Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Sean P Grady, D.C.

Chiropractor in Owings Mills, MD · enumerated 2010.

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

National Provider Identifier

1821320409

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Registry record

Entity type Individual (Type 1)

Name Dr. Sean P Grady

Credential D.C.

Sex Male

Practice address 7920 Mcdonogh Rd, Suite 101, Owings Mills, MD, 21117

Phone (410) 356-9939

Fax (410) 356-9987

Enumeration date Feb 5, 2010

Last updated in NPPES Mar 1, 2012

Taxonomy & licenses

111N00000X Chiropractor Chiropractic Providers · License 03654 (MD) Secondary

111N00000X Chiropractor Chiropractic Providers · License S03654 (MD) Primary

DC · Doctor of Chiropractic: A licensed chiropractor focusing on musculoskeletal and nervous system disorders. About the DC 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

Is NPI 1821320409 active?

Yes, as of the latest NPPES snapshot, NPI 1821320409 is active (record last updated 2012-03-01).

How do I verify Sean Grady's NPI record?

Cross-check NPI 1821320409 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2012-03-01.