Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Karen Elizabeth Boyle, M.D.
Urology Physician in Towson, MD · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1649237066
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Registry record
Entity type Individual (Type 1)
Name Karen Elizabeth Boyle
Credential M.D.
Sex Female
Practice address 6535 N Charles St, Suite 625, Towson, MD, 21204
Phone (410) 825-5454
Fax (410) 825-5811
Enumeration date Apr 28, 2006
Last updated in NPPES Apr 23, 2014
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 403644100 | Medicaid | MD | - |
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 Boyle?
The National Provider Identifier (NPI) for Karen Boyle is 1649237066, a Type 1 (individual) record in the CMS NPPES registry.
Where does Karen Boyle practice?
The practice location on file with NPPES is in Towson, MD. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Ann Fraker Specialist · Baltimore, MD NPI 1407851827 Francis Lee Endocrinology, Diabetes & Metabolism Physician · Baltimore, MD NPI 1861497828 George Apostolides Specialist · Towson, MD NPI 1972570158 David Goldstein Urology Physician · Baltimore, MD NPI 1740243906 Ronald Tutrone Urology Physician · Baltimore, MD NPI 1265495204 Irene Rovira Clinical Psychologist · Baltimore, MD NPI 1982658068 John Flowers Surgery Physician · Baltimore, MD NPI 1891735965 Joel Turner Surgery Physician · Baltimore, MD NPI 1225070386
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2014-04-23.