Ieon Lloyd Dawson, M.D.,F.A.C.C.

Primary specialty

Cardiovascular Disease PhysicianTaxonomy code 207RC0000X

License

D0047553 Issued in MD

Practice address

7700 Old Branch Ave
Suite B 205
Clinton, MD 20735-1628

Phone

(301) 877-4933

Fax

(301) 877-6963

NPI assigned

Nov 4, 2005

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 1

Addresses

Medicare fee-for-service enrollment

Enrolled in DC

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 1

Specialty

Cardiovascular Disease (Cardiology)Also: Internal Medicine

Education

Other, 1991

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Practice addresses (Care Compare)

Hospital & facility affiliations

• Medstar Southern Maryland Hospital Center Hospital, Clinton, MD, CCN 210062
• Medstar Washington Hospital Center Hospital, Washington, DC, CCN 090011

Merit-based Incentive Payment System (MIPS)

Final score

95.39 of 100Reported as individual

Quality

84.53

Promoting interoperability

99

Improvement activities

40

Cost

75.1

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• Direct secure messaging: ieon.dawson.p1@direct.heartmasters.nextgenshare.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.

• Heartmasters Medical Associates PC

  • Cardiovascular Disease Physician
  • Clinton, MD
  • NPI 1992860308

  DC

  Medicare reassignment NPD Authorized official
• Heartmasters Medical Associates PC

  • Cardiovascular Disease Physician
  • Washington, DC
  • NPI 1023812245
  NPD Authorized official
• Hospital Physician Services, LLLP

  • General Acute Care Hospital
  • Westminster, MD
  • NPI 1457302713

  Internal Medicine

  NPD (past)
• All Heart Medical Center

  • Cardiovascular Disease Physician
  • Washington, DC
  • NPI 1891811501
  NPD (past)

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

• Medstar Southern Maryland Hospital Center Inc

  • General Acute Care Hospital
  • Clinton, MD
  • NPI 1366790693
  Care Compare affiliation
• Medstar Washington Hospital Center

  • General Acute Care Hospital
  • Washington, DC
  • NPI 1548378235
  Care Compare affiliation

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

{
    "created_epoch": "1131062400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1787702400000",
    "number": "1790776961",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 3786",
            "city": "CROFTON",
            "state": "MD",
            "postal_code": "211143786",
            "telephone_number": "301-877-4933",
            "fax_number": "301-877-6963"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "7700 OLD BRANCH AVE",
            "address_2": "SUITE B 205",
            "city": "CLINTON",
            "state": "MD",
            "postal_code": "207351628",
            "telephone_number": "301-877-4933",
            "fax_number": "301-877-6963"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DAWSON",
        "first_name": "IEON",
        "middle_name": "LLOYD",
        "name_prefix": "Dr.",
        "credential": "M.D.,F.A.C.C.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2005-11-04",
        "last_updated": "2026-08-26",
        "certification_date": "2026-08-26",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RC0000X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Internal Medicine, Cardiovascular Disease",
            "state": "MD",
            "license": "D0047553",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Monique Davis, MBA, MS
• Aleata G. Dawkins, LCPC
• Carolyn G Dawkins, LCSWC
• Deon Allen Dawkins
• Dawn of a New Day Pastoral Counseling LLC
• DCPS
• Joshua Dearing, MD
• Jenny Dees, LGPC, NCC
• Lindsey Degeorge, MD
• Sheryl Punzal Deguzman-Buenaventura, NP

• Cardiovascular Disease Physician in Clinton, MD
• Providers in Clinton, MD by specialty
• Cardiovascular Disease Physician in Maryland

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 26, 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.