Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Dr. Letitia M Deas, PHARM.D.

Pharmacist in Bethesda, MD · enumerated 2010.

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

National Provider Identifier

1821398991

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Registry record

Entity type Individual (Type 1)

Name Dr. Letitia M Deas

Credential PHARM.D.

Sex Female

Practice address 4701 Sangamore Rd, Bethesda, MD, 20816

Phone (301) 320-1773

Fax (301) 320-9111

Enumeration date Oct 23, 2010

Last updated in NPPES Oct 23, 2010

Taxonomy & licenses

183500000X Pharmacist Pharmacy Service Providers · License 15556 (MD) Primary

PHARMD · Doctor of Pharmacy: A licensed pharmacist with a professional doctorate in pharmacy. About the PHARMD 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

Is NPI 1821398991 active?

Yes, as of the latest NPPES snapshot, NPI 1821398991 is active (record last updated 2010-10-23).

How do I verify Letitia Deas's NPI record?

Cross-check NPI 1821398991 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 2010-10-23.