Stephen Larson, MD

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

License

36000 Issued in SC

Practice address

12303 De Paul Dr
Bridgeton, MO 63044-2512

Phone

(314) 344-6000

NPI assigned

Aug 31, 2006

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 GA, SC2 enrollments

Eligible to order & refer

• Part B services: Yes
• Medical equipment: Yes
• Home health: Yes
• Power mobility devices: Yes
• Hospice: Yes

Green means eligible to order or refer.

Enrollment records 2

Specialty

Emergency Medicine

Education

Emory University School of Medicine, 1988

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Sea Pines Circle Immediate Care, LLCGroup PAC ID 9931475910, 8 clinicians

Cep America LLCGroup PAC ID 6608056171, 995 clinicians

Southern Urgent Care LLCGroup PAC ID 4082802509, 5 clinicians

Beaufort County Memorial HospitalGroup PAC ID 7810809365, 197 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Beaufort County Memorial Hospital Hospital, Beaufort, SC, CCN 420067
• Novant Health Hilton Head Medical Center Hospital, Hilton Head Island, SC, CCN 420080

Merit-based Incentive Payment System (MIPS)

Final score

88.26 of 100Reported as group

Quality

85.41

Promoting interoperability

100

Improvement activities

40

Cost

75.45

Medicare enrollment (NPD)

Not enrolled

HHS exclusion list flag

CMS’s directory marks this NPI as on an HHS exclusion list; no matching OIG record was found. The OIG exclusions file (LEIE) holds no record for this NPI, and the directory does not say which list the flag comes from. How exclusions are shown Confirm with the OIG exclusions search.

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: stephen.larson.1@19132.direct.athenahealth.com
• FHIR API: https://api.platform.athenahealth.com/19132/brand/1/csg/1/fhir/r4

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.

• Beaufort County Memorial Hospital

  dba Beaufort Memorial Emergency Medicine Physicians

  • Emergency Medicine Physician
  • Beaufort, SC
  • NPI 1871335018
  Medicare reassignment Care Compare group NPD
• Sea Pines Circle Immediate Care, LLC

  • Urgent Care Clinic/Center
  • Hilton Head, SC
  • NPI 1275056715
  Medicare reassignment Care Compare group NPD
• Southern Urgent Care LLC

  • Urgent Care Clinic/Center
  • Savannah, GA
  • NPI 1205136470
  Medicare reassignment Care Compare group NPD
• Cep America LLC

  • Emergency Medicine Physician
  • Simpsonville, SC
  • NPI 1255170361
  Medicare reassignment Care Compare group
• Acs Emergency Physicians of SC PC

  • Emergency Medicine Physician
  • Beaufort, SC
  • NPI 1124355375
  Medicare reassignment NPD
• Acs Primary Care Physicians - Southeast PC

  • Emergency Medicine Physician
  • Myrtle Beach, SC
  • NPI 1861430555
  Medicare reassignment NPD
• Cep America LLC

  • Emergency Medicine Physician
  • Hilton Head Island, SC
  • NPI 1609689728
  NPD
• Cep America LLC

  • Emergency Medicine Physician
  • Fort Lauderdale, FL
  • NPI 1700747946
  NPD
• Midwest Emergency Associates de Paul LLC

  • Emergency Medicine Physician
  • Bridgeton, MO
  • NPI 1265479448
  NPD (past)
• Berkeley Emergency Medical Group, Inc.

  • Emergency Medicine Physician
  • Oakland, CA
  • NPI 1508874454
  NPD (past)
• Berkeley Emergency Medical Group, Inc.

  • Emergency Medicine Physician
  • Berkeley, CA
  • NPI 1780692632
  NPD (past)

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

• Beaufort County Memorial Hospital

  • General Acute Care Hospital
  • Beaufort, SC
  • NPI 1366436073
  Care Compare affiliation
• Hilton Head Medical Center LLC

  dba Novant Health Hilton Head Medical Center

  • General Acute Care Hospital
  • Hilton Head Island, SC
  • NPI 1902675101
  Care Compare affiliation

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

{
    "created_epoch": "1156982400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1771804800000",
    "number": "1386755775",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 4853",
            "city": "OAK BROOK",
            "state": "IL",
            "postal_code": "605224853",
            "telephone_number": "314-344-6000"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "12303 DE PAUL DR",
            "city": "BRIDGETON",
            "state": "MO",
            "postal_code": "630442512",
            "telephone_number": "314-344-6000"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LARSON",
        "first_name": "STEPHEN",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-08-31",
        "last_updated": "2026-02-23",
        "certification_date": "2026-02-23",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "MO",
            "license": "2003010856",
            "primary": false
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "SC",
            "license": "36000",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Abby Lambert
• Nathaniel Lambert
• Cristian Michael Lammoglia, DPM
• Olivia Lance
• Shannon P Landgraf, DPT
• Alexia Nicole Lata
• Sharon Lynn Latham, WHNP
• Ashley Latimore
• Laura W Laue, D.O.
• Leslie Launch, M.D.

• Emergency Medicine Physician in Bridgeton, MO
• Providers in Bridgeton, MO by specialty
• Emergency Medicine Physician in Missouri

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 23, 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.