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Sleep Diagnostic Institute

Clinic/Center in Hyattsville, MD · enumerated 2008 · authorized official Santonio Johnson, Respiratory Care Practitioner.

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

National Provider Identifier

1043476047

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Registry record

Entity type Organization (Type 2)
Legal business name Sleep Diagnostic Institute
Practice address 7515 Annapolis Rd, 207, Hyattsville, MD, 20784
Phone (301) 429-0098
Fax (301) 429-0093
Enumeration date Jul 30, 2008
Last updated in NPPES Jul 30, 2008

Taxonomy & classification

261Q00000X Clinic/Center Ambulatory Health Care Facilities · License L0001393 (MD) Primary

Authorized official

Name Santonio Johnson
Title Respiratory Care Practitioner
Phone (301) 429-0098

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

How current is this record?
Data comes from the CMS NPPES public dissemination file; this record was last updated in NPPES on 2008-07-30. Verify at npiregistry.cms.hhs.gov.
Where is Sleep Diagnostic Institute located?
The practice location on file with NPPES is in Hyattsville, MD.

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Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-07-30.