Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ms. Karen A Sweeney, R.N.
Registered Nurse in Frederick, MD · enumerated 2007.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1326233057
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Registry record
Entity type Individual (Type 1)
Name Ms. Karen A Sweeney
Credential R.N.
Sex Female
Practice address 1425 Porter St, Frederick, MD, 21702
Phone (301) 631-4832
Enumeration date Sep 6, 2007
Last updated in NPPES Sep 6, 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
Where does Karen Sweeney practice?
The practice location on file with NPPES is in Frederick, MD. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Karen Sweeney?
The National Provider Identifier (NPI) for Karen Sweeney is 1326233057, a Type 1 (individual) record in the CMS NPPES registry.
Other providers at this practice address
Browse all → Mitchell Meyers Public Health & General Preventive Medicine Physician · Fort Detrick, MD NPI 1831187962 Robert Rivard Infectious Disease Physician · Frederick, MD NPI 1629052121 Manmohan Ranadive Occupational Medicine Physician · Fort Detrick, MD NPI 1316924996 Eric Schoomaker Internal Medicine Physician · Frederick, MD NPI 1225048465 Bret Purcell Infectious Disease Physician · Frederick, MD NPI 1801808670 Arthur Brown Military Hospital · Fort Detrick, MD NPI 1679676514 Jeannine Haller Occupational Health Registered Nurse · Frederick, MD NPI 1285712232 Denise Clizbe Research Study Specialist · Frederick, MD NPI 1073690020
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-09-06.