Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Mr. Mark Dwayne Asmussen, P.A.
Physician Assistant in Brenham, TX · enumerated 2011.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1134427602
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Registry record
Entity type Individual (Type 1)
Name Mr. Mark Dwayne Asmussen
Credential P.A.
Sex Male
Practice address 600 N Park St, Brenham, TX, 77833
Phone (979) 836-6153
Fax (979) 277-9074
Enumeration date Mar 8, 2011
Last updated in NPPES Sep 8, 2025
Taxonomy & licenses
363A00000X Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA07059 (TX) Primary
363AS0400X Surgical Physician Assistant Physician Assistants & Advanced Practice Nursing Providers · License PA07059 (TX) Secondary
PA · Physician Assistant: A licensed clinician who practices medicine in collaboration with physicians, trained in a graduate PA program.
About the PA credential
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| PA07059 | Other | TX | TEXAS STATE LICENSE |
| 309349401 | Medicaid | TX | - |
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 specialty is Mark Asmussen?
Mark Asmussen is registered in NPPES with the primary taxonomy of Physician Assistant. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
Other providers at this practice address
Browse all → Cassandra Bryant Pediatrics Physician · Brenham, TX NPI 1174526263 Kenneth Baker Pediatrics Physician · Brenham, TX NPI 1619970720 Paul Wenzlawsh Physician Assistant · Brenham, TX NPI 1376532366 Derek Husmann Pediatrics Physician · Brenham, TX NPI 1326026121 Kimberly Koehn Nurse Practitioner · Brenham, TX NPI 1730100686 Brenham Clinic Assn Pediatrics Physician · Brenham, TX NPI 1861500522 Kristen Meaders Physician Assistant · Brenham, TX NPI 1356451819 Aaron Campbell Obstetrics & Gynecology Physician · Brenham, TX NPI 1710088190
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2025-09-08.