ROBERT J JOHNSTON M.D.
NPI 1225049000
Radiology - Diagnostic Radiology in Denver, CO

Q: What is Robert Johnston's NPI number?

The NPI number for Robert Johnston is 1225049000. It was assigned to this individual provider in the NPPES registry on August 10, 2006.

Q: Where is Robert Johnston located?

Robert Johnston practices at 938 Bannock St Ste 300, Denver, CO 80204. The listed phone number is (303) 914-8800.

Q: What is Robert Johnston's specialty?

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

Q: Is Robert Johnston enrolled in Medicare?

Yes. Robert Johnston is registered in the Medicare PECOS enrollment system.

Q: Which organizations bill Medicare for Robert Johnston's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Robert Johnston reassigns Medicare benefits to 8 organizations: Orthopedic Centers Of Colorado, LLC (Denver, CO), Diversified Radiology Of Colorado, Inc (Lakewood, CO), Spectrum Medical Imaging, LLC (Brighton, CO), Vail Clinic Inc (Dillon, CO), Radiology Ltd., LLC (Tucson, AZ) and 3 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Robert Johnston's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

Q: What insurance does Robert Johnston accept?

Health plans from Ambetter Health, Ambetter from Absolute Total Care, Ambetter of North Carolina, Blue Cross Blue Shield of Arizona and Blue Cross and Blue Shield of Montana and 5 other insurers list Robert 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.

Q: Is Robert Johnston affiliated with any hospitals?

According to CMS data, Robert Johnston is affiliated with St James Healthcare and Hampton Regional Medical Center.

Q: When was this NPI record last updated?

The NPPES record for Robert Johnston was last updated on March 5, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years 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.

Active since August 10, 2006PECOS Enrolled

83.81/100

CMS Quality Rating

938 BANNOCK ST, STE 300, DENVER, CO 80204(303) 914-8800(303) 716-3777 Get Directions Write a Review

NPPES record last updated: March 5, 2008. Verified against the NPPES registry weekly; last sync: October 25, 2026.

On this page

About Robert J Johnston M.d. NPPES

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

ROBERT J JOHNSTON M.D. (NPI 1225049000) is an individual diagnostic radiology provider in Denver, Colorado, licensed in Colorado (29731) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS, is affiliated with St James Healthcare, and is a graduate of University Of Colorado School Of Medicine, Denver (1984).

NPPES Registry Identity

NPI1225049000

Entity TypeIndividualMale

Primary Taxonomy2085R0202X

Provider Legal NameROBERT J JOHNSTONCredential: M.D.

Location Address938 BANNOCK ST, STE 300Denver, CO 80204-4028

Mailing Address938 Bannock St, Ste 300Denver, CO 80204-4028 · (303) 914-8800 · Fax (303) 716-3777

Phone(303) 914-8800

Fax(303) 716-3777

Sole ProprietorYes

Medical School CMSUniversity Of Colorado School Of Medicine, DenverGraduated 1984

Enumeration DateAugust 10, 2006

Last NPPES UpdateMarch 5, 2008

✔ NPI 1225049000 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0202X

License✔ Licensed in CO · 29731

Definition

A radiologist who utilizes x-ray, radionuclides, ultrasound and electromagnetic radiation to diagnose and treat disease.

938 BANNOCK ST, Denver, CO 80204

Open in Google Maps ↗

Other Identifiers 9

Medicaid01297316CO

Medicare PINC809549CO

Medicare PINC803975CO

Medicare PINC803997CO

Medicare PINC801370CO

Medicare UPINF24579CO

Medicare PINP00276155CO

Medicare PINC441758CO

Medicare PINC801369CO

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Absolute Total Care, Ambetter Health, Ambetter of North Carolina and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Robert J Johnston M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

PECOS PAC ID5193629566

PECOS Enrollment IDI20031126000385

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.

