Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Mark Wayne Ball, MD
Urology Physician in Bethesda, MD · enumerated 2008.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1275783375
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Registry record
Entity type Individual (Type 1)
Name Dr. Mark Wayne Ball
Credential MD
Sex Male
Practice address 10 Center Drive Rm 2-5942, Bethesda, MD, 20892
Phone (240) 858-3700
Enumeration date Sep 25, 2008
Last updated in NPPES Jan 2, 2019
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD 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 Mark Ball practice?
The practice location on file with NPPES is in Bethesda, MD. Providers can have multiple locations; NPPES lists the primary practice address.
What is the NPI number for Mark Ball?
The National Provider Identifier (NPI) for Mark Ball is 1275783375, a Type 1 (individual) record in the CMS NPPES registry.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2019-01-02.