NPIMap

Stephen Shepherd Johnston, MD

Individual provider Active NPI Diagnostic Radiology Physician · Tucson, AZ

NPI 1730525841 · NPPES record last updated Feb 6, 2026

Key facts

NPI
1730525841
Entity type
Individual (NPI type 1)
Primary specialty
Diagnostic Radiology Physician 2085R0202X
License
R73777 (AZ)
Practice address
2492 E River Rd
Tucson, AZ 85718-9552
Phone
(520) 722-8994
NPI assigned
May 15, 2013
Sex
Male
Sole proprietor
No

Organizations & group practices 172

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 172

Hospital & facility affiliations 5

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

Medicare Care Compare profile

Specialty
Diagnostic Radiology
Education
University of Arizona College of Medicine, 2013
Medicare assignment
Accepts the Medicare-approved amount as payment in full
Group practices
Unc Physicians Network LLC (985 clinicians)
Allen Parish Hospital District No 3 (47 clinicians)
Wetumpka Urgent Care LLC (50 clinicians)
Radiology Associates LLC (83 clinicians)
Allegiance Hospital of Many, LLC (40 clinicians)
CLHG-Oakdale LLC (37 clinicians)
Desoto Hospital Association (35 clinicians)
Franklin Parish Hospital Service Dist 1 (80 clinicians)
Richland Parish Hospital Service District No 1-B (41 clinicians)
CLHG-Acadian LLC (31 clinicians)
Caldwell Memorial Hospital, Inc. (26 clinicians)
ER Physician Group at Jackson Hospital (153 clinicians)
Hospital Service District No 1 Parish of Avoyelles State of la (27 clinicians)
Concord Radiology PLLC (217 clinicians)
Peterson Medical Associates (192 clinicians)
Prime Healthcare Services-Gadsden Physician Management LLC (79 clinicians)
Concordia Parish Hospital Service District Number One (28 clinicians)
CLHG-Ville Platte LLC (41 clinicians)
Savoy Medical Management Group, Inc (37 clinicians)
Ivy Creek of Elmore LLC (99 clinicians)

Practice addresses (Care Compare)

Gilbert, AZ 85298
Phone (252) 962-8186

108 6TH Ave
Kinder, LA 70648-3187
Phone (337) 738-2527

11 Cambridge CT
Wetumpka, AL 36093-1261
Phone (334) 567-8633

1138 E Regent Dr
Gilbert, AZ 85298-0612
Phone (225) 757-0552

12060 Texas Hwy
Many, LA 71449-5605
Phone (318) 256-9002

130 Hospital Dr
Oakdale, LA 71463-3035
Phone (318) 315-7093

207 Jefferson St
Mansfield, LA 71052-2603
Phone (318) 871-3109

2106 Loop Rd
Winnsboro, LA 71295-3344
Phone (318) 412-5265

240 Highland Dr
Many, LA 71449-3718
Phone (318) 256-7380

254 Hwy 3048
Rayville, LA 71269-3624
Phone (318) 728-4181

3501 Hwy 190
Eunice, LA 70535-5129
Phone (337) 580-7500

411 Main St
Columbia, LA 71418-6704
Phone (318) 649-6111

4250 Hospital Dr
Marianna, FL 32446-1917
Phone (850) 526-2200

427 Evergreen St
Bunkie, LA 71322-3901
Phone (318) 346-6681

4967 S Ellesmere St
Gilbert, AZ 85298-0617
Phone (888) 264-0330

575 Hill Country Dr
Suite 101
Kerrville, TX 78028-6024
Phone (830) 258-7090

600 S 3Rd St
Gadsden, AL 35901-5304
Phone (256) 467-4731

6569 Hwy 84
Ferriday, LA 71334-4573
Phone 3187576551605

800 E Main St
Ville Platte, LA 70586-4618
Phone (337) 363-5684

801 Poinciana Ave
Mamou, LA 70554-2243
Phone (337) 468-5261

PO Box
Suite 130
Wetumpka, AL 36092

Hospital & facility affiliations

  • Unc Health Nash Hospital · Rocky Mount, NC · CCN 340147
  • Our Lady of the Lake Regional Medical Center Hospital · Baton Rouge, LA · CCN 190064
  • Fmol Health St Francis Hospital · Monroe, LA · CCN 190125
  • Richardson Medical Center Hospital · Rayville, LA · CCN 190151
  • Ascension Saint Thomas Hospital Hospital · Nashville, TN · CCN 440082

