Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

STEPHEN A COLVIN MD
NPI 1215926274
Radiology - Diagnostic Radiology in Mesa, AZ

Q: What is Stephen Colvin's NPI number?

The NPI number for Stephen Colvin is 1215926274. It was assigned to this individual provider in the NPPES registry on October 20, 2005.

Q: What is Stephen Colvin's specialty?

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

Q: When was this NPI record last updated?

The NPPES record for Stephen Colvin was last updated on September 23, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 30 days 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 October 20, 2005PECOS EnrolledAccepts Medicare Assignment

82.37/100

CMS Quality Rating

1125 E SOUTHERN AVE, STE 300, MESA, AZ 85204(480) 545-8119(480) 926-8332 Get Directions Write a Review

NPPES record last updated: September 23, 2026. Verified against the NPPES registry weekly; last sync: October 18, 2026.

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About Stephen A Colvin Md NPPES

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

STEPHEN A COLVIN MD (NPI 1215926274) is an individual diagnostic radiology provider in Mesa, Arizona, licensed in Arizona (27762) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS, is affiliated with Tallahassee Memorial Healthcare, and is a graduate of Other (1998).

NPPES Registry Identity

NPI1215926274

Entity TypeIndividualMale

Primary Taxonomy2085R0202X

Provider Legal NameSTEPHEN A COLVINCredential: MD

Location Address1125 E SOUTHERN AVE, STE 300Mesa, AZ 85204-5045

Mailing Address1125 E Southern Ave, Ste 300Mesa, AZ 85204-5045 · (480) 545-8119 · Fax (480) 926-8332

Phone(480) 545-8119

Fax(480) 926-8332

Sole ProprietorNo

Medical School CMSOtherGraduated 1998

Enumeration DateOctober 20, 2005

Last NPPES UpdateSeptember 23, 2026

NPPES CertifiedSeptember 23, 2026

✔ NPI 1215926274 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 · 27762✔ Licensed in IL · 036.176148✔ Licensed in CA · C210152

Definition

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

1125 E SOUTHERN AVE, Mesa, AZ 85204

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Other Identifiers 6

Other1215926274AZ · Bcbsaz

Other1Z7135AZ · Health Net

Other82680AZ · Jrl

OtherZ142685Mediccare Ptan - Arl

OtherZ142686AZ · Medicare Ptan - Evdi

Medicaid574857AZ

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas, Oscar Insurance Company 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 and accepts Medicare assignment

Stephen A Colvin 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 ID8527043884

PECOS Enrollment IDI20040621001473, I20240416000806, I20241213003002, I20250721000382, I20250912003381

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 Stephen Colvin reassigns Medicare billing to 23 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Smi Imaging LLC

8.9 mi

Radiology, Mobile Mammography

8380 S KYRENE RD STE 105
Tempe, AZ 85284

Reassigned Medicare billing, Arizona enrollment
178 clinicians in this Medicare group

NPI 1609412642 (480) 961-5760

Vesta Telemedicine Solutions, PLLC

375 mi

Diagnostic Radiology

601 CARUSO AVE
Glendale, CA 91210

Reassigned Medicare billing, Arizona, Georgia and Texas enrollments
2 clinicians in this Medicare group

NPI 1952902116 (407) 738-4085

County Of Yoakum

521 mi

Family Medicine

412 MUSTANG AVENUE
Denver City, TX 79323

Reassigned Medicare billing, Texas enrollment
60 clinicians in this Medicare group

NPI 1417692450 (806) 592-2121

Lubbock County Hospital District

573 mi

Diagnostic Radiology

602 INDIANA AVENUE
Lubbock, TX 79415

Reassigned Medicare billing, Texas enrollment
101 clinicians in this Medicare group

NPI 1063468031 (806) 775-8400

Martin County Hospital District

588 mi

Pain Management

600 EAST INTERSTATE 20
Stanton, TX 79782

Reassigned Medicare billing, Texas enrollment
91 clinicians in this Medicare group

NPI 1477390227 (432) 607-3243

Fisher County Hospital District

660 mi

Emergency Medicine

774 STATE HIGHWAY 70 N
Rotan, TX 79546

Reassigned Medicare billing, Texas enrollment
Also billed through NPI 1598746703 (Texas)
106 clinicians in this Medicare group

NPI 1699898726 (325) 735-2256

Comanche County Medical Center Company

777 mi

Critical Access

10201 HIGHWAY 16
Comanche, TX 76442

Reassigned Medicare billing, Texas enrollment
100 clinicians in this Medicare group

NPI 1346544616 (254) 879-4900

North Star Mcd, LLC

842 mi

Radiology

4501 HERITAGE TRACE PKWY STE 115
Fort Worth, TX 76244

Reassigned Medicare billing, Arizona enrollment
2 clinicians in this Medicare group

