TATIANA MARIE SANTILLI N/A
NPI 1639761463
Counselor - Mental Health in Lynn, MA
About Tatiana Marie Santilli N/a NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
TATIANA MARIE SANTILLI N/A (NPI 1639761463) is an individual mental health provider in Lynn, Massachusetts and active in the NPI registry since February 2021. She is enrolled in Medicare PECOS and is a graduate of Other (2022).
NPPES Registry Identity
Specialties & Licenses
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
Tatiana Marie Santilli N/a 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 Tatiana Santilli reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Lexington, MA 02421
- Reassigned Medicare billing, Massachusetts enrollment
- 167 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.
LYNN, MA 01901
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 Tatiana Santilli's NPI number?
The NPI number for Tatiana Santilli is 1639761463. It was assigned to this individual provider in the NPPES registry on February 3, 2021.
Where is Tatiana Santilli located?
Tatiana Santilli practices at 95 Pleasant St, Lynn, MA 01901. The listed phone number is (781) 581-4400.
What is Tatiana Santilli's specialty?
The primary specialty registered for this NPI is Counselor, specializing in Mental Health, with taxonomy code 101YM0800X.
Is Tatiana Santilli enrolled in Medicare?
Yes. Tatiana Santilli 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 Tatiana Santilli's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Tatiana Santilli reassigns Medicare benefits to Eliot Community Human Services (Lexington, 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 Tatiana Santilli'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 Tatiana Santilli was last updated on February 3, 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.
# Tatiana Marie Santilli, N/A · NPI 1639761463
Mental Health provider in Lynn, Massachusetts. Individual provider, active in the CMS NPPES registry since February 3, 2021.
## Identity
- **NPI:** 1639761463 (Entity type: Individual)
- **Enumerated:** February 3, 2021
- **Primary specialty:** Counselor - Mental Health · taxonomy 101YM0800X
- **Sole proprietor:** Yes
## Practice location
- **Address:** 95 PLEASANT ST, Lynn, MA 01901-1524
- **Phone:** (781) 581-4400
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment
- **Bills Medicare through:** Eliot Community Human Services (NPI 1932271632, Lexington, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2022
## Record status
- **NPPES last updated:** February 3, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1639761463) · Data from the CMS NPPES public registry.