Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mrs. Mary Lynn Severson, RPH
Pharmacist in Lusby, MD · enumerated 2011.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1538442488
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Registry record
Entity type Individual (Type 1)
Name Mrs. Mary Lynn Severson
Credential RPH
Sex Female
Practice address 11745 Rousby Hall Rd, Lusby, MD, 20657
Phone (410) 394-2730
Fax (410) 394-2736
Enumeration date Sep 27, 2011
Last updated in NPPES Sep 27, 2011
Taxonomy & licenses
RPH · Registered Pharmacist: A licensed pharmacist registered with a state board of pharmacy.
About the RPH 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.
Frequently asked questions
What specialty is Mary Severson?
Mary Severson is registered in NPPES with the primary taxonomy of Pharmacist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
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.
Other providers at this practice address
Browse all → Walgreen Co Pharmacy · Lusby, MD NPI 1639366651 Deborah Jorgensen Pharmacist · Lusby, MD NPI 1528349628 Tolulope Dehinbo Pharmacist · Lusby, MD NPI 1770824716 John White Pharmacist · Lusby, MD NPI 1407228919 Chinelo Nriezedi Pharmacist · Lusby, MD NPI 1437602687 Walgreen Co. Pharmacy · Lusby, MD NPI 1104671973 Donald Mcclintock Pharmacist · Lusby, MD NPI 1275376493
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2011-09-27.