STEPHEN SHEPHERD JOHNSTON MD
NPI 1730525841
Radiology - Diagnostic Radiology in Tucson, AZ

Active since May 15, 2013PECOS EnrolledAccepts Medicare Assignment
2492 E RIVER RD, TUCSON, AZ 85718(520) 722-8994 Get Directions Write a Review

NPPES record last updated: February 6, 2026. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Feb 6, 2026, Dec 2, 2024, Nov 7, 2020 (3 updates tracked since 2020).

About Stephen Shepherd Johnston Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

STEPHEN SHEPHERD JOHNSTON MD (NPI 1730525841) is an individual diagnostic radiology provider in Tucson, Arizona, licensed in Arizona (R73777) and active in the NPI registry since May 2013. He is enrolled in Medicare PECOS, is affiliated with Franklin Medical Center, and maintains a secondary practice location in Marianna.

NPPES Registry Identity

NPI1730525841
Entity TypeIndividualMale
Primary Taxonomy2085R0202X
Provider Legal NameSTEPHEN SHEPHERD JOHNSTONCredential: MD
Location Address2492 E RIVER RDTucson, AZ 85718-9552
Mailing Address2492 E River RdTucson, AZ 85718-9552 · (520) 722-8994
Sole ProprietorNo
Medical School CMSUniversity Of Arizona College Of MedicineGraduated 2013
Enumeration DateMay 15, 2013
Last NPPES UpdateFebruary 6, 20263 updates tracked since enumeration
NPPES CertifiedFebruary 6, 2026
NPI 1730525841 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians
Taxonomy Code2085R0202X
Licenses Licensed in AZ · R73777 Licensed in LA · 330999 Licensed in FL · ME170763
Definition
A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.
2492 E RIVER RD, Tucson, AZ 85718

Secondary Practice Location 1

Location 14250 Hospital DrMarianna, FL 32446-1917 · Phone (850) 526-2200 · Fax (850) 718-2844

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Stephen Shepherd Johnston Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID42574048
PECOS Enrollment IDI20180427000455, I20220307000090, I20220613000630, I20240816000185, I20250423001774
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 44

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

X-ray of chest, 1 view 71045
A chest X-ray, 1 view, is a quick, painless test that produces images of the structures within your chest, such as your heart, lungs, and blood vessels. It helps in diagnosing conditions like pneumonia, heart problems, or lung cancer. You'll stand in front of a machine that emits X-rays, which pass through your body to create the image.
726 services682 patients
Ct scan head or brain without contrast 70450
A CT scan of the head or brain without contrast is a non-invasive imaging procedure. It uses X-rays to create detailed pictures of your brain, skull, and other structures inside your head. It helps to detect conditions like strokes, tumors, or injuries. No dye (contrast) is used in this test.
356 services348 patients
Ct scan of abdomen and pelvis with contrast 74177
A CT scan of the abdomen and pelvis with contrast is an imaging procedure. A special dye, called contrast, is used to make certain areas more visible. This can help identify issues such as infections, tumors, or other abnormalities. The procedure is painless and usually takes about 30 minutes.
177 services175 patients
Ultrasound of both sides of head and neck blood flow 93880
An ultrasound of the head and neck blood flow is a safe, non-invasive procedure that uses sound waves to create images of blood vessels. It helps detect abnormalities like blockages or clots, ensuring optimal blood flow.
153 services153 patients
Ct scan of abdomen and pelvis without contrast 74176
A CT scan of the abdomen and pelvis is a non-invasive medical test. It uses special X-ray equipment to create detailed images of your abdominal and pelvic areas. This helps doctors examine organs, tissues, and vessels. No contrast dye is used in this procedure.
141 services138 patients
Ct scan of upper spine without contrast 72125
A CT scan of the upper spine without contrast is a non-invasive imaging test that uses X-rays to capture detailed images of your neck and upper back. It helps in identifying issues like fractures, tumors, or infections. No dye (contrast) is used in this scan.
136 services136 patients

Hospital Affiliations CMS Care Compare 5

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Franklin Medical Center

Acute Care Hospitals · Winnsboro, LA
OwnershipGovernment - Hospital District or Authority
CMS Certification Number190140
Location2106 Loop RoadWinnsboro, LA 71295 · Franklin County
Emergency services

Richardson Medical Center

Acute Care Hospitals · Rayville, LA
OwnershipGovernment - Hospital District or Authority
CMS Certification Number190151
Location254 Highway 3048Rayville, LA 71269 · Richland County
Emergency services

Acadian Medical Center

Acute Care Hospitals · Eunice, LA
OwnershipProprietary
CMS Certification Number190318
Location3501 Highway 190 EastEunice, LA 70535 · St. Landry County
Emergency services Birthing friendly

Unc Health Nash

Acute Care Hospitals · Rocky Mount, NC
4/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number340147
Location2460 Curtis Ellis DriveRocky Mount, NC 27804 · Nash County
Emergency services Birthing friendly

Ascension Saint Thomas Hospital

Acute Care Hospitals · Nashville, TN
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number440082
Location4220 Harding Rd, PO Box 380Nashville, TN 37205 · Davidson County
Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85718 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$85.89 typical visit price
range $55.44 – $168.60
Typical copayment $21.47 (range $13.86 – $42.15)
Most-billed visit code 99203
Established Patient
$69.24 typical visit price
range $17.72 – $137.41
Typical copayment $17.31 (range $4.43 – $34.35)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 18

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Radiology (Diagnostic Radiology)
2492 E RIVER RD
TUCSON, AZ 85718
Radiology (Diagnostic Radiology)
2492 E RIVER RD
TUCSON, AZ 85718
Radiology (Diagnostic Radiology)
2492 E RIVER RD
TUCSON, AZ 85718
Radiology (Diagnostic Radiology)
2492 E RIVER RD
TUCSON, AZ 85718
Radiology (Diagnostic Radiology)
2492 E RIVER RD
TUCSON, AZ 85718
Radiology (Diagnostic Radiology)
2492 E RIVER RD
TUCSON, AZ 85718
Radiology Practitioner Assistant
2492 E RIVER RD
TUCSON, AZ 85718
Radiology (Diagnostic Radiology)
2492 E RIVER RD
TUCSON, AZ 85718

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Stephen Johnston's NPI number?

The NPI number for Stephen Johnston is 1730525841. It was assigned to this individual provider in the NPPES registry on May 15, 2013.

Where is Stephen Johnston located?

Stephen Johnston practices at 2492 E River Rd, Tucson, AZ 85718. The listed phone number is (520) 722-8994.

What is Stephen Johnston's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.

Is Stephen Johnston enrolled in Medicare?

Yes. Stephen Johnston is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does Stephen Johnston accept?

Health plans from Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections, Ambetter from Magnolia Health, Ambetter from Superior HealthPlan and Antidote Health Plan of Arizona, Inc. and 9 other insurers list Stephen Johnston as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is Stephen Johnston affiliated with any hospitals?

According to CMS data, Stephen Johnston is affiliated with Franklin Medical Center, Richardson Medical Center, Acadian Medical Center, Unc Health Nash and Ascension Saint Thomas Hospital.

When was this NPI record last updated?

The NPPES record for Stephen Johnston was last updated on February 6, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.