NPIMap

Individual provider Active NPI

Rebecca P Bystrom, MD

  • Hematology (Internal Medicine) Physician
  • Boston, MA
National Provider Identifier
1396277117
Registry record updated Sep 16, 2026
On this page

Key facts

NPPES NPI Registry
Primary specialty
Hematology (Internal Medicine) PhysicianTaxonomy code 207RH0000X
License
1015711 Issued in MA
Practice address
55 Fruit St
Boston, MA 02114-2621
Phone
(617) 231-9943
NPI assigned
Mar 30, 2017
Sex
Female
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Sep 16, 2026

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Hematology (Internal Medicine) Physician 207RH0000X 1015711 MA Primary

Addresses

Primary practice location

55 Fruit St
Boston, MA 02114-2621

Mailing address

55 Fruit St
Boston, MA 02114-2621

Other practice location 1

75 Francis St
Boston, MA 02115-6110
Phone (617) 732-5500

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in ME, NC2 enrollments
Eligible to order & refer
  • Part B services
  • Medical equipment
  • Home health
  • Power mobility devices
  • Hospice
Green means eligible to order or refer.

Enrollment records 2

Enrollment IDStateProvider typePAC IDDetails
I20200806001497 ME Practitioner - HospitalistPractitioner - Internal Medicine 8628341336 Reassigns benefits to 1 organization
I20250415003897 NC Practitioner - Hematology/Oncology 8628341336 Reassigns benefits to 2 organizations

Care Compare profile

Medicare Care Compare
Specialty
Hematology/Oncology
Education
Other, 2016
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Telehealth
Offers telehealth services
Group practices
Duke Health Integrated Practice IncGroup PAC ID 8325412737, 3,140 clinicians

Practice addresses (Care Compare)

2301 Erwin Rd
Durham, NC 27705-4699
Phone (919) 684-8111

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

Practice roles

OrganizationSpecialtyStatusNew patients
Maine Medical Partners Internal Medicine CurrentSince Jul 15, 2020 Accepting new patients
Duke Health Integrated Practice, Inc. CurrentSince Mar 19, 2025 Accepting new patients
Maine Medical Partners CurrentSince Jul 15, 2020 Accepting new patients
Maine Medical Partners Current Accepting new patients

Locations

22 Bramhall St
Portland, ME 04102
Phone (207) 662-2179

100 Campus Dr
Unit 107
Scarborough, ME 04074
Phone (207) 396-7565

584 Roosevelt Trl
Windham, ME 04062
Phone (207) 892-3216

3643 N Roxboro St
Durham, NC 27704
Phone (919) 470-6186

2301 Erwin Rd
Durham, NC 27705
Phone (919) 668-0289

2400 Pratt St
Durham, NC 27705
Phone (919) 668-1002

40 Duke Medicine Cir
Durham, NC 27710
Phone (919) 681-6588

3400 Wake Forest Rd
Raleigh, NC 27609
Phone (919) 954-3000

Interoperability endpoints

  • Direct secure messaging: rbystrom618546@direct.medicine.duke.edu
  • Direct secure messaging: rbystrom174802@direct.mmc.mainehealth.org

Organizations & group practices 5

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships and National Provider Directory roles.

Hospital & facility affiliations 6

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

NPI Registry JSON

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1490832000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1789516800000",
    "number": "1396277117",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "55 FRUIT ST",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021142621"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "55 FRUIT ST",
            "city": "BOSTON",
            "state": "MA",
            "postal_code": "021142621",
            "telephone_number": "617-231-9943"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "75 Francis St",
            "address_purpose": "LOCATION",
            "city": "Boston",
            "state": "MA",
            "postal_code": "021156110",
            "country_code": "US",
            "telephone_number": "617-732-5500",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "BYSTROM",
        "first_name": "REBECCA",
        "middle_name": "P",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "F",
        "enumeration_date": "2017-03-30",
        "last_updated": "2026-09-16",
        "certification_date": "2026-09-16",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RH0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hematology",
            "state": "MA",
            "license": "1015711",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Boston, MA

Sources for this page

Verify at the official NPI Registry.