Timothy M Marshall, MD

Primary specialty

Cardiovascular Disease PhysicianTaxonomy code 207RC0000X

License

22934 Issued in AZ

Practice address

5121 N Camino Antonio
Tucson, AZ 85718-6009

Phone

(520) 240-9299

NPI assigned

Jul 21, 2006

Sex

Male

Sole proprietor

Yes

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

Not listed in the public Medicare enrollment file

Medicare enrollment (NPD)

Enrolled

Credentials

Doctor of Medicine

Practice roles

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.

• Dr. Gann'S Diet of Hope LLC

  • Internal Medicine Physician
  • Tucson, AZ
  • NPI 1780943696
  NPD (past)
• Tucson Heart Group, PLC

  • Cardiovascular Disease Physician
  • Tucson, AZ
  • NPI 1265445001
  NPD (past)
• Frederick Health Hospital Inc

  • General Acute Care Hospital
  • Frederick, MD
  • NPI 1538165527
  NPD (past)

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

{
    "created_epoch": "1153440000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1770163200000",
    "number": "1427079987",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "5121 N CAMINO ANTONIO",
            "city": "TUCSON",
            "state": "AZ",
            "postal_code": "857186009",
            "telephone_number": "520-240-9299"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "5121 N CAMINO ANTONIO",
            "city": "TUCSON",
            "state": "AZ",
            "postal_code": "857186009",
            "telephone_number": "520-240-9299"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "MARSHALL",
        "first_name": "TIMOTHY",
        "middle_name": "M",
        "credential": "MD",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2006-07-21",
        "last_updated": "2026-02-04",
        "certification_date": "2026-02-04",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207RC0000X",
            "taxonomy_group": "",
            "desc": "Internal Medicine, Cardiovascular Disease",
            "state": "AZ",
            "license": "22934",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Dana Marshall, N.P.
• Debra Marshall, LAMFT
• Kimberly Marshall, MSW
• Sabrina Marshall
• Spencer Steele Marshall, PHARMD
• William N Marshall, M.D.
• Laurence Marsteller, M.D
• Edgardo Martan, PTA
• Jonathan Robert Martens, ACNP
• Martha Flores, PHD, OT, LLC

• Cardiovascular Disease Physician in Tucson, AZ
• Providers in Tucson, AZ by specialty
• Cardiovascular Disease Physician in Arizona

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Feb 4, 2026; self-reported and not verified by CMS. Specialty names from the NUCC taxonomy.
• National Provider Directory (CMS): practice roles, locations, licenses, networks and endpoints.

Verify at the official NPI Registry.