Type 2 · Organization ✓ Active NPI ✓ Valid NPI checksum

Baltimore Diagnostics Solutions LLC

Clinical Medical Laboratory in Owings Mills, MD · enumerated 2019 · authorized official Rodney Blockston, Owner.

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

National Provider Identifier

1558921940

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Registry record

Entity type Organization (Type 2)

Legal business name Baltimore Diagnostics Solutions LLC

Practice address 3706 Crondall Ln Ste 101c, Owings Mills, MD, 21117

Phone (410) 807-8579

Enumeration date Jun 18, 2019

Last updated in NPPES Jan 11, 2021

Taxonomy & classification

291U00000X Clinical Medical Laboratory Laboratories Primary

Authorized official

Name Rodney Blockston

Title Owner

Phone (410) 303-9923

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 is a Type 2 NPI?

A Type 2 NPI identifies an organization (group practice, hospital, pharmacy, lab), while Type 1 NPIs identify individual providers. Organizations bill under their Type 2 NPI.

What type of organization is Baltimore Diagnostics Solutions LLC?

Baltimore Diagnostics Solutions LLC is registered in NPPES as a Clinical Medical Laboratory (its primary provider taxonomy).

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2021-01-11.