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

DR. JOHN J. HARRIS JR. M.D.
NPI 1013276492
Radiology - Diagnostic Radiology in Aurora, CO

Q: What is John Harris's NPI number?

The NPI number for John Harris is 1013276492. It was assigned to this individual provider in the NPPES registry on May 7, 2012.

Q: What is John Harris'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 John Harris was last updated on September 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 34 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 May 07, 2012PECOS EnrolledAccepts Medicare Assignment

100/100

CMS Quality Rating

13001 E. 17TH PLACE, UNIVERSITY OF COLORADO DENVER SCHOOL OF MEDICINE GME, AURORA, CO 80045(303) 724-6031 Get Directions Write a Review

NPPES record last updated: September 28, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Sep 28, 2026, Jun 10, 2025, Feb 22, 2023 (3 updates tracked since 2023).

On this page

About Dr. John J. Harris Jr. M.d. NPPES

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

DR. JOHN J. HARRIS JR. M.D. (NPI 1013276492) is an individual diagnostic radiology provider in Aurora, Colorado, licensed in Maine (MD22332) and active in the NPI registry since May 2012. He is enrolled in Medicare PECOS, is affiliated with Maine Medical Center, and maintains a secondary practice location in Westbrook.

NPPES Registry Identity

NPI1013276492

Entity TypeIndividualMale

Primary Taxonomy2085R0202X

Provider Legal NameDR. JOHN J. HARRIS JR.Credential: M.D.

Location Address13001 E. 17TH PLACE, UNIVERSITY OF COLORADO DENVER SCHOOL OF MEDICINE GMEAurora, CO 80045-2579

Mailing Address13001 E 17th PlAurora, CO 80045-2570 · (303) 724-6031

Phone(303) 724-6031

Sole ProprietorNo

Medical School CMSIndiana University School Of MedicineGraduated 2012

Enumeration DateMay 7, 2012

Last NPPES UpdateSeptember 28, 20263 updates tracked since enumeration

NPPES CertifiedSeptember 28, 2026

✔ NPI 1013276492 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyRadiology · Diagnostic RadiologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0202X

License✔ Licensed in ME · MD22332

Definition

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

Also ListedStudent in an Organized Health Care Education/Training ProgramTaxonomy 390200000X

13001 E. 17TH PLACE, Aurora, CO 80045

Open in Google Maps ↗

Secondary Practice Location 1

Location 115 Rock Row Ste 110Westbrook, ME 04092-4877 · Phone (207) 303-3300 · Fax (207) 241-4439

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from NH Healthy Families, WellSense Health Plan.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

Dr. John J. Harris Jr. M.d. 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 ID9032482864

PECOS Enrollment IDI20180904000662

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 John Harris reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Maine Center For Cancer Medicine & Blood Disorders, P.A.

1,792 mi

Hematology & Oncology

11 ROCK ROW STE 120
Westbrook, ME 04092

Reassigned Medicare billing, Maine enrollment
Medicare enrollment name: Maine Center For Cancer Medicine & Blood Disorders PA
71 clinicians in this Medicare group

NPI 1205896107 (207) 303-3000

X-Ray Professional Association

1,796 mi

Diagnostic Radiology

300 MAIN ST
Lewiston, ME 04240

Reassigned Medicare billing, Maine enrollment
10 clinicians in this Medicare group

NPI 1366429763 (207) 795-2400

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 46

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, 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.

251 services243 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.

206 services199 patients

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.

172 services141 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.

160 services156 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.

114 services107 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.

96 services96 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.

92 services91 patients

Nuclear medicine study from skull base to mid-thigh with ct scan 78815

A nuclear medicine study from skull base to mid-thigh with a CT scan involves using a small amount of radioactive material and CT imaging to examine body tissues and organs. This helps detect any abnormalities by providing detailed images of the body's internal structure.

80 services77 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.

73 services69 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.

65 services60 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.

61 services58 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.

53 services53 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.

53 services51 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.

51 services50 patients

Mri scan of lower spinal canal without contrast 72148

An MRI scan of the lower spinal canal without contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to produce detailed images of your lower spine. This helps identify issues like disc problems, tumors, or nerve conditions. No dye is used.

50 services50 patients

Use of a drug to induce depression of consciousness by physician performing a procedure (5 years or older), initial 15 minutes 99152

This procedure involves a doctor administering a medication to reduce your consciousness during a procedure. This helps in managing discomfort and anxiety. The initial application lasts for 15 minutes and is for individuals aged 5 years or older.

