Michael L Armstrong, ARNP

Primary specialty

Nurse PractitionerTaxonomy code 363L00000X

License

APRN9237484 Issued in FL

Practice address

1 Tampa General Cir
Suite A327
Tampa, FL 33606-3571

Phone

(813) 844-4396

Fax

(813) 844-4972

NPI assigned

Jan 15, 2009

Sex

Male

Sole proprietor

No

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

Specialties & licenses 3

Addresses

Other names 1

• Michael Lawrence Armstrong Professional name

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: No

Green means eligible to order or refer.

Enrollment records 1

Specialty

Nurse Practitioner

Education

Other, 2008

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Gulf-to-Bay Anesthesiology Associates LLCGroup PAC ID 5092628156, 330 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Tampa General Hospital Hospital, Tampa, FL, CCN 100128

Medicare enrollment (NPD)

Enrolled

Credentials

Nurse Practitioner

State licenses

Practice roles (3 of 4)

Locations

Networks

• Freedom Health HMO Network

Interoperability endpoints

• Direct secure messaging: marmstrong23056@direct.tgh.org
• FHIR API: https://epicproxy.et0761.epichosted.com/FHIRProxy/api/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.

• Gulf-to-Bay Anesthesiology Associates LLC

  • Anesthesiology Physician
  • Tampa, FL
  • NPI 1720039746

  Critical Care Medicine, FL

  Medicare reassignment Care Compare group NPD
• Gulf-to-Bay Anesthesiology Associates LLC

  • Anesthesiology Physician
  • Largo, FL
  • NPI 1316205339
  NPD
• Tampa General Hospital

  • General Acute Care Hospital
  • Tampa, FL
  • NPI 1124558929
  NPD

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

• Florida Health Sciences Center Inc

  • General Acute Care Hospital
  • Tampa, FL
  • NPI 1235196510

  Hospital

  Care Compare affiliation

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

{
    "created_epoch": "1231977600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1787788800000",
    "number": "1679710453",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1 TAMPA GENERAL CIR STE A327",
            "city": "TAMPA",
            "state": "FL",
            "postal_code": "336063571",
            "telephone_number": "813-844-4396",
            "fax_number": "813-844-4972"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1 TAMPA GENERAL CIR",
            "address_2": "SUITE A327",
            "city": "TAMPA",
            "state": "FL",
            "postal_code": "336063571",
            "telephone_number": "813-844-4396",
            "fax_number": "813-844-4972"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "12902 Usf Magnolia Dr",
            "address_purpose": "LOCATION",
            "city": "Tampa",
            "state": "FL",
            "postal_code": "336129416",
            "country_code": "US",
            "telephone_number": "813-745-7365",
            "fax_number": "813-449-8618",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ARMSTRONG",
        "first_name": "MICHAEL",
        "middle_name": "L",
        "credential": "ARNP",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2009-01-15",
        "last_updated": "2026-08-27",
        "certification_date": "2026-08-27",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207LC0200X",
            "taxonomy_group": "",
            "desc": "Anesthesiology, Critical Care Medicine",
            "state": "FL",
            "license": "APRN9237484",
            "primary": false
        },
        {
            "code": "363L00000X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner",
            "state": "FL",
            "license": "APRN9237484",
            "primary": true
        },
        {
            "code": "363LA2200X",
            "taxonomy_group": "",
            "desc": "Nurse Practitioner, Adult Health",
            "state": "FL",
            "license": "ARNP9237484",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": [
        {
            "first_name": "MICHAEL",
            "last_name": "ARMSTRONG",
            "middle_name": "LAWRENCE",
            "credential": "ARNP",
            "code": "2",
            "type": "Professional Name"
        }
    ]
}

• John Hulse Armstrong, MD
• Kathleen Armstrong, PHD
• Leah Armstrong
• Lindsey Armstrong, LMSW
• Lisa Kay Armstrong, LCSW
• Paul A Armstrong, DO
• Phuc Armstrong, D.C.
• Rufus S Armstrong, MD
• Theresa Jessup Armstrong
• Katera Armwood

• All providers in Tampa, FL
• Nurse Practitioner in Florida

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Aug 27, 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.