Samuel Casey Morrison

Primary specialty

Physician AssistantTaxonomy code 363A00000X

License

PA031489 Issued in DC

Practice address

2041 Georgia Ave NW
Washington, DC 20059

Phone

(202) 865-6100

NPI assigned

May 31, 2018

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 DC, VA, FL3 enrollments

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 3

Specialty

Physician Assistant

Education

Other, 2018

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Privia Medical Group, LLCGroup PAC ID 4385682061, 1,522 clinicians

Practice addresses (Care Compare)

Merit-based Incentive Payment System (MIPS)

Final score

87.3 of 100Reported as group

Quality

70.94

Improvement activities

40

Cost

92.94

Merit-based Incentive Payment System (MIPS)

Final score

81.6 of 100Reported as group

Quality

76.36

Improvement activities

40

Medicare enrollment (NPD)

Enrolled

Credentials

Physician Assistant

State licenses

Practice roles

Locations

Interoperability endpoints

• FHIR API: https://api.platform.athenahealth.com/8042/brand/1/csg/1/fhir/r4
• Direct secure messaging: samuel.morrison.2@8042.direct.athenahealth.com

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.

• Privia Medical Group, LLC

  • Internal Medicine Physician
  • Arlington, VA
  • NPI 1013042480

  DC

  Medicare reassignment Care Compare group NPD
• Emergency Medicine Associates P.a., P.C.

  • Emergency Medicine Physician
  • Falls Church, VA
  • NPI 1134117393

  DC

  Medicare reassignment NPD
• Virginia Emergency Medicine Assoicates, LTD

  • Emergency Medical Services (Emergency Medicine) Physician
  • Warrenton, VA
  • NPI 1700988664
  Medicare reassignment NPD
• Cep America LLC

  • Emergency Medicine Physician
  • Washington, DC
  • NPI 1073914396
  Medicare reassignment
• Cep America, LLC

  • Emergency Medicine Physician
  • Miramar Beach, FL
  • NPI 1295442614
  Medicare reassignment
• Emergency Medicine Associates, P.a.,P.C.

  • Internal Medicine Physician
  • Dulles, VA
  • NPI 1376917070
  Medicare reassignment
• Fair Oaks Emergency Physicians, PLLC

  • Emergency Medical Services (Emergency Medicine) Physician
  • Fairfax, VA
  • NPI 1649203605

  DC

  Medicare reassignment
• Privia Care Center LLC

  • Internal Medicine Physician
  • Arlington, VA
  • NPI 1164874426

  DC

  Medicare reassignment
• Cep America LLC

  • Emergency Medicine Physician
  • Fort Lauderdale, FL
  • NPI 1700747946
  NPD
• Cep America LLC

  • Emergency Medicine Physician
  • Pensacola, FL
  • NPI 1841165628
  NPD
• Cep America LLC

  • Emergency Medicine Physician
  • Silver Spring, MD
  • NPI 1851286041
  NPD
• Emergency Medicine Associates P.a., P.C.

  • Internal Medicine Physician
  • Culpeper, VA
  • NPI 1881559102
  NPD

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

{
    "created_epoch": "1527724800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1750204800000",
    "number": "1518459049",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "2987 DISTRICT AVE APT 517",
            "city": "FAIRFAX",
            "state": "VA",
            "postal_code": "220311537",
            "telephone_number": "571-218-2891"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "2041 GEORGIA AVE NW",
            "city": "WASHINGTON",
            "state": "DC",
            "postal_code": "20059",
            "telephone_number": "202-865-6100"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MORRISON",
        "first_name": "SAMUEL",
        "middle_name": "CASEY",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2018-05-31",
        "last_updated": "2025-06-18",
        "certification_date": "2025-06-18",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "FL",
            "license": "PA09119529",
            "primary": false
        },
        {
            "code": "363A00000X",
            "taxonomy_group": "",
            "desc": "Physician Assistant",
            "state": "DC",
            "license": "PA031489",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Marylee Ashley Morrison, PHD
• Monica Morrison
• Nicole Aisha Morrison, PA-C
• Ronald Morrison
• Ryan Graham Morrison, DO
• Sephora Naomi Morrison, MD
• Sunsearaya Morrison
• Yolland Mellody Morrison
• Greta Morrissette, FNP
• Jason Robert Morrissette, PA

• Physician Assistant in Washington, DC
• Providers in Washington, DC by specialty
• Physician Assistant in District of Columbia

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 18, 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.