48 services41 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.

43 services43 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.

42 services40 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.

41 services41 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.

39 services35 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.

39 services39 patients

Imaging for evaluation of swallowing function 74230

This process, known as a swallowing study, uses imaging technology to view how food and liquid move from your mouth to your stomach. It helps identify any issues you may have swallowing, which can be crucial for determining the best treatment plan.

34 services34 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.

27 services27 patients

Mri scan of brain before and after contrast 70553

An MRI scan of the brain, both before and after contrast, helps visualize different brain structures. Initially, images are taken without a contrast agent. Then, a safe dye is injected which helps highlight certain areas, providing clearer, more detailed images.

26 services26 patients

Fluoroscopic guidance for insertion or removal of central vein access device 77001

Fluoroscopic guidance for central vein access device insertion or removal is a procedure where a special X-ray, called a fluoroscope, is used to help accurately place or remove a device in a central vein. This device aids in delivering medications or collecting blood samples.

25 services24 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.

24 services24 patients

X-ray of knee, 3 views 73562

An X-ray of the knee, 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the knee from three different angles. This helps medical professionals to diagnose and monitor conditions like arthritis, fractures, or infections. The process is quick and painless.

23 services22 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.

21 services21 patients

Ultrasonic guidance for blood vessel access 76937

Ultrasonic guidance for blood vessel access is a medical procedure where sound waves are used to create images of your blood vessels. This helps doctors to accurately locate and access the vessels for treatments or tests, ensuring safety and precision.

21 services20 patients

Mri scan of upper spinal canal without contrast 72141

An MRI scan of the upper spinal canal without contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to create detailed images of your upper spine. This helps doctors identify issues such as injuries, infections or diseases. No dye is used.

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 services19 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.

19 services18 patients

X-ray of hand, minimum of 3 views 73130

An X-ray of the hand, minimum of 3 views, is a non-invasive imaging test. It uses a small amount of radiation to produce images of the bones in your hand from different angles. This helps in diagnosing fractures, infections, arthritis, or other abnormalities. It's quick and painless.

17 services16 patients

Ct scan of abdomen before and after contrast 74170

A CT scan of the abdomen before and after contrast is a diagnostic procedure. It involves taking detailed images of your abdomen area. Initially, images are taken without a contrast agent. Then, a contrast dye is given to highlight specific areas inside your body, helping to provide clearer images for better diagnosis.

17 services17 patients

Mri scan of abdomen without contrast 74181

An MRI scan of the abdomen without contrast is a non-invasive imaging test. It uses a magnetic field and radio waves to create detailed pictures of your abdominal organs. This procedure doesn't involve radiation or dye injection.

16 services15 patients

Ct scan of pelvis without contrast 72192

A CT scan of the pelvis without contrast is a non-invasive imaging test. It uses X-rays to create detailed pictures of your lower abdomen area. It helps in detecting issues like injuries, inflammation, or abnormal growths. It doesn't involve any dye injection.

15 services15 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.

14 services13 patients

X-ray of lower leg, 2 views 73590

An X-ray of the lower leg, 2 views, is a quick, painless test that produces images of the bones in your lower leg. It helps to identify fractures, infections, or diseases. Two different angles are used to provide a comprehensive view of the leg's structure.

13 services12 patients

Limited ultrasound scan behind abdominal cavity 76775

A limited ultrasound scan behind the abdominal cavity is a non-invasive imaging method that helps visualize structures in the back of your abdomen. This procedure uses sound waves to create pictures of these areas, assisting in diagnosing certain conditions.

13 services13 patients

X-ray of elbow, minimum of 3 views 73080

An elbow X-ray with a minimum of 3 views is a non-invasive imaging test. It helps visualize the bones of the elbow from different angles. This aids in diagnosing conditions like fractures or arthritis. The procedure is quick, painless, and usually takes around 15 minutes.

12 services12 patients

X-ray of thigh bone, minimum 2 views 73552

An X-ray of the thigh bone is a non-invasive imaging test. It involves passing a small amount of radiation through the thigh to produce images of the bone structure. At least two different angles are captured for a comprehensive view. This helps detect fractures, infections, or other abnormalities.

12 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.