NPI 1700550282 (972) 649-6460

North Star Gv, LP

852 mi

Radiology

2535 IRA E WOODS AVE STE 101
Grapevine, TX 76051

Reassigned Medicare billing, Arizona enrollment
2 clinicians in this Medicare group

NPI 1922512664 (972) 649-6460

North Star Fm, LP

853 mi

Radiology

4951 LONG PRAIRIE ROAD, SUITE 105
Flower Mound, TX 75028

Reassigned Medicare billing, Arizona enrollment
2 clinicians in this Medicare group

NPI 1174812028 (972) 899-5901

North Star Cn, LP

864 mi

Radiology

4780 N JOSEY LN
Carrollton, TX 75010

Reassigned Medicare billing, Arizona enrollment
2 clinicians in this Medicare group

NPI 1013305945 (972) 492-1334

North Star Npt LP

867 mi

Radiology

6101 W PLANO PKWY STE 150
Plano, TX 75093

Reassigned Medicare billing, Arizona enrollment

NPI 1699387647 (972) 649-6460

North Star Mri Of Frisco LP

868 mi

Radiology

8501 WADE BLVD., SUITE 220
Frisco, TX 75034

Reassigned Medicare billing, Arizona enrollment
2 clinicians in this Medicare group

NPI 1649356759 (214) 618-3420

North Star Diagnostic Imaging, LLC

871 mi

Radiology

3700 W 15TH ST, BUILDING D, SUITE 200
Plano, TX 75075

Reassigned Medicare billing, Arizona enrollment
2 clinicians in this Medicare group

NPI 1467787739 (972) 758-9000

North Star Fp, LP

872 mi

Radiology

11970 N CENTRAL EXPY STE 100
Dallas, TX 75243

Reassigned Medicare billing, Arizona enrollment

NPI 1033630835 (972) 649-6460

North Star Mri LP

875 mi

Radiology

997 RAINTREE CIRCLE, SUITE 110
Allen, TX 75013

Reassigned Medicare billing, Arizona enrollment
2 clinicians in this Medicare group

NPI 1033174701 (972) 954-8001

Utmb Faculty Group Practice

1,044 mi

General Practice

301 UNIVERSITY BLVD
Galveston, TX 77555

Reassigned Medicare billing, Arizona and Texas enrollments
6 clinicians in this Medicare group

NPI 1942241146 (409) 772-2222

Buchmann Biomedical Imaging LLC

1,249 mi

Physiological Laboratory

3450 BRIDGELAND DR STE F
Bridgeton, MO 63044

Reassigned Medicare billing, Missouri enrollment

NPI 1346831625 (314) 972-0100

Lawrence County Memorial Hospital

1,395 mi

Rural Health

2111 LEXINGTON AVE
Lawrenceville, IL 62439

Reassigned Medicare billing, Illinois enrollment
Also billed through NPI 1881643401 (Illinois)
78 clinicians in this Medicare group

NPI 1811183692 (618) 943-7216

Tallahassee Memorial Healthcare Inc

1,537 mi

Anesthesiology

1002 N ARNOLD RD
Panama City Beach, FL 32413

Reassigned Medicare billing, Florida enrollment
654 clinicians in this Medicare group

NPI 1992532477 (850) 431-4556

Lifebrite Hospital Group Of Early LLC

1,572 mi

Rural Health

11045 COLUMBIA ST, SUITE B
Blakely, GA 39823

Reassigned Medicare billing, Georgia enrollment
29 clinicians in this Medicare group

NPI 1912430224 (229) 723-4313

Florida Medical Specialists, LLC

1,763 mi

Internal Medicine

2128 MAIN ST
Dunedin, FL 34698

Reassigned Medicare billing, Florida enrollment
186 clinicians in this Medicare group

NPI 1851056428 (727) 736-7733

Impression Imaging LLC

1,951 mi

Diagnostic Radiology

7180 N UNIVERSITY DR
Tamarac, FL 33321

Reassigned Medicare billing, Florida enrollment
84 clinicians in this Medicare group

NPI 1780941864 (954) 580-2780

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 29

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.

310 services274 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.

62 services59 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.

60 services59 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.

55 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.

50 services48 patients

Ct scan of blood vessels of head with contrast 70496

A CT scan of the head's blood vessels with contrast is a diagnostic procedure. A special dye (contrast) is injected into your body to make the blood vessels visible on the scan. This helps identify issues like blockages or abnormalities in your head's blood vessels.

47 services47 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.

47 services44 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.

45 services44 patients

Ct scan of blood vessels of neck with contrast 70498

A CT scan of the neck's blood vessels with contrast is a diagnostic procedure. It uses X-rays and a special dye to create detailed images of your neck's blood vessels. This helps doctors detect issues such as blockages or abnormalities.

38 services38 patients

Double contrast x-ray of esophagus 74221

A double contrast x-ray of the esophagus is a diagnostic procedure that uses a special type of x-ray and a contrast material to capture detailed images of your esophagus. This helps in identifying any abnormalities or issues.

