SILVIA NASTASIO MD
NPI 1770044349
Pediatrics - Pediatric Gastroenterology in Boston, MA
About Silvia Nastasio Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SILVIA NASTASIO MD (NPI 1770044349) is an individual pediatric gastroenterology provider in Boston, Massachusetts, licensed in Massachusetts (292437) and active in the NPI registry since March 2019. She is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
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)
Silvia Nastasio Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Silvia Nastasio reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Boston, MA 02115
- Reassigned Medicare billing, Massachusetts enrollment
- 1,358 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02115 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
BOSTON, MA 02115
BOSTON, MA 02115
BOSTON, MA 02115
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 Silvia Nastasio's NPI number?
The NPI number for Silvia Nastasio is 1770044349. It was assigned to this individual provider in the NPPES registry on March 27, 2019.
Where is Silvia Nastasio located?
Silvia Nastasio practices at 300 Longwood Ave, Boston, MA 02115. The listed phone number is (617) 355-6000.
What is Silvia Nastasio's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Gastroenterology, with taxonomy code 2080P0206X.
Is Silvia Nastasio enrolled in Medicare?
Yes. Silvia Nastasio is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Silvia Nastasio's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Silvia Nastasio reassigns Medicare benefits to Children's Hospital Pediatric Associates, 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 Silvia Nastasio's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Silvia Nastasio accept?
Health plans from Taro Health list Silvia Nastasio 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 Silvia Nastasio was last updated on August 21, 2024. 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.
# Silvia Nastasio, MD · NPI 1770044349
Pediatric Gastroenterology physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since March 27, 2019.
## Identity
- **NPI:** 1770044349 (Entity type: Individual)
- **Enumerated:** March 27, 2019
- **Primary specialty:** Pediatrics - Pediatric Gastroenterology · taxonomy 2080P0206X
- **State license:** 292437 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 300 LONGWOOD AVE, Boston, MA 02115-5724
- **Phone:** (617) 355-6000
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Children's Hospital Pediatric Associates, Inc (NPI 1457306664, Boston, MA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** August 21, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1770044349) · Data from the CMS NPPES public registry.