REBECCA P BYSTROM MD
NPI 1396277117
Internal Medicine - Hematology in Boston, MA
About Rebecca P Bystrom Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
REBECCA P BYSTROM MD (NPI 1396277117) is an individual hematology provider in Boston, Massachusetts, licensed in Massachusetts (1015711) and active in the NPI registry since March 2017. She is enrolled in Medicare PECOS, is affiliated with Duke University Hospital, and maintains a secondary practice location in Boston.
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 and accepts Medicare assignment
Rebecca P Bystrom Md 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 Reassignments
2Medicare enrollment records show Rebecca Bystrom reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Durham, NC 27704
- Reassigned Medicare billing, North Carolina enrollment
- 1,482 clinicians in this Medicare group
Raleigh, NC 27609
- Reassigned Medicare billing, North Carolina enrollment
- 3,671 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Duke University Hospital
Acute Care Hospitals · Durham, NCPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 02114 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 02114
BOSTON, MA 02114
BOSTON, MA 02114
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 Rebecca Bystrom's NPI number?
The NPI number for Rebecca Bystrom is 1396277117. It was assigned to this individual provider in the NPPES registry on March 30, 2017.
Where is Rebecca Bystrom located?
Rebecca Bystrom practices at 55 Fruit St, Boston, MA 02114. The listed phone number is (617) 231-9943.
What is Rebecca Bystrom's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Hematology, with taxonomy code 207RH0000X.
Is Rebecca Bystrom enrolled in Medicare?
Yes. Rebecca Bystrom 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 organizations bill Medicare for Rebecca Bystrom's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Rebecca Bystrom reassigns Medicare benefits to 2 organizations: Duke University Health System, Inc. (Durham, NC) and Duke Health Integrated Practice, Inc (Raleigh, NC). Each 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 Rebecca Bystrom's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Rebecca Bystrom accept?
Health plans from Ambetter from Absolute Total Care, Ambetter of North Carolina, Ambetter of Tennessee, Blue Cross and Blue Shield of NC and Cigna Healthcare list Rebecca Bystrom 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.
Is Rebecca Bystrom affiliated with any hospitals?
According to CMS data, Rebecca Bystrom is affiliated with Duke University Hospital.
When was this NPI record last updated?
The NPPES record for Rebecca Bystrom was last updated on September 16, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 35 days 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.
# Rebecca P Bystrom, MD · NPI 1396277117
Hematology physician in Boston, Massachusetts. Individual provider, active in the CMS NPPES registry since March 30, 2017.
## Identity
- **NPI:** 1396277117 (Entity type: Individual)
- **Enumerated:** March 30, 2017
- **Primary specialty:** Internal Medicine - Hematology · taxonomy 207RH0000X
- **State license:** 1015711 (Massachusetts)
- **Sole proprietor:** No
## Practice location
- **Address:** 55 FRUIT ST, Boston, MA 02114-2621
- **Phone:** (617) 231-9943
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 2 organizations under Medicare reassignment (form CMS-855R): Duke University Health System, Inc. (NPI 1962721308, Durham, NC); Duke Health Integrated Practice, Inc (NPI 1780374884, Raleigh, NC) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2016
## Record status
- **NPPES last updated:** September 16, 2026
---
Source: [NPI Profile](https://npiprofile.com/npi/1396277117) · Data from the CMS NPPES public registry.