31 services31 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.

30 services28 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.

26 services25 patients

X-ray of abdomen, 2 views 74019

An X-ray of the abdomen, 2 views, is a non-invasive imaging test. It uses a small amount of radiation to capture pictures of the structures inside your belly. The two views provide different angles, helping doctors see your organs clearly and detect any issues.

22 services21 patients

Single contrast x-ray of esophagus 74220

A single contrast x-ray of the esophagus is a non-invasive procedure where a radiopaque substance is swallowed to highlight the esophagus. This allows doctors to capture clear images of the area, aiding in the diagnosis of any abnormalities or issues.

22 services22 patients

Mri scan of brain without contrast 70551

An MRI scan of the brain without contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to create detailed images of your brain. It helps in detecting abnormalities like tumors, stroke, inflammation, or infection.

20 services20 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.

20 services18 patients

Complete ultrasound scan behind abdominal cavity 76770

A complete ultrasound scan behind the abdominal cavity is a non-invasive imaging procedure. It uses sound waves to create pictures of the structures and organs located at the back of your abdomen. It helps in diagnosing health conditions and monitoring ongoing treatments.

18 services18 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.

16 services15 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.

15 services15 patients

Ct scan of abdominal aorta and both leg arteries with contrast 75635

A CT scan of the abdominal aorta and both leg arteries with contrast is a medical imaging procedure. A special dye is injected to make your blood vessels visible on the scan. This helps to check for any blockages or abnormalities in these areas.

15 services15 patients

Nuclear medicine study of liver and bile duct system 78226

A nuclear medicine study of the liver and bile duct system involves the use of a small amount of radioactive material to create detailed images. This helps doctors examine the liver's function and structure, and detect any abnormalities in the bile ducts.

15 services15 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.

14 services14 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.

14 services14 patients

Nuclear medicine studies of heart muscle at rest and with stress and spect 78452

Nuclear medicine studies of the heart involve two parts: rest and stress. During rest, images are taken of your heart at ease. During stress, images are taken after exercise or medication-induced stress. SPECT is a special imaging technique providing 3D pictures of your heart, helping identify any issues.

14 services14 patients

Ct scan of abdomen and pelvis before and after contrast 74178

A CT scan of your abdomen and pelvis with and without contrast helps visualize your internal organs better. Contrast is a special dye that improves the clarity of the images. It's taken orally or injected into your veins before the scan. The process is painless and quick.

13 services13 patients

Single contrast x-ray of upper digestive tract 74240

A single contrast x-ray of the upper digestive tract is a diagnostic procedure that uses a special dye and x-rays to see how your digestive system is functioning. It helps in detecting abnormalities or diseases in your esophagus, stomach, and the first part of your small intestine.

13 services13 patients

Double contrast x-ray of upper digestive tract 74246

A double contrast x-ray of the upper digestive tract is a diagnostic procedure. It involves drinking a substance to coat your stomach and esophagus, and then a gas-forming agent. X-rays are taken, providing detailed images to help identify any abnormalities in your upper digestive system.

13 services13 patients

X-ray of knee, 4 or more views 73564

An X-ray of the knee, 4 or more views, is a non-invasive imaging test. It involves capturing multiple images of your knee from different angles. This helps in diagnosing conditions such as fractures, arthritis, or infections. The procedure is quick and painless.

12 services12 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.

11 services11 patients

Hospital Affiliations CMS Care Compare 4

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

Tallahassee Memorial Healthcare

Acute Care Hospitals · Tallahassee, FL

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number100135

Location1300 Miccosukee RdTallahassee, FL 32308 · Leon County

Emergency services Birthing friendly

Emanuel Medical Center

Acute Care Hospitals · Swainsboro, GA

4/5 CMS rating

OwnershipGovernment - Hospital District or Authority

CMS Certification Number110109

Location117 Kite RoadSwainsboro, GA 30401 · Emanuel County

Emergency services

Mountain Lakes Medical Center

Critical Access Hospitals · Clayton, GA

OwnershipProprietary

CMS Certification Number111336

Location162 Legacy PointClayton, GA 30525 · Rabun County

Emergency services

Lake Granbury Medical Center

Acute Care Hospitals · Granbury, TX

4/5 CMS rating

OwnershipProprietary

CMS Certification Number450596

Location1310 Paluxy RdGranbury, TX 76048 · Hood County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 85204 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.

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.

82.37/100

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

Scored as part of a group practice

Quality

83.57

Promoting Interoperability

100

Improvement Activities

Cost

57.66

Reported Quality Measures

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 -…

99%559 patients

Radiology: Reminder System for Screening Mammograms

Percentage of patients undergoing a screening mammogram whose information is entered into a reminder system with a target due date for the next mammogram

100%58 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%88 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 16

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

ASIM A. KHWAJA M.D.

Radiology (Diagnostic Radiology)