Medicare Billing Reassignments

Medicare enrollment records show Robert Johnston reassigns Medicare billing to 8 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Orthopedic Centers Of Colorado, LLC

5.1 mi

Orthopaedic Surgery

8101 E LOWRY BLVD STE 120
Denver, CO 80230

Reassigned Medicare billing, Colorado enrollment
395 clinicians in this Medicare group

NPI 1801339502 (303) 806-1998

Diversified Radiology Of Colorado, Inc

9.0 mi

Diagnostic Radiology

1746 COLE BLVD, SUITE 150
Lakewood, CO 80401

Reassigned Medicare billing, Colorado enrollment
70 clinicians in this Medicare group

NPI 1205923596 (303) 914-8800

Spectrum Medical Imaging, LLC

20 mi

Radiology

1610 PRAIRIE CENTER PKWY, 2100
Brighton, CO 80601

Reassigned Medicare billing, Colorado enrollment
82 clinicians in this Medicare group

NPI 1164881652 (720) 523-5720

Vail Clinic Inc

57 mi

Clinic/Center

365 DILLON RIDGE RD, STE 100
Dillon, CO 80435

Reassigned Medicare billing, Colorado enrollment
194 clinicians in this Medicare group

NPI 1043884208 (970) 479-7272

Radiology Ltd., LLC

613 mi

Diagnostic Radiology

677 N WILMOT RD
Tucson, AZ 85711

Reassigned Medicare billing, Colorado enrollment
58 clinicians in this Medicare group

NPI 1841261989 (520) 795-2889

M & B Imaging, PC

1,226 mi

Radiology

1640 JESSE JEWELL PKWY SE STE 2
Gainesville, GA 30501

Reassigned Medicare billing, Colorado enrollment
53 clinicians in this Medicare group

NPI 1932624723 (404) 296-5887

Charlotte Radiology P A

1,359 mi

Specialist

700 E MOREHEAD ST STE 300
Charlotte, NC 28202

Reassigned Medicare billing, Colorado enrollment
52 clinicians in this Medicare group

NPI 1649220443 (704) 362-5391

Musc Community Physicians

1,400 mi

Internal Medicine

506 NORTH ST
Bamberg, SC 29003

Reassigned Medicare billing, Colorado enrollment
57 clinicians in this Medicare group

NPI 1841878006 (803) 245-6290

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 25

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.

343 services289 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.

120 services116 patients

X-ray of chest, 2 views 71046

A chest X-ray, 2 views, is a quick, painless test that creates pictures of the structures inside your chest, such as your heart, lungs, and blood vessels. Two different angles are used to get a comprehensive view. This helps in diagnosing conditions like pneumonia, heart problems, or lung cancer.

107 services106 patients

Ct scan of blood vessels of chest with contrast 71275

A CT scan of the chest with contrast is a non-invasive imaging test. It uses X-rays and a special dye to get detailed images of your blood vessels in the chest. This helps in diagnosing conditions related to heart and lungs.

88 services86 patients

X-ray of abdomen, 1 view 74018

An X-ray of the abdomen, 1 view, is a quick and painless imaging test. It uses a small amount of radiation to produce images of the structures in your abdomen, such as the stomach, liver, and intestines. This can help identify issues like blockages, infections, or injuries.

67 services55 patients

Ct scan of chest without contrast 71250

A CT scan of the chest without contrast is a non-invasive imaging procedure. It uses special X-ray equipment to produce detailed images of your chest area, including your lungs and heart. It can help diagnose conditions such as lung diseases or heart disorders. It doesn't involve any dyes or contrast agents.

64 services61 patients

Ct scan of chest with contrast 71260

A CT scan of the chest with contrast is an imaging procedure. A special dye (contrast) is used to highlight specific areas in your body, providing clearer pictures of your chest. This helps in diagnosing conditions related to your lungs, heart, and other chest structures.

47 services46 patients

Ct scan of blood vessels of abdomen and pelvis with contrast 74174

A CT scan of the abdomen and pelvis with contrast is a medical imaging procedure. A special dye, called contrast, is used to make blood vessels more visible. The scan produces detailed images of your abdomen and pelvis, helping doctors to diagnose conditions or plan treatments.

34 services33 patients

X-ray of hip, 2-3 views 73502

An X-ray of the hip with 2-3 views is a non-invasive imaging test. It uses a small amount of radiation to produce pictures of the hip joint. These images help in diagnosing conditions like fractures, arthritis, or other abnormalities. The process is quick and painless.

29 services28 patients

X-ray of foot, minimum of 3 views 73630

An X-ray of the foot, minimum of 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the bones and tissues in your foot. This helps to identify fractures, infections, or other abnormalities. Multiple views ensure a comprehensive examination.

27 services24 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.

27 services27 patients

Ultrasound study of one arm or leg veins with compression and maneuvers 93971

This is a non-invasive procedure using sound waves to visualize veins in an arm or leg. It involves applying gentle pressure and performing certain movements. It helps identify any abnormal blood flow or clots, ensuring vascular health.

