Mark Dwayne Asmussen, P.A.

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

PA07059 Issued in TX

Practice address

600 N Park St
Brenham, TX 77833-2610

Phone

(979) 836-6153

Fax

(979) 277-9074

NPI assigned

Mar 8, 2011

Last updated

Sep 8, 2025By the provider in NPPES

Sex

Male

Sole proprietor

No

Registry information is reported by the provider to CMS and is not verified. About this source

Specialties & licenses 2

Addresses

Medicare fee-for-service enrollment

Enrolled in TX

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Physician Assistant

Education

Other, 2010

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

TMH Physician Associates PLLCGroup PAC ID 4486711744, 1,881 clinicians

Houston Methodist Specialty PhysiciansGroup PAC ID 5193239796, 1,498 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Houston Methodist Cypress Hospital Hospital, Cypress, TX, CCN 670342

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: masmussen421361@direct.sw.org

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

• Houston Methodist Specialty Physicians

  • Otolaryngology Physician
  • Houston, TX
  • NPI 1902614332
  Medicare reassignment Care Compare group NPD
• TMH Physician Associates PLLC

  • Ophthalmology Physician
  • Houston, TX
  • NPI 1275779225
  Medicare reassignment Care Compare group NPD
• Regional Employee Assistance Program Inc

  • Family Medicine Physician
  • Corsicana, TX
  • NPI 1649232984
  Medicare reassignment NPD
• TMH Physician Associates PLLC

  • Orthopaedic Surgery Physician
  • Spring, TX
  • NPI 1043061351
  NPD
• College Station RHC Company LLC

  dba Brenham Clinic

  • Clinical Medical Laboratory
  • Brenham, TX
  • NPI 1508193822
  NPD (past)
• Timberland Medical Group

  • Family Medicine Physician
  • Cedar Park, TX
  • NPI 1528061157

  Physician Assistant

  NPD (past)
• TMH Physician Associates PLLC

  dba TMHPO Orthopedics Department

  • Orthopaedic Surgery Physician
  • Pearland, TX
  • NPI 1386827442
  NPD (past)
• Wound Care Center of Houston Inc

  • Medical Physician Assistant
  • Houston, TX
  • NPI 1578506754
  NPD (past)

Hospitals and other facilities this clinician is affiliated with according to Medicare Care Compare.

• Methodist Health Centers

  dba Houston Methodist Cypress Hospital

  • General Acute Care Hospital
  • Cypress, TX
  • NPI 1629828405
  Care Compare affiliation

The complete NPPES record for this NPI in the NPI Registry API format.

{
    "created_epoch": "1299542400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1757289600000",
    "number": "1134427602",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 844658",
            "city": "DALLAS",
            "state": "TX",
            "postal_code": "752844658"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "600 N PARK ST",
            "city": "BRENHAM",
            "state": "TX",
            "postal_code": "778332610",
            "telephone_number": "979-836-6153",
            "fax_number": "979-277-9074"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "ASMUSSEN",
        "first_name": "MARK",
        "middle_name": "DWAYNE",
        "name_prefix": "Mr.",
        "credential": "P.A.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2011-03-08",
        "last_updated": "2025-09-08",
        "certification_date": "2025-09-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "TX",
            "license": "PA07059",
            "primary": true
        },
        {
            "code": "363AS0400X",
            "taxonomy_group": "",
            "desc": "Physician Assistant, Surgical",
            "state": "TX",
            "license": "PA07059",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Jonathan Charles Ames, DDS
• Jared Dean Anderson, M.D.
• Gail Lynn Andrejczak, FNP-C
• Gary L Appelt, MD
• Arlene's Embracing Angels LLC
• Aviva Home Health Incorporated
• B & W Optical Dispensing Co
• B & W Optical Dispensing Company
• Khoi Minh Bach, MD
• Brian Baird, D.D.S.

• Physician Assistant in Brenham, TX
• Providers in Brenham, TX by specialty
• Physician Assistant in Texas

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 8, 2025; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• Medicare enrollment (CMS PECOS): enrollments, PAC IDs and benefit reassignments; Order and Referring.
• Medicare Care Compare (CMS): clinician profile, group practices, facility affiliations, MIPS scores and star ratings.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.