Individual provider Active NPI

Jonathan S Ehrhardt, M.D.

  • Diagnostic Radiology Physician
  • Tucson, AZ
National Provider Identifier
1639205289
Registry record updated Jul 8, 2007
On this page

Key facts

NPPES NPI Registry
Primary specialty
Diagnostic Radiology PhysicianTaxonomy code 2085R0202X
License
35414 Issued in AZ
Practice address
1501 N Campbell Ave
Dept. of Radiology
Tucson, AZ 85724-5067
Phone
(520) 626-7402
Fax
(520) 626-2941
NPI assigned
Feb 26, 2007
Sex
Male
Sole proprietor
Yes

NPPES NPI Registry

Updated by the provider on Jul 8, 2007

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

Specialties & licenses 1

Specialty (taxonomy)CodeLicenseStatePrimary
Diagnostic Radiology Physician 2085R0202X 35414 AZ Primary

Addresses

Primary practice location

1501 N Campbell Ave
Dept. of Radiology
Tucson, AZ 85724-5067

Mailing address

3970 N River Bluff PL
Tucson, AZ 85750-2057
Phone (520) 290-1105

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in WI, IL2 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

Enrollment IDStateProvider typePAC IDDetails
I20070607000347 WI Practitioner - Diagnostic Radiology 4789782228 Reassigns benefits to 2 organizations
I20220812002172 IL Practitioner - Radiation Oncology 4789782228 Reassigns benefits to 3 organizations

Care Compare profile

Medicare Care Compare
Specialty
Diagnostic Radiology
Education
Other, 2002
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Mercy Health System CorporationGroup PAC ID 7416860440, shared by 14 NPIs, 749 clinicians
Rockford Health PhysiciansGroup PAC ID 2567374036, 520 clinicians

Practice addresses (Care Compare)

1000 Mineral Point Ave
Janesville, WI 53548-2940
Phone (608) 756-6508

1038 E Geneva St
Delavan, WI 53115-1921
Phone (262) 728-4301

217 N Main St
Edgerton, WI 53534-1613
Phone (608) 884-9431

2310 1St Ctr Ave
Brodhead, WI 53520-1937
Phone (608) 897-8664

2825 Prairie Ave
Beloit, WI 53511-1844
Phone (608) 363-5500

300 Union St
Evansville, WI 53536-1175
Phone (608) 882-5613

3400 Deerfield Dr
Janesville, WI 53546-3557
Phone (608) 314-3660

350 Peller Rd
Lake Geneva, WI 53147-4543
Phone (262) 249-0221

352 Peller Rd
Lake Geneva, WI 53147-4543
Phone (262) 248-4467

3524 E Milwaukee St
Janesville, WI 53546-1626
Phone (608) 756-7100

507 W Main St
Whitewater, WI 53190-1852
Phone (262) 473-0400

519 W Main St
Whitewater, WI 53190-1852
Phone (262) 473-0410

557 N Washington St
Janesville, WI 53548-2907
Phone (608) 755-7880

725 S Janesville St
Milton, WI 53563-1775
Phone (608) 868-5800

8201 E Riverside Blvd
Rockford, IL 61114-2300
Phone (815) 971-2000

849 Kellogg Ave
Janesville, WI 53546-2808
Phone (608) 755-7960

901 Grant St
Harvard, IL 60033-1821
Phone (815) 943-5431

N2950 State Rd
Suite 67
Lake Geneva, WI 53147-2655
Phone (608) 756-7100

Hospital & facility affiliations

  • Mercy Health System Corp Hospital, Janesville, WI, CCN 520066
  • Mercy Walworth Hospital & Medical Center Hospital, Lake Geneva, WI, CCN 521357
  • Javon Bea Hospital Hospital, Rockford, IL, CCN 140239
  • Mercyhealth Hospital & Physician Clinic-Crystal la Hospital, Crystal Lake, IL, CCN 140308
  • Edgerton Hospital and Health Services Hospital, Edgerton, WI, CCN 521319

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
35414AZMDDiagnostic Radiology Physician

Practice roles

OrganizationSpecialtyStatusNew patients
Mercy Health System Corporation Current Accepting new patients
Mercy Harvard Hospital Inc CurrentSince Dec 1, 2025 Accepting new patients
Mercy Harvard Hospital Inc CurrentSince Dec 1, 2025 Accepting new patients
Mercy Health System Corporation CurrentSince May 3, 2008 Accepting new patients
Mercy Health System Corporation CurrentSince May 3, 2008 Accepting new patients
Rockford Health Physicians CurrentSince Sep 9, 2025 Accepting new patients

Locations

29624 Network Pl
Chicago, IL 60673
Phone (608) 741-7652

901 Grant St
Harvard, IL 60033
Phone (815) 943-5431

348 S Division St
Harvard, IL 60033
Phone (815) 943-1122

8201 E Riverside Blvd
Rockford, IL 61114
Phone (815) 971-4066

2300 N Rockton Ave
Rockford, IL 61103
Phone (815) 971-5510

2000 Lake Ave
Woodstock, IL 60098
Phone (815) 337-4116

1000 Mineral Point Ave
Janesville, WI 53548
Phone (608) 261-6868

N2950 State Road 67
Lake Geneva, WI 53147
Phone (262) 245-0535

Interoperability endpoints

  • Direct secure messaging: jehrhardt1927@direct.mhemail.org

Organizations & group practices 6

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.

Hospital & facility affiliations 6

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": "1172448000000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1183852800000",
    "number": "1639205289",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "3970 N RIVER BLUFF PL",
            "city": "TUCSON",
            "state": "AZ",
            "postal_code": "857502057",
            "telephone_number": "520-290-1105"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "1501 N CAMPBELL AVE",
            "address_2": "DEPT. OF RADIOLOGY",
            "city": "TUCSON",
            "state": "AZ",
            "postal_code": "857245067",
            "telephone_number": "520-626-7402",
            "fax_number": "520-626-2941"
        }
    ],
    "practiceLocations": [],
    "basic": {
        "last_name": "EHRHARDT",
        "first_name": "JONATHAN",
        "middle_name": "S",
        "name_prefix": "Dr.",
        "credential": "M.D.",
        "sole_proprietor": "YES",
        "sex": "M",
        "enumeration_date": "2007-02-26",
        "last_updated": "2007-07-08",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "AZ",
            "license": "35414",
            "primary": true
        }
    ],
    "identifiers": [],
    "endpoints": [],
    "other_names": []
}

Other providers in Tucson, AZ

Sources for this page

Verify at the official NPI Registry.