Gary S. Allen, M.D.

Primary specialty

Thoracic Surgery (Cardiothoracic Vascular Surgery) PhysicianTaxonomy code 208G00000X

License

ME80476 Issued in FL

Practice address

7780 S Broadway Ste 170
Littleton, CO 80122-2633

Phone

(303) 269-2920

Fax

(303) 269-2921

NPI assigned

Jun 27, 2005

Sex

Male

Sole proprietor

No

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

Specialties & licenses 2

Addresses

Other identifiers 1

Medicare fee-for-service enrollment

Enrolled in FL, CO2 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

Thoracic Surgery

Education

Albany Medical College of Union University, 1991

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Florida Hospital Healthcare Partners, Inc 621 clinicians

Portercare Adventist Health System 770 clinicians

Florida Hospital Medical Group Inc 1,735 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Vitas Healthcare of Dothan Hospice, Dothan, AL, CCN 011577
• Adventhealth Waterman Hospital, Tavares, FL, CCN 100057

Merit-based Incentive Payment System (MIPS)

Final score

79.91 of 100Reported as group

Quality

61.18

Promoting interoperability

100

Improvement activities

40

Cost

71.86

Procedures performed for Medicare patients

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

State licenses

Practice roles (9 of 11)

Locations

Networks

• Freedom Health HMO Network
• Optimum HealthCare HMO Network

Interoperability endpoints

• Direct secure messaging: gallen56690@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 and National Provider Directory roles.

• Florida Hospital Healthcare Partners, Inc

  • Internal Medicine Physician
  • Daytona Beach, FL
  • NPI 1780100529

  FL

  Medicare reassignment Care Compare group NPD
• Portercare Adventist Health System

  • Otolaryngology Physician
  • Greenwood Village, CO
  • NPI 1760761928

  CO

  Medicare reassignment Care Compare group
• Florida Hospital Medical Group Inc

  • Family Medicine Physician
  • Orlando, FL
  • NPI 1225034234

  FL

  Medicare reassignment Care Compare group
• Orlando Health Medical Group Inc

  • Internal Medicine Physician
  • Orlando, FL
  • NPI 1669429577

  FL

  Medicare reassignment NPD
• Portercare Adventist Health System

  • General Acute Care Hospital
  • Parker, CO
  • NPI 1386651297
  Care Compare group
• Portercare Adventist Health System

  • Psychiatric Hospital Unit
  • Denver, CO
  • NPI 1497763262
  Care Compare group
• Portercare Adventist Health System

  • Specialty Pharmacy
  • Denver, CO
  • NPI 1558374900
  Care Compare group
• Portercare Adventist Health System

  • Community Based Hospice Care Agency
  • Centennial, CO
  • NPI 1568573442
  Care Compare group
• Portercare Adventist Health System

  • General Acute Care Hospital
  • Littleton, CO
  • NPI 1689688988
  Care Compare group
• Portercare Adventist Health System

  • Cardiac Rehabilitation Clinic/Center
  • Littleton, CO
  • NPI 1750832382
  Care Compare group
• Portercare Adventist Health System

  • General Acute Care Hospital
  • Denver, CO
  • NPI 1801800594
  Care Compare group
• Portercare Adventist Health System

  • General Acute Care Hospital
  • Louisville, CO
  • NPI 1891709192
  Care Compare group

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

• Florida Hospital Waterman Inc

  • General Acute Care Hospital
  • Tavares, FL
  • NPI 1821019571

  Hospital

  Care Compare affiliation
• Vitas Healthcare Corporation of Florida

  • Community Based Hospice Care Agency
  • Dothan, AL
  • NPI 1497707962

  Hospice

  Care Compare affiliation

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

{
    "created_epoch": "1119830400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1765324800000",
    "number": "1154327872",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "7780 S BROADWAY STE 170",
            "city": "LITTLETON",
            "state": "CO",
            "postal_code": "801222633"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "7780 S BROADWAY STE 170",
            "city": "LITTLETON",
            "state": "CO",
            "postal_code": "801222633",
            "telephone_number": "303-269-2920",
            "fax_number": "303-269-2921"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "1222 S Orange Ave Fl 3",
            "address_purpose": "LOCATION",
            "city": "Orlando",
            "state": "FL",
            "postal_code": "328061215",
            "country_code": "US",
            "telephone_number": "321-841-3356",
            "fax_number": "321-841-7799",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "3310 Waterman Way",
            "address_purpose": "LOCATION",
            "city": "Tavares",
            "state": "FL",
            "postal_code": "327785250",
            "country_code": "US",
            "telephone_number": "352-343-1216",
            "fax_number": "352-343-1582",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ALLEN",
        "first_name": "GARY",
        "middle_name": "S.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-06-27",
        "last_updated": "2025-12-10",
        "certification_date": "2025-12-10",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208G00000X",
            "taxonomy_group": "",
            "desc": "Thoracic Surgery (Cardiothoracic Vascular Surgery)",
            "state": "FL",
            "license": "ME80476",
            "primary": true
        },
        {
            "code": "208G00000X",
            "taxonomy_group": "",
            "desc": "Thoracic Surgery (Cardiothoracic Vascular Surgery)",
            "state": "CO",
            "license": "DR.0073193",
            "primary": false
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "258936200",
            "state": "FL"
        }
    ],
    "endpoints": [],
    "other_names": []
}

• All Seasons Hospice
• Brenna Allard, RD
• Allen Chiropractic Clinic PC
• Autumn Allen
• Carrie A Allen, P.A.
• Jamie Aileen Allen, PA-C
• Janine Allen, DC
• Allied Foot and Ankle Clinics of Co, PC
• Almond Tree Senior Care
• Alpenglow Gynecology and Medical Spa, LLC

• All providers in Littleton, CO
• Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician in Colorado

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Dec 10, 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.