Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mark Wilson Clancy, PA
Physician Assistant in Brenham, TX · enumerated 2022.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1609507334
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Registry record
Entity type Individual (Type 1)
Name Mark Wilson Clancy
Credential PA
Sex Male
Practice address 110 Highway 290 W, Brenham, TX, 77833
Phone (979) 830-5584
Fax (979) 277-7100
Enumeration date Jun 22, 2022
Last updated in NPPES Oct 9, 2024
Taxonomy & licenses
390200000X Student in an Organized Health Care Education/Training Program Student, Health Care Secondary
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA17808 (TX) Primary
PA · Physician Assistant: A licensed clinician who practices medicine in collaboration with physicians, trained in a graduate PA program.
About the PA 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
How do I verify Mark Clancy's NPI record?
Cross-check NPI 1609507334 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1609507334 active?
Yes, as of the latest NPPES snapshot, NPI 1609507334 is active (record last updated 2024-10-09).
Other providers at this practice address
Browse all →Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-10-09.