Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ellen Rachel Lancaster, FNP-BC
Nurse Practitioner in Fallston, MD · enumerated 2023.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1497530224
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Registry record
Entity type Individual (Type 1)
Name Ellen Rachel Lancaster
Credential FNP-BC
Sex Female
Practice address 2307 Bel Air Rd, Fallston, MD, 21047
Phone (410) 929-6051
Fax (410) 907-7278
Enumeration date Aug 29, 2023
Last updated in NPPES Mar 14, 2025
Taxonomy & licenses
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License R209407 (MD) Secondary
363L00000X Nurse Practitioner Physician Assistants & Advanced Practice Nursing Providers · License 95026338 (CA) Primary
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 Ellen Lancaster?
Ellen Lancaster is registered in NPPES with the primary taxonomy of Nurse Practitioner. 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.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-03-14.