12 services12 patients

Ultrasound scan of abdominal aorta 76706

An ultrasound scan of the abdominal aorta is a non-invasive imaging test. It uses sound waves to create pictures of the main blood vessel in your abdomen, the aorta, to check its size and shape. This helps detect any abnormalities or issues early.

12 services12 patients

Insertion of tunneled central venous tube for infusion (5 years or older) 36558

The insertion of a tunneled central venous tube is a procedure where a thin, flexible tube is placed into a large vein, usually in the neck or chest. This tube allows healthcare providers to give medications, fluids, or nutrients directly into your bloodstream over a longer period.

11 services11 patients

Mri scan of middle spinal canal without contrast 72146

An MRI scan of the middle spinal canal without contrast is a non-invasive imaging test. It uses magnetic fields and radio waves to create detailed images of your spine. This helps doctors identify any abnormalities or issues in your spinal canal. No dye is used in this procedure.

11 services11 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.

11 services11 patients

Hospital Affiliations CMS Care Compare 5

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

Maine Medical Center

Acute Care Hospitals · Portland, ME

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number200009

Location22 Bramhall StPortland, ME 04102 · Cumberland County

Emergency services Birthing friendly

Central Maine Medical Center

Acute Care Hospitals · Lewiston, ME

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number200024

Location300 Main StreetLewiston, ME 04240 · Androscoggin County

Emergency services Birthing friendly

St Mary's Regional Medical Center

Acute Care Hospitals · Lewiston, ME

3/5 CMS rating

OwnershipVoluntary non-profit - Church

CMS Certification Number200034

Location93 Campus Avenue - PO Box 291Lewiston, ME 04243 · Androscoggin County

Emergency services

Rumford Hospital

Critical Access Hospitals · Rumford, ME

OwnershipProprietary

CMS Certification Number201306

Location420 Franklin StreetRumford, ME 04276 · Oxford County

Emergency services

Bridgton Hospital

Critical Access Hospitals · Bridgton, ME

OwnershipVoluntary non-profit - Private

CMS Certification Number201310

Location10 Hospital DriveBridgton, ME 04009 · Cumberland County

Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 80045 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.

100/100

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

Scored as part of a group practice

Quality

91.27

Improvement Activities

Reported Quality Measures

Radiation Consideration for Adult CT: Utilization of Dose Lowering Techniques

100%921 patients

Radiology: Exposure Dose Indices Reported for Procedures Using Fluoroscopy

94%53 patients4/55-star benchmark: 100%

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.

DR. TYLER MCCALL MILLER MD

Student in an Organized Health Care Education/Training Program

13001 E. 17TH PLACE, UNIVERSITY OF COLORADO DENVER SCHOOL OF MEDICINE GME
AURORA, CO 80045

Adams County (303) 724-6031

ANAS SAID M.D.

Student in an Organized Health Care Education/Training Program

13001 E. 17TH PLACE, UNIVERSITY OF COLORADO SCHOOL OF MEDICINE GME
AURORA, CO 80045

Adams County (720) 777-2763

VLADIMIR KREPOSTIN

Student in an Organized Health Care Education/Training Program

13001 E. 17TH PLACE, UNIVERSITY OF COLORADO SCHOOL OF MEDICINE GME
AURORA, CO 80045

Adams County (303) 724-1788

DR. ANAS ABDEL HALEEM ABU HAZEEM M.D.

Student in an Organized Health Care Education/Training Program

13001 E. 17TH PLACE, UNIVERSITY OF COLORADO SCHOOL OF MEDICINE GME
AURORA, CO 80045

Adams County (720) 777-2940

DAVID LEOPOLD M.D.

Student in an Organized Health Care Education/Training Program

13001 E. 17TH PLACE
AURORA, CO 80045

Adams County (303) 724-2685

CHRISTOPHER J. CARRUBBA MD

Student in an Organized Health Care Education/Training Program

13001 E. 17TH PLACE, UNIVERSITY OF COLORADO SCHOOL OF MEDICINE GME
AURORA, CO 80045

Adams County (303) 724-1788

BENJAMIN ANDREW OLSEN MD

Student in an Organized Health Care Education/Training Program

13001 E. 17TH PLACE
AURORA, CO 80045

Adams County (720) 777-3846

DR. LEONORA ROSE SLATNICK M.D.

