Individual provider Active NPI

Johnny O Alexander, MD

  • Diagnostic Radiology Physician
  • Chicago, IL
National Provider Identifier
1649439043
Registry record updated Jul 28, 2025
On this page

Key facts

NPPES NPI Registry
Primary specialty
Diagnostic Radiology PhysicianTaxonomy code 2085R0202X
License
316970 Issued in NY
Practice address
3753 S Cottage Grove Ave Ste 101
Chicago, IL 60653-1662
Phone
(708) 216-9000
NPI assigned
Jun 2, 2008
Sex
Male
Sole proprietor
No

NPPES NPI Registry

Updated by the provider on Jul 28, 2025

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

Specialties & licenses 4

Specialty (taxonomy)CodeLicenseStatePrimary
Diagnostic Radiology Physician 2085R0202X MD210012291 DC
Diagnostic Radiology Physician 2085R0202X 0101243293 VA
Diagnostic Radiology Physician 2085R0202X 36128037 IL
Diagnostic Radiology Physician 2085R0202X 316970 NY Primary

Addresses

Primary practice location

3753 S Cottage Grove Ave Ste 101
Chicago, IL 60653-1662

Mailing address

Uva Health Services Foundation
P.O. Box 9007
Charlottesville, VA 22908-0001
Phone (434) 295-1000

Other practice location 1

2041 Georgia Ave NW # 1R84
Washington, DC 20060-1662
Phone (202) 865-3610

Other identifiers 1

IdentifierTypeStateIssuer
1649439043MedicaidVA

Medicare participation

Medicare enrollment files
Medicare fee-for-service enrollment
Enrolled in GA, FL, NY, MD, DC5 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 5

Enrollment IDStateProvider typePAC IDDetails
I20090707000239 GA Practitioner - Diagnostic Radiology 9234201906 Reassigns benefits to 4 organizations
I20150305000748 FL Practitioner - Diagnostic RadiologyPractitioner - Interventional Radiology 9234201906 Reassigns benefits to 1 organization
I20221114001296 NY Practitioner - Diagnostic Radiology 9234201906 Reassigns benefits to 2 organizations
I20230118000770 MD Practitioner - Diagnostic Radiology 9234201906 Reassigns benefits to 1 organization
I20230803002631 DC Practitioner - Diagnostic Radiology 9234201906 Reassigns benefits to 4 organizations

Care Compare profile

Medicare Care Compare
Specialty
Diagnostic Radiology
Education
Saint Louis University School of Medicine, 2002
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Professional Services of Holy Cross 159 clinicians
Mori Bean and Brooks Inc 966 clinicians
Howard University 182 clinicians
Lifebridge Community Physicians Inc 183 clinicians
Eastpointe Radiologists PC 112 clinicians
Jamaica Hospital 252 clinicians
Blackwell Physicians, LLC 67 clinicians

Practice addresses (Care Compare)

1500 Forest Glen Rd
Silver Spring, MD 20910-1460
Phone (301) 754-7000

1900 Tebeau St
Waycross, GA 31501-6357
Phone (904) 399-5550

2001 Kingsley Ave
Orange Park, FL 32073-5148
Phone (904) 399-5550

2041 Georgia NW Ave
Washington, DC 20060-0001
Phone (202) 865-6679

2401 W Belvedere Ave
LBH Medical Group Teleradiology
Baltimore, MD 21215-5216
Phone (410) 601-9000

765 Cooper Sandy CV
Alpharetta, GA 30004-0803
Phone (586) 464-0731

8900 Van Wyck Expy
Jamaica, NY 11418-2832
Phone (718) 206-6601

9901 Medical Ctr Dr
Rockville, MD 20850-3357
Phone (240) 826-6074

Hospital & facility affiliations

  • Sinai Hospital of Baltimore Hospital, Baltimore, MD, CCN 210012
  • Holy Cross Hospital Hospital, Silver Spring, MD, CCN 210004
  • HCA Florida Fawcett Hospital Hospital, Port Charlotte, FL, CCN 100236
  • HCA Florida Highlands Hospital Hospital, Sebring, FL, CCN 100049
  • HCA Florida Gulf Coast Hospital Hospital, Panama City, FL, CCN 100242

