Alexander Nicholas Diaz, MD

Primary specialty

Emergency Medicine PhysicianTaxonomy code 207P00000X

License

ME167124 Issued in FL

Practice address

500 Dr Martin Luther King Jr St N Ste 304
St Petersburg, FL 33705-1470

Phone

(727) 210-5253

Fax

(727) 290-4323

NPI assigned

Mar 31, 2019

Last updated

Aug 2, 2025By the provider in NPPES

Sex

Male

Sole proprietor

Yes

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

Specialties & licenses 3

Addresses

Medicare fee-for-service enrollment

Enrolled in TX, FL2 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

Univ of Central Florida, College of Medicine, 2019

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Bayside Emergency Physicians PAGroup PAC ID 6103988332, 19 clinicians

Emergency Medicine Services of FL LLCGroup PAC ID 8426413931, 686 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• St Anthonys Hospital Hospital, Saint Petersburg, FL, CCN 100067
• HCA Florida Blake Hospital Hospital, Bradenton, FL, CCN 100213

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles

Locations

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.

• Bayside Emergency Physicians PA

  • Emergency Medicine Physician
  • St Petersburg, FL
  • NPI 1396171518

  Single Specialty

  Medicare reassignment Care Compare group NPD
• Emergency Medicine Services of FL, LLC

  • Emergency Medicine Physician
  • Aventura, FL
  • NPI 1043917180

  Single Specialty

  Medicare reassignment Care Compare group NPD
• Paragon Emergency Services LLC

  • Emergency Medicine Physician
  • Winter Haven, FL
  • NPI 1912101650

  Single Specialty

  Medicare reassignment NPD
• Acs Primary Care Physicians Southwest, PA

  • Emergency Medicine Physician
  • Gainesville, TX
  • NPI 1538101019

  Single Specialty

  Medicare reassignment NPD
• Travis County Emergency Physicians PA

  • Emergency Medicine Physician
  • Austin, TX
  • NPI 1962440933

  Single Specialty

  Medicare reassignment NPD
• Usacs Integrated Acute Care Services of Texas, PLLC

  • Internal Medicine Physician
  • Cedar Park, TX
  • NPI 1801300322

  Single Specialty

  Medicare reassignment NPD
• Victoria Emergency Partners LLC

  • Emergency Medicine Physician
  • Gonzales, TX
  • NPI 1164770996

  Single Specialty

  Medicare reassignment NPD
• Brevard Physician Associates, PLLC

  • Anesthesiology Physician
  • Melbourne, FL
  • NPI 1598008955

  Single Specialty

  NPD
• Methodist Health Centers

  dba Houston Methodist Cypress Hospital

  • General Acute Care Hospital
  • Cypress, TX
  • NPI 1629828405
  NPD (past)

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

• HCA Health Services of Florida, Inc.

  dba HCA Florida Blake Hospital

  • General Acute Care Hospital
  • Bradenton, FL
  • NPI 1114964244
  Care Compare affiliation
• St. Anthonys Hospital, Inc.

  dba St. Anthonys Hospital

  • General Acute Care Hospital
  • St Petersburg, FL
  • NPI 1427024942
  Care Compare affiliation

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

{
    "created_epoch": "1553990400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1754092800000",
    "number": "1841751849",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3218 21ST ST N",
            "city": "ST PETERSBURG",
            "state": "FL",
            "postal_code": "337133055",
            "telephone_number": "954-218-1166"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "500 DR MARTIN LUTHER KING JR ST N STE 304",
            "city": "ST PETERSBURG",
            "state": "FL",
            "postal_code": "337051470",
            "telephone_number": "727-210-5253",
            "fax_number": "727-290-4323"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "DIAZ",
        "first_name": "ALEXANDER",
        "middle_name": "NICHOLAS",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2019-03-31",
        "last_updated": "2025-08-02",
        "certification_date": "2025-08-02",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207P00000X",
            "taxonomy_group": "193400000X SINGLE SPECIALTY  GROUP",
            "desc": "Emergency Medicine",
            "state": "TX",
            "license": "T3460",
            "primary": false
        },
        {
            "code": "390200000X",
            "taxonomy_group": "",
            "desc": "Student in an Organized Health Care Education/Training Program",
            "state": null,
            "license": null,
            "primary": false
        },
        {
            "code": "207P00000X",
            "taxonomy_group": "",
            "desc": "Emergency Medicine",
            "state": "FL",
            "license": "ME167124",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Diana Estorino (Expert Neurotechs)
• Diana L. Elias, M.D., P.a.
• Daniel P Diangelus, D.O.
• Virmarie Diaz Fernandez, MD
• Gabriela Victoria Diaz Zamora, APRN
• Christina M Diaz, MD
• Daniela Susana Diaz, RDN
• Elanda Elodiane Diaz, CCC-SLP
• Michael Diaz, MD
• Michelle Diaz, NRCPT

• Emergency Medicine Physician in St Petersburg, FL
• Providers in St Petersburg, FL by specialty
• Emergency Medicine Physician in Florida

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