25 services24 patients

Limited ultrasound scan of abdomen 76705

A limited ultrasound scan of the abdomen is a non-invasive imaging test. It uses sound waves to produce images of the abdominal organs such as the liver, gallbladder, spleen, pancreas, and kidneys. This helps to identify any abnormalities or issues.

23 services23 patients

3d radiographic procedure 76376

A 3D radiographic procedure is a non-invasive imaging test that helps doctors visualize the internal structures of your body in three dimensions. This advanced technology provides detailed images, aiding in accurate diagnosis and treatment planning. It involves exposure to minimal radiation.

19 services19 patients

Ct scan of heart structure with contrast 75572

A CT scan of the heart with contrast is a non-invasive test. A dye is injected into your veins, which helps to highlight heart structures in the images. The CT scanner uses X-rays to create detailed pictures of your heart, aiding in diagnosis.

18 services17 patients

Mri scan of abdomen before and after contrast 74183

An MRI scan of the abdomen before and after contrast provides detailed images of your abdominal organs. Initially, images are taken without a contrast agent. Then, a safe dye is administered, usually via an IV, to highlight certain areas, giving a clearer picture to help diagnose various conditions.

17 services17 patients

X-ray of shoulder, minimum of 2 views 73030

An X-ray of the shoulder, with a minimum of 2 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of your shoulder bones. This helps in diagnosing conditions like fractures, arthritis, or other abnormalities. The procedure is quick and painless.

16 services16 patients

X-ray of knee, 1-2 views 73560

An X-ray of the knee with 1-2 views is a quick, painless test that produces images of the knee bones. It helps identify fractures, infections, or changes in the knee joint. During the procedure, you'll be asked to stay still while the X-ray machine captures the images.

16 services16 patients

Ultrasound study of arm or leg veins with compression and maneuvers 93970

An ultrasound study of arm or leg veins with compression and maneuvers is a non-invasive procedure that uses sound waves to create images of your veins. This helps identify blood clots or other vein problems. During the procedure, pressure is applied to the veins and certain movements are performed to assess blood flow.

15 services15 patients

Complete ultrasound of abdomen and pelvis artery and vein blood flow 93975

This procedure uses sound waves to create images of your abdomen and pelvis, specifically focusing on the arteries and veins. It helps in assessing the blood flow and detecting any abnormalities, ensuring your overall well-being.

15 services15 patients

X-ray of ankle, minimum of 3 views 73610

An ankle X-ray is a quick, painless imaging test. It involves capturing at least three different images or 'views' of your ankle using small amounts of radiation. These images help identify any abnormalities or injuries, such as fractures or arthritis.

14 services12 patients

Ultrasound scan of head and neck soft tissue 76536

An ultrasound scan of the head and neck soft tissue is a non-invasive procedure that uses sound waves to create images of the soft tissues in these areas. It helps identify any abnormalities or issues, such as tumors, cysts, or infections. It's painless and doesn't involve radiation.

13 services13 patients

X-ray of pelvis, 1-2 views 72170

An X-ray of the pelvis, 1-2 views, is a quick and painless imaging test. It uses a small amount of radiation to produce images of the lower part of your torso. These images help to detect any abnormalities or injuries in your hip bones and surrounding structures.

12 services11 patients

Low dose ct scan of chest for lung cancer screening 71271

A low-dose CT scan of the chest is a quick, painless procedure that uses a small amount of radiation to create detailed images of your lungs. It's a key tool for early detection of lung cancer, especially for those at high risk.

11 services11 patients

X-ray of wrist, minimum of 3 views 73110

An X-ray of the wrist, minimum of 3 views, is a diagnostic procedure that uses radiation to create images of your wrist from different angles. This helps detect fractures, infections, or other abnormalities for accurate diagnosis and treatment planning.

