JASON FISCHER M.D., M.ED.
NPI 1235574781
Pediatrics - Pediatric Emergency Medicine in Boston, MA
About Jason Fischer M.d., M.ed. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
JASON FISCHER M.D., M.ED. (NPI 1235574781) is an individual pediatric emergency medicine provider in Boston, Massachusetts, licensed in Massachusetts (282515) and active in the NPI registry since May 2013. He is enrolled in Medicare PECOS and maintains a secondary practice location in South Weymouth.
NPPES Registry Identity
Specialties & Licenses 2
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)
Jason Fischer M.d., M.ed. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Jason Fischer 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.
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 Jason Fischer's NPI number?
The NPI number for Jason Fischer is 1235574781. It was assigned to this individual provider in the NPPES registry on May 9, 2013.
Where is Jason Fischer located?
Jason Fischer practices at 300 Longwood Ave, Boston, MA 02115. The listed phone number is (617) 355-2425.
What is Jason Fischer's specialty?
The primary specialty registered for this NPI is Pediatrics, specializing in Pediatric Emergency Medicine, with taxonomy code 2080P0204X.
Is Jason Fischer enrolled in Medicare?
Yes. Jason Fischer is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Jason Fischer's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Jason Fischer 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 Jason Fischer's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Jason Fischer accept?
Health plans from Taro Health list Jason Fischer 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 Jason Fischer was last updated on July 12, 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.
# Jason Fischer, M.D., M.ED. · NPI 1235574781
Pediatric Emergency Medicine physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since May 9, 2013.
## Identity
- **NPI:** 1235574781 (Entity type: Individual)
- **Enumerated:** May 9, 2013
- **Primary specialty:** Pediatrics - Pediatric Emergency Medicine · taxonomy 2080P0204X
- **State license:** 282515 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 300 LONGWOOD AVE, Boston, MA 02115-5724
- **Phone:** (617) 355-2425
## 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:** July 12, 2021
---
Source: [NPI Profile](https://npiprofile.com/npi/1235574781) · Data from the CMS NPPES public registry.