Medicare participation

Medicare fee-for-service enrollment
Enrolled (11 enrollments) in AZ, VA, LA, TX, KY, OH, TN, NM, AL, FL, ND
Eligible to order & refer
Part B services: Yes · DME: Yes · Home health: Yes · Power mobility devices: Yes · Hospice: Yes

Medicare enrollment records

Enrollment IDStateProvider typePAC IDDetails
I20180427000455 AZ Practitioner - Diagnostic Radiology 0042574048 Reassigns benefits to 26 organizations
I20201207001639 VA Practitioner - Diagnostic Radiology 0042574048 Reassigns benefits to 3 organizations
I20220307000090 LA Practitioner - Diagnostic Radiology 0042574048 Reassigns benefits to 26 organizations
I20220613000630 TX Practitioner - Diagnostic Radiology 0042574048 Reassigns benefits to 2 organizations
I20230106001532 KY Practitioner - Diagnostic Radiology 0042574048 Reassigns benefits to 1 organization
I20230807001707 OH Practitioner - Diagnostic Radiology 0042574048 Reassigns benefits to 1 organization
I20240105002015 TN Practitioner - Diagnostic Radiology 0042574048 Reassigns benefits to 2 organizations
I20240105004358 NM Practitioner - Diagnostic Radiology 0042574048 Reassigns benefits to 2 organizations
I20240816000185 AL Practitioner - Diagnostic Radiology 0042574048 Reassigns benefits to 8 organizations
I20250423001774 FL Practitioner - Diagnostic Radiology 0042574048 Reassigns benefits to 1 organization
I20260317003431 ND Practitioner - Diagnostic Radiology 0042574048 Reassigns benefits to 1 organization

National Provider Directory

Medicare enrollment (NPD)
Yes
Credentials
Doctor of Medicine

State licenses

LicenseStateTypeSpecialty
R73777AZMDDiagnostic Radiology Physician

Practice roles (60 of 109)