11 services11 patients

Hospital Affiliations CMS Care Compare 2

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

St James Healthcare

Acute Care Hospitals · Butte, MT

1/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number270017

Location400 S Clark StButte, MT 59701 · Silver Bow County

Emergency services Birthing friendly

Hampton Regional Medical Center

Acute Care Hospitals · Varnville, SC

OwnershipVoluntary non-profit - Private

CMS Certification Number420072

Location595 West Carolina AvenueVarnville, SC 29944 · Hampton County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 80204 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

$89.43 typical visit price

range $58.06 – $174.82

Typical copayment $22.35 (range $14.51 – $43.70)

Most-billed visit code 99203

Established Patient

$72.20 typical visit price

range $18.88 – $142.79

Typical copayment $18.05 (range $4.72 – $35.69)

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.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

83.81/100

MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program

Scored as part of a group practice

Quality

86.28

Improvement Activities

Cost

67.44

Reported Quality Measures

Appropriate Follow-up Imaging for Incidental Abdominal Lesions

Percentage of final reports for abdominal imaging studies for asymptomatic patients aged 18 years and older with one or more of the following noted incidentally with follow_up imaging recommended: - Liver lesion =< 0.5 cm - Cystic kidney lesion < 1.0 cm -…

Lower rates are better for this measure.

0%23 patients

Radiation Consideration for Adult CT: Utilization of Dose Lowering Techniques

Percentage of final reports for patients aged 18 years and older undergoing CT with documentation that one or more of the following dose reduction techniques were used: - Automated exposure control - Adjustment of the mA and/or kV according to patient size -…

100%549 patients

Radiology: Stenosis Measurement in Carotid Imaging Reports

Percentage of final reports for carotid imaging studies (neck magnetic resonance angiography [MRA], neck computed tomography angiography [CTA], neck duplex ultrasound, carotid angiogram) performed that include direct or indirect reference to measurements of…

100%23 patients

Providers report different measures because they deliver different services; reporting more or less information is not a reflection of quality. Star ratings appear only where CMS assigned them.

Other Providers at the Same Location NPPES 20

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

GARY W. BAUERLE M.D.

Radiology (Vascular & Interventional Radiology)

938 BANNOCK ST, STE 300
DENVER, CO 80204

Denver County (303) 914-8800

MICHAEL ERNEST BENNETT MD

Radiology (Diagnostic Radiology)

938 BANNOCK ST, STE. 300
DENVER, CO 80204

Denver County (303) 914-8800

IMAGING GROUP, LLC

Radiology (Body Imaging)

938 BANNOCK ST, STE 300
DENVER, CO 80204

Denver County (303) 914-8800

JAMES P. WILSON M.D.

Radiology (Nuclear Radiology)

938 BANNOCK ST, STE 300
DENVER, CO 80204

Denver County (303) 914-8800

ANA G CAJADE-LAW M.D.

Radiology (Diagnostic Radiology)

938 BANNOCK ST, STE 300
DENVER, CO 80204

Denver County (303) 914-8800

ERIC W. ROBBINS M.D.

Radiology (Diagnostic Radiology)

938 BANNOCK ST, STE 300
DENVER, CO 80204

Denver County (303) 914-8800

DARLA K. BROWN ARRT, RPA

Radiologic Technologist

938 BANNOCK ST, STE 300
DENVER, CO 80204

Denver County (303) 914-8800

BRIAN J. KLEPACKI ARRT, RPA

Radiologic Technologist

938 BANNOCK ST, STE 300
DENVER, CO 80204

Denver County (303) 914-8800

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 Robert Johnston's NPI number?

The NPI number for Robert Johnston is 1225049000. It was assigned to this individual provider in the NPPES registry on August 10, 2006.

Where is Robert Johnston located?

Robert Johnston practices at 938 Bannock St Ste 300, Denver, CO 80204. The listed phone number is (303) 914-8800.

What is Robert Johnston's specialty?

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

Is Robert Johnston enrolled in Medicare?

Yes. Robert Johnston is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Robert Johnston's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Robert Johnston reassigns Medicare benefits to 8 organizations: Orthopedic Centers Of Colorado, LLC (Denver, CO), Diversified Radiology Of Colorado, Inc (Lakewood, CO), Spectrum Medical Imaging, LLC (Brighton, CO), Vail Clinic Inc (Dillon, CO), Radiology Ltd., LLC (Tucson, AZ) and 3 more organizations, listed in the Medicare section above. Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Robert Johnston's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Robert Johnston accept?

Health plans from Ambetter Health, Ambetter from Absolute Total Care, Ambetter of North Carolina, Blue Cross Blue Shield of Arizona and Blue Cross and Blue Shield of Montana and 5 other insurers list Robert 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 Robert Johnston affiliated with any hospitals?

According to CMS data, Robert Johnston is affiliated with St James Healthcare and Hampton Regional Medical Center.

When was this NPI record last updated?

The NPPES record for Robert Johnston was last updated on March 5, 2008. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 years 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.