Individual provider Active NPI

Adrian Grant Letz, MD

  • Allergy & Immunology Physician
  • Dubuque, IA
National Provider Identifier
1033221916
Registry record updated Apr 6, 2021
On this page

Key facts

NPPES NPI Registry
Primary specialty
Allergy & Immunology PhysicianTaxonomy code 207K00000X
License
43086 Issued in IA
Practice address
1515 Delhi St Ste 100
Dubuque, IA 52001-6320
Phone
(563) 557-9111
Fax
(563) 557-5560
NPI assigned
Aug 31, 2006
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Apr 6, 2021

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Allergy & Immunology Physician 207K00000X 43086 IA Primary

Addresses

Primary practice location

1515 Delhi St Ste 100
Dubuque, IA 52001-6320

Mailing address

1515 Delhi St Ste 100
Dubuque, IA 52001-6320
Phone (563) 557-9111

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in IA
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

Enrollment IDStateProvider typePAC IDDetails
I20160202001317 IA Practitioner - Allergy/Immunology 1153331715 Reassigns benefits to 1 organization

Care Compare profile

Medicare Care Compare
Specialty
Allergy/Immunology
Education
University of Texas Southwestern Medical School at Dallas, 2002
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices

Practice addresses (Care Compare)

1515 Delhi St
Suite 100
Dubuque, IA 52001-6320
Phone (563) 557-9111

4480 Utica Ridge Rd
Bettendorf, IA 52722-1644

4480 Utica Ridge Rd
Suite 160
Bettendorf, IA 52722-1637
Phone (563) 742-5950

Hospital & facility affiliations

National Provider Directory

National Provider Directory
Medicare enrollment (NPD)
Enrolled
Credentials
Doctor of Medicine

Practice roles

OrganizationSpecialtyStatusNew patients
Iowa Physicians Clinic Medical Foundation CurrentSince May 4, 2025 Accepting new patients
St Luke's Methodist Hospital Current Accepting new patients
Allergy Asthma and Immunology Center of Alaska LLC Allergy & Immunology PastSince Oct 3, 2015 Accepting new patients
Ptarmigan Pediatrics LLC Past Accepting new patients

Locations

4480 Utica Ridge Rd
Ste 160
Bettendorf, IA 52722
Phone (563) 742-5950

4480 Utica Ridge Rd
Ste 2230
Bettendorf, IA 52722
Phone (563) 742-5150

1515 Delhi St
Ste 100
Dubuque, IA 52001
Phone (319) 557-9111

Interoperability endpoints

  • Direct secure messaging: aletz369844@direct.unitypoint.org
  • Direct secure messaging: adrian.letz@grandrivermedicalgroup.eclinicaldirectplus.com

Organizations & group practices 4

Organizations this provider is connected to: Medicare benefit reassignments (the organization bills Medicare for this provider’s services), Care Compare group memberships, National Provider Directory roles and organizations whose NPPES authorized official is this provider.

Hospital & facility affiliations 1

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

NPI Registry JSON

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

{
    "created_epoch": "1156982400000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1617667200000",
    "number": "1033221916",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "1515 DELHI ST STE 100",
            "city": "DUBUQUE",
            "state": "IA",
            "postal_code": "520016320",
            "telephone_number": "563-557-9111",
            "fax_number": "563-557-5560"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1515 DELHI ST STE 100",
            "city": "DUBUQUE",
            "state": "IA",
            "postal_code": "520016320",
            "telephone_number": "563-557-9111",
            "fax_number": "563-557-5560"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "LETZ",
        "first_name": "ADRIAN",
        "middle_name": "GRANT",
        "name_prefix": "Dr.",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2006-08-31",
        "last_updated": "2021-04-06",
        "certification_date": "2021-04-06",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "207K00000X",
            "taxonomy_group": "",
            "desc": "Allergy & Immunology",
            "state": "IA",
            "license": "43086",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Dubuque, IA

Sources for this page

Verify at the official NPI Registry.