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Rebecca P Bystrom, MD

Hematology (Internal Medicine) Physician in Boston, MA · enumerated 2017.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1396277117

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Registry record

Entity type Individual (Type 1)
Name Rebecca P Bystrom
Credential MD
Sex Female
Practice address 55 Fruit St, Boston, MA, 02114
Phone (617) 231-9943
Enumeration date Mar 30, 2017
Last updated in NPPES Sep 16, 2026

Taxonomy & licenses

207RH0000X Hematology (Internal Medicine) Physician Allopathic & Osteopathic Physicians · License 1015711 (MA) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

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Frequently asked questions

Where does Rebecca Bystrom practice?
The practice location on file with NPPES is in Boston, MA. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Rebecca Bystrom?
The National Provider Identifier (NPI) for Rebecca Bystrom is 1396277117, a Type 1 (individual) record in the CMS NPPES registry.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2026-09-16.