John Gleason Jr., MD

Primary specialty

Radiation Oncology PhysicianTaxonomy code 2085R0001X

License

MD.32447 Issued in AL

Practice address

201 Sivley Rd SW Ste 10
Huntsville, AL 35801-5138

Phone

(256) 319-5400

Fax

(256) 327-5977

NPI assigned

Mar 2, 2009

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 AL

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

Radiation Oncology

Education

Other, 2008

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Oncology Specialties, P.C.Group PAC ID 1254328495, 108 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Huntsville Hospital Hospital, Huntsville, AL, CCN 010039
• Athens Limestone Hospital Hospital, Athens, AL, CCN 010079
• Crestwood Medical Center Hospital, Huntsville, AL, CCN 010131

Merit-based Incentive Payment System (MIPS)

Final score

96.65 of 100Reported as individual

Quality

93.29

Improvement activities

40

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 and National Provider Directory roles.

• Oncology Specialties, P.C.

  • Hematology & Oncology Physician
  • Huntsville, AL
  • NPI 1669425716
  Medicare reassignment Care Compare group NPD
• Center for Cancer Care LLC

  • Radiation Oncology Physician
  • Huntsville, AL
  • NPI 1073538732
  NPD (past)
• Center for Cancer Care LLC

  • Radiation Oncology Physician
  • Huntsville, AL
  • NPI 1962427104
  NPD (past)

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

• Crestwood Healthcare LP

  • General Acute Care Hospital
  • Huntsville, AL
  • NPI 1023061496
  Care Compare affiliation
• HH Health System - Athens Limestone, LLC

  • General Acute Care Hospital
  • Athens, AL
  • NPI 1144695081
  Care Compare affiliation
• The Health Care Authority of the City of Huntsville

  • General Acute Care Hospital
  • Huntsville, AL
  • NPI 1447221056
  Care Compare affiliation

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

{
    "created_epoch": "1235952000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1769558400000",
    "number": "1457591539",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "PO BOX 18428",
            "city": "HUNTSVILLE",
            "state": "AL",
            "postal_code": "358048428",
            "telephone_number": "256-705-4224",
            "fax_number": "256-705-4135"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "201 SIVLEY RD SW STE 10",
            "city": "HUNTSVILLE",
            "state": "AL",
            "postal_code": "358015138",
            "telephone_number": "256-319-5400",
            "fax_number": "256-327-5977"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "3601 Cci Dr NW Ste 10",
            "address_purpose": "LOCATION",
            "city": "Huntsville",
            "state": "AL",
            "postal_code": "358052609",
            "country_code": "US",
            "telephone_number": "256-319-5400",
            "fax_number": "256-327-5977",
            "country_name": "United States",
            "address_type": "DOM"
        },
        {
            "address_1": "1 Hospital Dr SW Ste 100",
            "address_purpose": "LOCATION",
            "city": "Huntsville",
            "state": "AL",
            "postal_code": "358013495",
            "country_code": "US",
            "telephone_number": "256-319-5400",
            "fax_number": "256-327-5977",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "GLEASON",
        "first_name": "JOHN",
        "name_prefix": "Dr.",
        "name_suffix": "Jr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2009-03-02",
        "last_updated": "2026-01-28",
        "certification_date": "2026-01-28",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0001X",
            "taxonomy_group": "",
            "desc": "Radiology, Radiation Oncology",
            "state": "AL",
            "license": "MD.32447",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Christabel Glabog
• Gladden Counseling Services
• Glass Seating and Mobility
• Krystin Brianne Glass
• Morgan Glass, RN
• Jacob Stewart Glen, DC
• Laura Elizabeth Glenn, LICSW, PIP
• Jessica Kate Glover
• Pamela Elise Glover, RD, LD, MS, CDE
• Erin Gluff

• Radiation Oncology Physician in Huntsville, AL
• Providers in Huntsville, AL by specialty
• Radiation Oncology Physician in Alabama

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jan 28, 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.