Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Alexander James Johnson, MD

Hematology & Oncology Physician in Bismarck, ND · enumerated 2017.

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

National Provider Identifier

1275055956

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Registry record

Entity type Individual (Type 1)

Name Alexander James Johnson

Credential MD

Sex Male

Practice address 701 E Rosser Ave, Bismarck, ND, 58501

Phone (701) 323-8550

Enumeration date Jul 13, 2017

Last updated in NPPES Jul 30, 2025

Taxonomy & licenses

207R00000X Internal Medicine Physician Allopathic & Osteopathic Physicians · License 125071518 (IL) Secondary

207RX0202X Medical Oncology Physician Allopathic & Osteopathic Physicians · License 89411 (SC) Secondary

207RH0003X Hematology & Oncology Physician Allopathic & Osteopathic Physicians · License 22378 (ND) 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.

Read the full guide → Validate an NPI →

Frequently asked questions

What specialty is Alexander Johnson?

Alexander Johnson is registered in NPPES with the primary taxonomy of Hematology & Oncology Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

Is this the official NPI registry?

No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-07-30.