Mattapan Community Health Center Inc (NPI 1942869342, Boston, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2021
## Record status
- **NPPES last updated:** November 20, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1194590117) · Data from the CMS NPPES public registry.