Merit-based Incentive Payment System (MIPS)

Final score
92.19 of 100Reported as group
Quality
82.16
Promoting interoperability
79
Improvement activities
40
Cost
75.98

Merit-based Incentive Payment System (MIPS)

Final score
83.23 of 100Reported as group
Quality
60.26
Promoting interoperability
100
Improvement activities
40
Cost
76.75

National Provider Directory

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

State licenses

LicenseStateTypeSpecialty
MD210012291DCMDDiagnostic Radiology Physician
36128037ILMDDiagnostic Radiology Physician
0101243293VAMDDiagnostic Radiology Physician

Practice roles (25 of 31)

OrganizationSpecialtyStatusNew patients
Diagnostic Imaging Specialists PA Diagnostic Radiology CurrentSince Dec 5, 2017 Accepting new patients
Professional Services of Holy Cross CurrentSince Jun 20, 2023 Accepting new patients
Lifebridge Community Physicians Inc CurrentSince Dec 12, 2022 Accepting new patients
Lima Memorial Professional Corporation CurrentSince Jan 1, 2024 Accepting new patients
Jamaica Hospital CurrentSince Oct 1, 2022 Accepting new patients
TJH Medical Services, P.C. Family Medicine CurrentSince Mar 10, 2024 Accepting new patients
Sheridan Radiology Services of Central Florida Inc Diagnostic Radiology Current Accepting new patients
Blackwell Physicians, LLC Diagnostic Radiology CurrentSince Jul 2, 2025 Accepting new patients
Adventist Physician Services, Inc. CurrentSince Jul 2, 2025 Accepting new patients
Lifebridge Community Physicians, Inc Family Medicine CurrentSince Dec 12, 2022 Accepting new patients
Howard University Family Medicine CurrentSince May 15, 2025 Accepting new patients
Eastpointe Radiologists, P.C. Diagnostic Radiology CurrentSince Oct 10, 2022 Accepting new patients
Donalsonville Hospital Inc CurrentSince May 1, 2012 Accepting new patients
Lifebridge Community Physicians, Inc Current Accepting new patients
Professional Services of Holy Cross CurrentSince Jun 20, 2023 Accepting new patients
Mori Bean and Brooks Inc Diagnostic Radiology CurrentSince Oct 1, 2025 Accepting new patients
Jamaica Hospital CurrentSince Oct 1, 2022 Accepting new patients
Sheridan Radiology Services of West Florida, Inc. Diagnostic Radiology Past Accepting new patients
Diagnostic Systems Inc Diagnostic Radiology PastSince Feb 18, 2019 Accepting new patients
Lima Memorial Joint Operating Company Past Accepting new patients
Howard University Faculty Practice Plan PastSince Jun 15, 2025 Accepting new patients
University of Virginia Physicians Group PastSince Nov 1, 2017 Accepting new patients
Ici 24 7 PC Diagnostic Radiology Past Accepting new patients
Eastpointe Radiologists, PC Diagnostic Radiology Past Accepting new patients
Synergy Radiology, LLC PastSince Jul 21, 2024 Accepting new patients

Locations (25 of 38)