Pediatrics (Pediatric Hematology-Oncology)

13001 E. 17TH PLACE, UNIVERSITY OF COLORADO SCHOOL OF MEDICINE GME
AURORA, CO 80045

Adams County (720) 777-3846

MARIUSZ PRZEMYSLAW BOROWICZ D.D.S

Student in an Organized Health Care Education/Training Program

13001 E. 17TH PLACE, UNIVERSITY OF COLORADO DENVER SCHOOL OF MEDICINE GME
AURORA, CO 80045

Adams County (303) 724-6496

JILL H LISS MD

Obstetrics & Gynecology

13001 E. 17TH PLACE, UNIVERSITY OF COLORADO SCHOOL OF MEDICINE GME
AURORA, CO 80045

Adams County (303) 724-2052

JILLIAN MAYER COTTER M.D.

Pediatrics

13001 E. 17TH PLACE
AURORA, CO 80045

Adams County (720) 777-3846

DR. ALYA HASAN ASKAR M.D.

Student in an Organized Health Care Education/Training Program

13001 E. 17TH PLACE, UNIVERSITY OF COLORADO DENVER SCHOOL OF MEDICINE GME
AURORA, CO 80045

Adams County (303) 724-6031

DR. STACY ELAINE DIXON M.D., PH.D.

Psychiatry & Neurology (Neuromuscular Medicine)

13001 E. 17TH PLACE
AURORA, CO 80045

Adams County (303) 724-4330

ANDREW DEMARS MD

Emergency Medicine

13001 E. 17TH PLACE, UNIVERSITY OF COLORADO SCHOOL OF MEDICINE GME
AURORA, CO 80045

Adams County (970) 690-1609

ASHLEY ULLRICH M.D.

Internal Medicine

13001 E. 17TH PLACE, UNIVERSITY OF COLORADO SCHOOL OF MEDICINE GME
AURORA, CO 80045

Adams County (307) 267-3173

DOUGLAS MARVIN OVERBEY M.D.

Surgery

13001 E. 17TH PLACE, UNIVERSITY OF COLORADO DENVER SCHOOL OF MEDICINE GME
AURORA, CO 80045

Adams County (303) 724-6031

DR. SIOBHAN O'KEEFE MB,BCH,BAO

Student in an Organized Health Care Education/Training Program

13001 E. 17TH PLACE, UNIVERSITY OF COLORADO GME
AURORA, CO 80045

Adams County (303) 724-2393

COURTNEY SUSAN LUNDIN D.M.D.

Student in an Organized Health Care Education/Training Program

13001 E. 17TH PLACE, UNIVERSITY OF COLORADO DENVER SCHOOL OF MEDICINE GME
AURORA, CO 80045

Adams County (303) 724-6031

DR. NICOLE GREEN M.D.

Student in an Organized Health Care Education/Training Program

13001 E. 17TH PLACE, UNIVERSITY OF COLORADO SCHOOL OF MEDICINE GME
AURORA, CO 80045

Adams County (303) 724-2680

MRS. REBEKAH RUTH GAENSBAUER MB,BAO, BCH

Pediatrics

13001 E. 17TH PLACE, UNIVERSITY OF COLORADO DENVER SCHOOL OF MEDICINE GME
AURORA, CO 80045

Adams County (303) 724-6031

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 John Harris's NPI number?

The NPI number for John Harris is 1013276492. It was assigned to this individual provider in the NPPES registry on May 7, 2012.

Where is John Harris located?

John Harris practices at 13001 E. 17th Place University Of Colorado Denver School Of Medicine Gme, Aurora, CO 80045. The listed phone number is (303) 724-6031.

What is John Harris's specialty?

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

Is John Harris enrolled in Medicare?

Yes. John Harris 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.

Which organizations bill Medicare for John Harris's services?

According to the CMS Revalidation Reassignment List (October 2026 release), John Harris reassigns Medicare benefits to 2 organizations: Maine Center For Cancer Medicine & Blood Disorders, P.A. (Westbrook, ME) and X-Ray Professional Association (Lewiston, ME). 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 John Harris's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does John Harris accept?

Health plans from Ambetter from NH Healthy Families and WellSense Health Plan list John Harris 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 John Harris affiliated with any hospitals?

According to CMS data, John Harris is affiliated with Maine Medical Center, Central Maine Medical Center, St Mary's Regional Medical Center, Rumford Hospital and Bridgton Hospital.

When was this NPI record last updated?

The NPPES record for John Harris was last updated on September 28, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 34 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.