Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Karen Nicholson
Health Educator in Waldorf, MD · enumerated 2020.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1942827720
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Registry record
Entity type Individual (Type 1)
Name Karen Nicholson
Sex Female
Practice address 11350 Pembrooke Sq, Waldorf, MD, 20603
Phone (301) 374-9214
Fax (301) 374-6979
Enumeration date Jun 29, 2020
Last updated in NPPES Jun 29, 2020
Taxonomy & licenses
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 Karen Nicholson?
The National Provider Identifier (NPI) for Karen Nicholson is 1942827720, a Type 1 (individual) record in the CMS NPPES registry.
Where does Karen Nicholson practice?
The practice location on file with NPPES is in Waldorf, MD. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Joseph Colonna Urology Physician · Waldorf, MD NPI 1801854179 Baljeet Sethi Neurology Physician · Waldorf, MD NPI 1316972482 Sharon Cave Adult Health Nurse Practitioner · Waldorf, MD NPI 1649372541 The Neurology Clinic, P.C. Neurology Physician · Waldorf, MD NPI 1235231325 Michael H Hotchkiss, M.D., P.A. Obstetrics & Gynecology Physician · Waldorf, MD NPI 1952479065 Michael Hotchkiss Obstetrics & Gynecology Physician · Waldorf, MD NPI 1326116401 Kelsey Blake Speech-Language Pathologist · Waldorf, MD NPI 1144908187 Janelle Jacobs Speech-Language Pathologist · Waldorf, MD NPI 1245007541
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2020-06-29.