Mark Risen Otstot

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

0110011626 Issued in VA

Practice address

1906 Belleview Ave SE
Roanoke, VA 24014-1838

Phone

(540) 981-7000

NPI assigned

Nov 13, 2025

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 VA

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, 2025

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Medicare enrollment (NPD)

Enrolled

State licenses

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

• Carilion Emergency Services, Inc.

  • Urgent Care Clinic/Center
  • Roanoke, VA
  • NPI 1255602694
  Medicare reassignment
• Carilion Giles Community Hospital

  • Critical Access Hospital
  • Pearisburg, VA
  • NPI 1194718304
  Medicare reassignment
• Carilion Healthcare Corporation

  • Multi-Specialty Clinic/Center
  • Roanoke, VA
  • NPI 1447206370
  Medicare reassignment
• Carilion Medical Center

  • Emergency Medicine Physician
  • Roanoke, VA
  • NPI 1649423815
  Medicare reassignment
• Carilion Medical Center

  • Multi-Specialty Clinic/Center
  • Roanoke, VA
  • NPI 1730123472
  Medicare reassignment
• Carilion Rockbridge Community Hospital

  • Multi-Specialty Clinic/Center
  • Lexington, VA
  • NPI 1174636021
  Medicare reassignment

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

{
    "created_epoch": "1762992000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1774396800000",
    "number": "1225998271",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "213 S JEFFERSON ST STE 1006",
            "city": "ROANOKE",
            "state": "VA",
            "postal_code": "240111713",
            "telephone_number": "540-224-5516"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1906 BELLEVIEW AVE SE",
            "city": "ROANOKE",
            "state": "VA",
            "postal_code": "240141838",
            "telephone_number": "540-981-7000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "OTSTOT",
        "first_name": "MARK",
        "middle_name": "RISEN",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2025-11-13",
        "last_updated": "2026-03-25",
        "certification_date": "2026-03-25",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "VA",
            "license": "0110011626",
            "primary": true
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Fabiola Ossio, RBT
• Amy J Ostermann, PA-C
• Jessica G. Ostrower, DPT
• Melinda Otey
• Chibuike Hereigns Oti
• Our Lady of the Valley, Inc.
• Over the Moon Speech Therapy
• Kinsey Overfelt
• Charlene M Overstreet, SLP
• Keith L Overstreet, LPC

• Physician Assistant in Roanoke, VA
• Providers in Roanoke, VA by specialty
• Physician Assistant in Virginia

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Mar 25, 2026; 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.