Sean James Dikdan, M.D., M.P.H.

Primary specialty

Cardiovascular Disease PhysicianTaxonomy code 207RC0000X

License

C1-0028078 Issued in DE

Practice address

200 Hygeia Dr Ste 1360
Newark, DE 19713-2049

Phone

(302) 623-1929

Fax

(302) 368-7943

NPI assigned

Apr 12, 2017

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 4

Addresses

Medicare fee-for-service enrollment

Enrolled in DE, MD2 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

Cardiovascular Disease (Cardiology)Also: Cardiac Electrophysiology

Education

Other, 2017

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Telehealth

Offers telehealth services

Group practices

Christiana Care Health Services IncGroup PAC ID 9739097569, 1,480 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Christiana Hospital Hospital, Newark, DE, CCN 080001
• Union Hospital of Cecil County Hospital, Elkton, MD, CCN 210032

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Interoperability endpoints

• FHIR API: https://fhir-myrecord.cerner.com/r4/5c7467fb-60f9-4172-add4-57667a5dfcfa/

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.

• Christiana Care Health Services, Inc

  • Endocrinology, Diabetes & Metabolism Physician
  • Wilmington, DE
  • NPI 1770568107
  Medicare reassignment Care Compare group NPD
• Union Hospital of Cecil County

  • Internal Medicine Physician
  • Elkton, MD
  • NPI 1124067848
  Medicare reassignment NPD
• Christiana Care Health Services, Inc

  • Cardiovascular Disease Physician
  • Newark, DE
  • NPI 1003850504
  NPD
• Christiana Care Health Services Inc

  • Neurology Physician
  • Chadds Ford, PA
  • NPI 1881228484
  NPD
• Union Hospital of Cecil County

  • Speech-Language Pathologist
  • Elkton, MD
  • NPI 1033865993
  NPD
• Christiana Care Health Services, Inc

  • Family Medicine Physician
  • Hockessin, DE
  • NPI 1134104565

  Internal Medicine

  NPD (past)
• Christiana Care Health Services, Inc

  • Interventional Cardiology Physician
  • Wilmington, DE
  • NPI 1902876394

  Cardiovascular Disease

  NPD (past)

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

• Christiana Care Health Services, Inc.

  • General Acute Care Hospital
  • Wilmington, DE
  • NPI 1134194038
  Care Compare affiliation
• Union Hospital of Cecil County

  • General Acute Care Hospital
  • Elkton, MD
  • NPI 1376523357
  Care Compare affiliation

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

{
    "created_epoch": "1491955200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1756771200000",
    "number": "1770017121",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "200 HYGEIA DR STE 1360",
            "city": "NEWARK",
            "state": "DE",
            "postal_code": "197132049",
            "telephone_number": "302-623-1929",
            "fax_number": "302-368-7943"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "200 HYGEIA DR STE 1360",
            "city": "NEWARK",
            "state": "DE",
            "postal_code": "197132049",
            "telephone_number": "302-623-1929",
            "fax_number": "302-368-7943"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DIKDAN",
        "first_name": "SEAN",
        "middle_name": "JAMES",
        "credential": "M.D., M.P.H.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2017-04-12",
        "last_updated": "2025-09-02",
        "certification_date": "2025-09-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "DE",
            "license": "C1-0028078",
            "primary": false
        },
        {
            "code": "207R00000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine",
            "state": "MD",
            "license": "D0104523",
            "primary": false
        },
        {
            "code": "207RC0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Cardiovascular Disease",
            "state": "MD",
            "license": "D0104523",
            "primary": false
        },
        {
            "code": "207RC0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Cardiovascular Disease",
            "state": "DE",
            "license": "C1-0028078",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Justin D Dietrich, D.C.
• Martha Diffley
• Digitrace Care Services Inc
• Michael A. Dignazio, MD
• Digni Day Services
• Jonathan Dillen
• Kristi Dillon, DC
• Elizabeth Dilorenzo
• Stella Dilts
• Christina L Dimarco, APN

• Cardiovascular Disease Physician in Newark, DE
• Providers in Newark, DE by specialty
• Cardiovascular Disease Physician in Delaware

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Sep 2, 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.