OrganizationSpecialtyStatusNew patients
Ivy Creek Family Care of Lake Martin Current
since Dec 21, 2025		 Accepting new patients
Rehoboth McKinley Christian Health Care Services, Inc. Current Accepting new patients
Savoy Medical Management Group, Inc. Internal Medicine Current
since Jan 1, 2025		 Accepting new patients
Mercy Health Physicians Youngstown Specialty Care LLC Current
since Aug 11, 2023		 Accepting new patients
Imaging Associates of Indiana, PC Diagnostic Radiology Current
since Jan 1, 2023		 Accepting new patients
Middle Tennessee Imaging LLC Diagnostic Radiology Current
since Feb 7, 2024		 Accepting new patients
Concordia Parish Hospital Service District Number One Current
since Oct 1, 2025		 Accepting new patients
Acadia-St. Landry Hospital Service District Current
since Feb 12, 2022		 Accepting new patients
Golden State Imaging Associates Inc Diagnostic Radiology Current
since Mar 7, 2023		 Accepting new patients
University of Virginia Physicians Group Current
since Nov 9, 2020		 Accepting new patients
CLHG-Ville Platte LLC Diagnostic Radiology Current
since Feb 12, 2022		 Accepting new patients
Allen Parish Hospital District No 3 Current
since Nov 1, 2024		 Accepting new patients
CLHG-Acadian, LLC Current
since Mar 2, 2022		 Accepting new patients
Jackson Parish Hospital Current
since Feb 12, 2022		 Accepting new patients
Hawkeye Medical, LLC Current
since Mar 1, 2024		 Accepting new patients
Radiology Associates of Canton, Inc. Diagnostic Radiology Current
since Jun 30, 2023		 Accepting new patients
Tallahassee Diag Imaging Ctr LTD Diagnostic Radiology Current
since Nov 1, 2024		 Accepting new patients
Allegiance Hospital of Many, LLC Current
since Feb 12, 2022		 Accepting new patients
Cambria Somerset Radiology & Nuclear Medicine Group, Inc. Diagnostic Radiology Current
since Jan 16, 2024		 Accepting new patients
Concordia Parish Hospital Service District Number One Current
since Feb 12, 2022		 Accepting new patients
Sonoran Radiology LTD Diagnostic Radiology Current
since Aug 1, 2024		 Accepting new patients
Concordia Parish Hospital Service District Number One Current Accepting new patients
Caldwell Memorial Hospital, Inc. Current
since Apr 8, 2023		 Accepting new patients
SHPS, PLLC Diagnostic Radiology Current
since Sep 1, 2022		 Accepting new patients
Radiology Alliance PC Diagnostic Radiology Current
since Nov 8, 2023		 Accepting new patients
Foundation Radiology Group PC Diagnostic Radiology Current
since Mar 1, 2020		 Accepting new patients
Concordia Parish Hospital Service District Number One Current
since Feb 12, 2022		 Accepting new patients
Rehoboth McKinley Christian Health Care Services, Inc Diagnostic Radiology Current
since Nov 26, 2023		 Accepting new patients
Richland Parish Hospital Service District No. 1-B Current
since Mar 1, 2022		 Accepting new patients
Allen Parish Hospital District No 3 Current
since Nov 1, 2024		 Accepting new patients
Hospital Service District No 1-a of the Parish of Richland State of la Current
since Jul 1, 2025		 Accepting new patients
Radiology Associates of Tallahassee PA Diagnostic Radiology Current
since Nov 1, 2024		 Accepting new patients
Ward 3 4 & 10 Hospital Service District of Parish of Union Current
since Feb 12, 2022		 Accepting new patients
Radiology Associates of Appleton, S.C. Diagnostic Radiology Current
since Jul 1, 2024		 Accepting new patients
Cigna Health Care of Arizona Inc. Current Accepting new patients
University of Virginia Imaging, LLC Diagnostic Radiology Current Accepting new patients
Rehoboth McKinley Christian Health Care Services, Inc Internal Medicine Current
since Nov 26, 2023		 Accepting new patients
St. Christopher'S Imaging, LLC Current
since May 1, 2025		 Accepting new patients
Hospital Service District No 1 Parish of Avoyelles State of Louisiana Current Accepting new patients
Desoto Hospital Association Current Accepting new patients
West Carroll Health Systems LLC Current
since Jan 1, 2026		 Accepting new patients
Peterson Medical Associates Internal Medicine Current
since Jan 1, 2024		 Accepting new patients
Cigna Healthcare of Arizona, Inc. Current Accepting new patients
Prime Healthcare Services-Gadsden Physician Management LLC Internal Medicine Current
since Jun 5, 2024		 Accepting new patients
CLHG-Avoyelles LLC Current Accepting new patients
CLHG-Ville Platte LLC Current
since Feb 12, 2022		 Accepting new patients
CLHG-Oakdale LLC Current
since Feb 20, 2023		 Accepting new patients
Mercy Health Physicians Kentucky Specialty Care LLC Current
since Sep 28, 2022		 Accepting new patients
Coaxion PLLC Diagnostic Radiology Current
since Jan 1, 2026		 Accepting new patients
Wetumpka Urgent Care LLC Current
since Dec 21, 2025		 Accepting new patients
Hospital Service District No 1 Parish of Avoyelles State of Louisiana Current
since Apr 1, 2025		 Accepting new patients
Hospital Service District No 1-a of the Parish of Richland State of la Internal Medicine Current
since Nov 1, 2024		 Accepting new patients
Specialists in Medical Imaging, SC Diagnostic Radiology Current
since Jun 25, 2024		 Accepting new patients
Enterprise Urgent Care Current
since Dec 21, 2025		 Accepting new patients
Savoy Medical Management Group, Inc. Current
since Jan 1, 2025		 Accepting new patients
Caldwell Memorial Hospital, Inc Current
since Apr 8, 2023		 Accepting new patients
Franklin Parish Hospital Service Dist 1 Current
since Feb 12, 2022		 Accepting new patients
Desoto Hospital Association Current
since Jan 1, 2024		 Accepting new patients
Cigna Health Care of Arizona Inc. Current Accepting new patients
Cigna Healthcare of Arizona, Inc. Current
since Apr 11, 2019		 Accepting new patients

