Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Benjamin M Landrum, MD

Infectious Disease Physician in Ellicott City, MD · enumerated 2006.

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

National Provider Identifier

1124131149

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Registry record

Entity type Individual (Type 1)

Name Dr. Benjamin M Landrum

Credential MD

Sex Male

Practice address 2850 N Ridge Rd, 102, Ellicott City, MD, 21043

Phone (410) 418-8550

Fax (410) 418-8552

Enumeration date Aug 16, 2006

Last updated in NPPES Jun 16, 2016

Taxonomy & licenses

207RI0200X Infectious Disease Physician Allopathic & Osteopathic Physicians · License D0057970 (MD) Primary

MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
402077400	Medicaid	MD	-
DA5812	Other	MD	RAILROAD MEDICARE GROUP #
KES7IN	Other	MD	CAREFIRST MARYLAND GRP #
G972	Other	MD	BLUECHOICE MARYLAND GRP #

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

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.

What specialty is Benjamin Landrum?

Benjamin Landrum is registered in NPPES with the primary taxonomy of Infectious Disease Physician. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2016-06-16.