Grant Sizemore, M.D.

Primary specialty

Surgery PhysicianTaxonomy code 208600000X

License

MD-56679 Issued in IA

Practice address

1000 Langworthy St
Dubuque, IA 52001-7313

Phone

(563) 584-3450

Fax

(563) 584-3171

NPI assigned

Jun 23, 2015

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 HI, GA2 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

General Surgery

Education

University of South Florida College of Medicine, 2015

Medicare assignment

May accept Medicare assignment

Practice addresses (Care Compare)

Hospital & facility affiliations

• Mercyone Dubuque Medical Center Hospital, Dubuque, IA, CCN 160069

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.

• Augusta Surgical Group, P.C.

  • Surgery Physician
  • Augusta, GA
  • NPI 1275626038
  Medicare reassignment NPD
• Kapiolani Medical Specialists

  dba Hawaii Pacific Health Medical Group

  • Multi-Specialty Clinic/Center
  • Honolulu, HI
  • NPI 1124071014
  Medicare reassignment NPD

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

• Mercy Medical Center-Dubuque

  dba MercyOne Dubuque Medical Center

  • General Acute Care Hospital
  • Dubuque, IA
  • NPI 1659348506
  Care Compare affiliation

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

{
    "created_epoch": "1435017600000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1782691200000",
    "number": "1942682281",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1500 ASSOCIATES DR",
            "city": "DUBUQUE",
            "state": "IA",
            "postal_code": "520022201"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1000 LANGWORTHY ST",
            "city": "DUBUQUE",
            "state": "IA",
            "postal_code": "520017313",
            "telephone_number": "563-584-3450",
            "fax_number": "563-584-3171"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "SIZEMORE",
        "first_name": "GRANT",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2015-06-23",
        "last_updated": "2026-06-29",
        "certification_date": "2026-06-29",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "208600000X",
            "taxonomy_group": "",
            "desc": "Surgery",
            "state": "IA",
            "license": "MD-56679",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

• Jerica Michelle Singleton, PHARMD
• Mark J Singsank, M.D.
• Colin M Sinnott, RPH
• Christine A Sinsky, M.D.
• Thomas Anthony Sinsky, M.D.
• Amanda Marie Skahill
• Elaina Rose Skeen
• Rachel Ann Skoff, PHARM.D., BCACP
• Slade Eyewear Emporium
• Daniel D Slagel, M.D.

• Surgery Physician in Dubuque, IA
• Providers in Dubuque, IA by specialty
• Surgery Physician in Iowa

• NPPES NPI Registry (CMS): identity, addresses, specialties, licenses, identifiers and endpoints. Last updated by the provider on Jun 29, 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.