Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. Keith Francis Holliday, R.N.
Registered Nurse in Frederick, MD · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1821130378
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Registry record
Entity type Individual (Type 1)
Name Mr. Keith Francis Holliday
Credential R.N.
Sex Male
Practice address 1434 Porter St, Frederick, MD, 21702
Phone (301) 619-0345
Enumeration date Feb 13, 2007
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
RN · Registered Nurse: A nurse who completed an accredited nursing program and passed the NCLEX-RN licensure exam.
About the RN 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 is the NPI number for Keith Holliday?
The National Provider Identifier (NPI) for Keith Holliday is 1821130378, a Type 1 (individual) record in the CMS NPPES registry.
Where does Keith Holliday practice?
The practice location on file with NPPES is in Frederick, MD. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Mary-Elizabeth Delmonte Family Medicine Physician · Fort Detrick, MD NPI 1952391377 Debra Bavari Family Medicine Physician · Frederick, MD NPI 1184600876 Darrell Apple Internal Medicine Physician · Frederick, MD NPI 1326024407 Tina Silver Family Medicine Physician · Fort Detrick, MD NPI 1740268630 Marta Vickers Family Nurse Practitioner · Fort Detrick, MD NPI 1760460968 Mamie Ruble Nurse Practitioner · Frederick, MD NPI 1255310058 Robert Schwartz Specialist · Fort Detrick, MD NPI 1063479715 Narayan Nair Internal Medicine Physician · Frederick, MD NPI 1518912724
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.