Roberto J Diaz, MD

Primary specialty

Gastroenterology PhysicianTaxonomy code 207RG0100X

License

ME0071926 Issued in FL

Practice address

Adventhealth Medical Group Gastroenterology & Hepatolog
4325 Sun N. Lake Blvd
Sebring, FL 33872

Phone

(863) 402-3310

Fax

(863) 664-7710

NPI assigned

Apr 10, 2006

Last updated

Feb 3, 2026By the provider in NPPES

Sex

Male

Sole proprietor

No

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 FL

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

GastroenterologyAlso: Internal Medicine

Education

Other, 1986

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Adventist Health System-Sunbelt IncGroup PAC ID 0749232445, shared by 8 NPIs, 100 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Adventhealth Sebring Hospital, Sebring, FL, CCN 100109

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

Networks

• Optimum HealthCare HMO Network
• Freedom Health HMO Network

Interoperability endpoints

• Direct secure messaging: rdiaz3822444@adventhealth.direct-ci.com

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

• Adventist Health System-Sunbelt Inc

  dba AdventHealth Cancer Institute Sebring

  • General Acute Care Hospital
  • Sebring, FL
  • NPI 1083692594
  Medicare reassignment NPD
• Adventist Health System-Sunbelt Inc

  dba AdventHealth Medical Group Cardiology & Vascular Medicine at Wauchula

  • Family Medicine Physician
  • Wauchula, FL
  • NPI 1578725941
  Medicare reassignment NPD
• Thakkar Patel & Avalos MD's LLC

  • Gastroenterology Physician
  • Sebring, FL
  • NPI 1972565612
  Medicare reassignment NPD
• Adventist Health System-Sunbelt Inc

  dba AdventHealth Family Medicine Wauchula

  • Rural Health Clinic/Center
  • Wauchula, FL
  • NPI 1396046637
  NPD
• Adventist Health System-Sunbelt Inc

  dba Adventhealth Family and Lifestyle Medicine Avon Park

  • Rural Health Clinic/Center
  • Avon Park, FL
  • NPI 1881850956
  NPD
• Adventist Health System-Sunbelt Inc

  dba AdventHealth Medical Group Breast Surgery, Ear Nose & Throat, General Surgery at Sun N Lake

  • Internal Medicine Physician
  • Sebring, FL
  • NPI 1164698809

  Gastroenterology

  NPD (past)
• Thakkar Anesthesia Associates PA

  • Anesthesiology Physician
  • Sebring, FL
  • NPI 1518238831
  NPD (past)

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

• Adventist Health System-Sunbelt Inc

  dba AdventHealth Cancer Institute Sebring

  • General Acute Care Hospital
  • Sebring, FL
  • NPI 1083692594
  Care Compare affiliation

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

{
    "created_epoch": "1144627200000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770076800000",
    "number": "1306809512",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4325 SUN N LAKE BLVD",
            "city": "SEBRING",
            "state": "FL",
            "postal_code": "338722171",
            "telephone_number": "863-402-3310",
            "fax_number": "863-664-7710"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "ADVENTHEALTH MEDICAL GROUP GASTROENTEROLOGY & HEPATOLOG",
            "address_2": "4325 SUN N. LAKE BLVD",
            "city": "SEBRING",
            "state": "FL",
            "postal_code": "33872",
            "telephone_number": "863-402-3310",
            "fax_number": "863-664-7710"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "3581 S Highlands Ave",
            "address_purpose": "LOCATION",
            "city": "Sebring",
            "state": "FL",
            "postal_code": "338705410",
            "country_code": "US",
            "telephone_number": "863-385-5129 x212",
            "fax_number": "863-385-7162",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "DIAZ",
        "first_name": "ROBERTO",
        "middle_name": "J",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-04-10",
        "last_updated": "2026-02-03",
        "certification_date": "2026-02-03",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "FL",
            "license": "ME0071926",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Diana Deane Carr
• Sishnarine Dianand, RPT
• Eva Shirley Dias
• Keren Diaz Rodriguez
• Raquel Diaz, RDH
• Paul Didorchuk, MD
• Melissa Dieter, PA-C
• Digital Hearing Aid Outlet Inc. (Digital Hearing Aid Outlet)
• Peter K Dillon, DDS
• Lawrence Joseph Disipio, P.T.,A.T.C.

• Gastroenterology Physician in Sebring, FL
• Providers in Sebring, FL by specialty
• Gastroenterology Physician in Florida

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 3, 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.