Geoffrey Douglas Block, MD

Primary specialty

Gastroenterology PhysicianTaxonomy code 207RG0100X

License

57637 Issued in AZ

Practice address

4407 N Sabino Mountain Dr
Tucson, AZ 85750-6927

Phone

(412) 967-9450

NPI assigned

Jul 7, 2005

Sex

Male

Sole proprietor

No

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

Specialties & licenses 6

Addresses

Medicare fee-for-service enrollment

Enrolled in AZ

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

Internal MedicineAlso: Gastroenterology

Education

Other, 1986

Medicare assignment

Accepts the Medicare-approved amount as payment in full

Group practices

Banner-University Medical GroupGroup PAC ID 7719899871, 1,066 clinicians

Practice addresses (Care Compare)

Hospital & facility affiliations

• Banner - University Medical Center Tucson Campus Hospital, Tucson, AZ, CCN 030064
• Adventist Health Lodi Memorial Hospital, Lodi, CA, CCN 050336
• Banner-University Medical Center South Campus Hospital, Tucson, AZ, CCN 030111

Merit-based Incentive Payment System (MIPS)

Final score

93.34 of 100Reported as apm

Quality

74.56

Promoting interoperability

99

Improvement activities

40

Procedures performed for Medicare patients

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.

• Banner-University Medical Group

  • Multi-Specialty Clinic/Center
  • Phoenix, AZ
  • NPI 1508809427

  Family Medicine

  Medicare reassignment Care Compare group NPD
• Banner-University Medical Group

  • Durable Medical Equipment & Medical Supplies
  • Tucson, AZ
  • NPI 1922820935
  NPD
• Eisenhower Medical Center

  dba Eisenhower Health

  • General Acute Care Hospital
  • Rancho Mirage, CA
  • NPI 1013981554
  NPD (past)
• Reddy Medical Associates

  • Gastroenterology Physician
  • New Kensington, PA
  • NPI 1598866774
  NPD (past)
• Windber Hospital, Inc.

  dba Windber Medical Center

  • General Acute Care Hospital
  • Windber, PA
  • NPI 1275620536
  NPD (past)

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

• Banner - University Medical Center South Campus LLC

  • General Acute Care Hospital
  • Tucson, AZ
  • NPI 1558759498
  Care Compare affiliation
• Banner - University Medical Center South Campus LLC

  • Nutrition Education Nutritionist
  • Tucson, AZ
  • NPI 1922660182

  Hospital

  Care Compare affiliation
• Banner - University Medical Center Tucson Campus LLC

  • General Acute Care Hospital
  • Tucson, AZ
  • NPI 1265820179
  Care Compare affiliation
• Banner - University Medical Center Tucson Campus LLC

  • Nutrition Education Nutritionist
  • Tucson, AZ
  • NPI 1861102881

  Hospital

  Care Compare affiliation
• Lodi Memorial Hospital Association Inc

  dba Lodi Memorial Hospital

  • General Acute Care Hospital
  • Lodi, CA
  • NPI 1316938301
  Care Compare affiliation

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

{
    "created_epoch": "1120694400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1784246400000",
    "number": "1942208608",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "4407 N SABINO MOUNTAIN DR",
            "city": "TUCSON",
            "state": "AZ",
            "postal_code": "857506927",
            "telephone_number": "412-967-9450"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "4407 N SABINO MOUNTAIN DR",
            "city": "TUCSON",
            "state": "AZ",
            "postal_code": "857506927",
            "telephone_number": "412-967-9450"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "BLOCK",
        "first_name": "GEOFFREY",
        "middle_name": "DOUGLAS",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2005-07-07",
        "last_updated": "2026-07-17",
        "certification_date": "2026-07-17",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RT0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Transplant Hepatology",
            "state": "CA",
            "license": "G131448",
            "primary": false
        },
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "AZ",
            "license": "57637",
            "primary": true
        },
        {
            "code": "207RT0003X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Transplant Hepatology",
            "state": "AZ",
            "license": "57637",
            "primary": false
        },
        {
            "code": "207RG0100X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Gastroenterology",
            "state": "CA",
            "license": "131448",
            "primary": false
        },
        {
            "code": "207RI0008X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hepatology",
            "state": "AZ",
            "license": "57637",
            "primary": false
        },
        {
            "code": "207RI0008X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Hepatology",
            "state": "CA",
            "license": "G131448",
            "primary": false
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• BLG Dental PLLC (Desert Ridge Family Dental)
• Sarah Bligh, RDN
• Scott Edward Blinkoff, M.D.
• Casey D Blitt, MD
• Kenneth Sherman Blocher, D.P.M.
• Marcia Marie Block
• Randy Block, BS-HIS
• Mariah Blodgett, PMHNP
• Rubye Lee Bloeser, MA, CCC-SLP
• Kathryn Blohm

• Gastroenterology Physician in Tucson, AZ
• Providers in Tucson, AZ by specialty
• Gastroenterology Physician in Arizona

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jul 17, 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.