2041 Georgia Ave NW
#1R84
Washington, DC 20060
Phone (202) 865-3610

2041 Georgia Ave NW
Washington, DC 20060
Phone (202) 865-3785

502 W Highland Blvd
Inverness, FL 34452
Phone (352) 344-6481

2001 Kingsley Ave
Orange Park, FL 32073
Phone (904) 215-7015

1401 W Seminole Blvd
Sanford, FL 32771
Phone (317) 805-2316

13695 US Highway 1
Sebastian, FL 32958
Phone (772) 589-3185

2115 Little Rd
Trinity, FL 34655
Phone 7278418225410

285 Boulevard NE
Ste 215
Atlanta, GA 30312
Phone (404) 524-5082

303 Parkway Dr NE
Atlanta, GA 30312
Phone (404) 265-4000

102 Hospital Cir
Donalsonville, GA 39845
Phone (229) 524-8489

1900 Tebeau St
Waycross, GA 31501
Phone (912) 283-3030

2401 W Belvedere Ave
Baltimore, MD 21215

820 W Diamond Ave
Ste 500
Gaithersburg, MD 20878

19801 Observation Dr
Germantown, MD 20876
Phone (301) 557-5928

19731 Germantown Rd
Ste 102
Germantown, MD 20874
Phone (301) 444-8700

9901 Medical Center Dr
Rockville, MD 20850
Phone (301) 279-6000

9601 Blackwell Rd
Ste 150
Rockville, MD 20850
Phone (240) 864-1100

2101 Medical Park Dr
Ste 305
Silver Spring, MD 20902
Phone (301) 754-0833

1500 Forest Glen Rd
Silver Spring, MD 20910
Phone (301) 754-7230

410 Malcolm Dr
Ste A
Westminster, MD 21157
Phone (410) 876-1633

36750 26 Mile Rd
Chesterfield, MI 48047
Phone (586) 879-2000

51307 Gratiot Ave
Chesterfield, MI 48051
Phone (586) 741-3772

43900 Garfield Rd
Ste 222
Clinton Twp, MI 48038
Phone (586) 263-1234

22101 Moross Rd
Detroit, MI 48236
Phone (313) 343-3248

17141 Kercheval Ave
Grosse Pointe, MI 48230
Phone (313) 642-4980

Networks

  • Healthfirst Medicare Network H5989
  • Optimum HealthCare HMO Network
  • Healthfirst Medicare Network H3359
  • Healthfirst Medicare Network H1722
  • Healthfirst Medicare Network H9678
  • Freedom Health HMO Network

Interoperability endpoints

  • Direct secure messaging: jalexander1159440@direct.hfhs.org
  • Direct secure messaging: jalexander427716@direct.llu.edu

Organizations & group practices 29

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.

View all 29

Hospital & facility affiliations 7

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": "1212364800000",
    "enumeration_type": "NPI-1",
    "last_updated_epoch": "1753660800000",
    "number": "1649439043",
    "addresses": [
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "MAILING",
            "address_type": "DOM",
            "address_1": "UVA HEALTH SERVICES FOUNDATION",
            "address_2": "P.O. BOX 9007",
            "city": "CHARLOTTESVILLE",
            "state": "VA",
            "postal_code": "229080001",
            "telephone_number": "434-295-1000",
            "fax_number": "434-972-4266"
        },
        {
            "country_code": "US",
            "country_name": "United States",
            "address_purpose": "LOCATION",
            "address_type": "DOM",
            "address_1": "3753 S COTTAGE GROVE AVE STE 101",
            "city": "CHICAGO",
            "state": "IL",
            "postal_code": "606531662",
            "telephone_number": "708-216-9000"
        }
    ],
    "practiceLocations": [
        {
            "address_1": "2041 Georgia Ave NW # 1R84",
            "address_purpose": "LOCATION",
            "city": "Washington",
            "state": "DC",
            "postal_code": "200601662",
            "country_code": "US",
            "telephone_number": "202-865-3610",
            "country_name": "United States",
            "address_type": "DOM"
        }
    ],
    "basic": {
        "last_name": "ALEXANDER",
        "first_name": "JOHNNY",
        "middle_name": "O",
        "credential": "MD",
        "sole_proprietor": "NO",
        "sex": "M",
        "enumeration_date": "2008-06-02",
        "last_updated": "2025-07-28",
        "certification_date": "2025-07-28",
        "status": "A"
    },
    "taxonomies": [
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "DC",
            "license": "MD210012291",
            "primary": false
        },
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "VA",
            "license": "0101243293",
            "primary": false
        },
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "IL",
            "license": "36128037",
            "primary": false
        },
        {
            "code": "2085R0202X",
            "taxonomy_group": "",
            "desc": "Radiology, Diagnostic Radiology",
            "state": "NY",
            "license": "316970",
            "primary": true
        }
    ],
    "identifiers": [
        {
            "code": "05",
            "desc": "MEDICAID",
            "issuer": null,
            "identifier": "1649439043",
            "state": "VA"
        }
    ],
    "endpoints": [],
    "other_names": []
}

Other providers in Chicago, IL

Sources for this page

Verify at the official NPI Registry.