Locations (25 of 96)

1210 7th St S
Clanton, AL 35045
Phone (205) 280-0620

4412 Hogan Rd
Deatsville, AL 36022
Phone (334) 514-4851

6582 Boll Weevil Cir
Enterprise, AL 36330
Phone (334) 347-2027

303 Bay St
Ste 401
Gadsden, AL 35901
Phone (256) 413-6591

600 S 3rd St
Gadsden, AL 35901
Phone (256) 543-5200

1642A Pelham Rd S
Jacksonville, AL 36265
Phone (256) 543-1222

4081 Highway 14
Millbrook, AL 36054
Phone (334) 285-3222

277 Huntress St
Ste 100
Wetumpka, AL 36092
Phone (334) 567-3309

41 Cambridge Ct
Wetumpka, AL 36093
Phone (334) 567-3309

500 Hospital Dr
Wetumpka, AL 36092
Phone (334) 283-2542

1717 W Chandler Blvd
Chandler, AZ 85224
Phone (480) 281-7565

4545 N Hunt Hwy
Florence, AZ 85132
Phone (480) 258-6100

5891 W Eugie Ave
Glendale, AZ 85304
Phone (602) 588-6600

6811 E Superstition Springs Blvd
Mesa, AZ 85209
Phone (480) 641-4000

1201 S Alma School Rd
Ste 14500
Mesa, AZ 85210
Phone (602) 698-7715

1840 S Stapley Dr
Ste 101
Mesa, AZ 85204
Phone (480) 464-8500

6750 E Baywood Ave
Mesa, AZ 85206
Phone (480) 854-5000

1301 S Crismon Rd
Mesa, AZ 85209
Phone (480) 358-6300

21731 N 77th Ave
Ste 1300
Peoria, AZ 85382
Phone (623) 561-3300

1300 N 12th St
Ste 404
Phoenix, AZ 85006
Phone (602) 839-7000

7600 N 15th St
Ste 185
Phoenix, AZ 85020
Phone (602) 678-3131

3805 E Bell Rd
Ste 2100
Phoenix, AZ 85032
Phone (602) 404-5200

2302 N 75th Ave
Phoenix, AZ 85035
Phone (623) 849-7500

1600 S 20th Ave
Safford, AZ 85546
Phone (928) 348-4000

8888 E Raintree Dr
Fl 3
Scottsdale, AZ 85260

Interoperability endpoints

  • FHIR API: https://api.platform.athenahealth.com/10998/brand/1/csg/1/fhir/r4
  • FHIR API: https://fhir-myrecord.cerner.com/r4/21ed112e-ec5e-43b1-8ddc-cd3753841e6e/
  • FHIR API: https://fhir-usa.unify.chbase.com/org/caldmem-57e7c173

Specialties & licenses

Specialty (taxonomy)CodeLicenseStatePrimary
Diagnostic Radiology Physician 2085R0202X 330999 LA
Diagnostic Radiology Physician 2085R0202X ME170763 FL
Diagnostic Radiology Physician 2085R0202X R73777 AZ Yes

Addresses

Primary practice location

2492 E River Rd
Tucson, AZ 85718-9552

Mailing address

2492 E River Rd
Tucson, AZ 85718-9552
Phone (520) 722-8994

Other practice location 1

4250 Hospital Dr
Marianna, FL 32446-1917
Phone (850) 526-2200

Other providers in Tucson, AZ

All providers in Tucson, AZ · Diagnostic Radiology Physician in Arizona

Sources for this page

Verify at the official NPI Registry.