GREGORY WALTON MD
NPI 1700884152
Radiology - Diagnostic Radiology in Louisville, KY

Q: What is Gregory Walton's NPI number?

The NPI number for Gregory Walton is 1700884152. It was assigned to this individual provider in the NPPES registry on July 11, 2005.

Q: What is Gregory Walton'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 Gregory Walton was last updated on February 27, 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 July 11, 2005PECOS EnrolledAccepts Medicare Assignment

75/100

CMS Quality Rating

200 E CHESTNUT ST, LOUISVILLE, KY 40202(502) 629-7601 Get Directions Write a Review

NPPES record last updated: February 27, 2008. Verified against the NPPES registry weekly; last sync: September 13, 2026.

On this page

About Gregory Walton Md NPPES

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

GREGORY WALTON MD (NPI 1700884152) is an individual diagnostic radiology provider in Louisville, Kentucky, licensed in Kentucky (28071) and active in the NPI registry since July 2005. He is enrolled in Medicare PECOS, is affiliated with Clark Memorial Hospital, and is a graduate of University Of Louisville School Of Medicine (1990).

NPPES Registry Identity

NPI1700884152

Entity TypeIndividualMale

Primary Taxonomy2085R0202X

Provider Legal NameGREGORY WALTONCredential: MD

Location Address200 E CHESTNUT STLouisville, KY 40202-1831

Mailing Address234 E Gray St, Suite 850Louisville, KY 40202-1900 · (502) 585-1735

Phone(502) 629-7601

Sole ProprietorNo

Medical School CMSUniversity Of Louisville School Of MedicineGraduated 1990

Enumeration DateJuly 11, 2005

Last NPPES UpdateFebruary 27, 2008

✔ NPI 1700884152 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 KY · 28071

Definition

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

200 E CHESTNUT ST, Louisville, KY 40202

Open in Google Maps ↗

Other Identifiers 8

Other50005989KY · Passport

Other1051836KY · Passport

Medicare PIN0287614KY

Medicare PINCK0677KY

Medicaid64280712KY

Medicare UPING16484

Other000000069104KY · Bc Bs

Other000000308613KY · Bc Bs

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

Gregory Walton 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 ID4082527213

PECOS Enrollment IDI20031112000443, I20241209001925

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 40

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.

729 services677 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.

496 services463 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.

229 services223 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.

185 services183 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.

147 services141 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.

136 services133 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.

131 services119 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.

126 services124 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.

96 services94 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.

86 services86 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.

86 services86 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.

75 services73 patients

Ct scan of lower spine without contrast 72131

A CT scan of the lower spine without contrast is a non-invasive imaging test. It uses X-rays to create detailed images of your lower back area, helping to detect conditions like fractures, infections, or tumors. It's painless and generally quick.

57 services56 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.

56 services56 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.

55 services46 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.

50 services50 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.

48 services45 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.

48 services48 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.

40 services40 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.

39 services31 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.

37 services37 patients

Ct scan of face without contrast 70486

A CT scan of the face without contrast is a non-invasive imaging procedure. It uses X-rays to create detailed pictures of your face, including bones, soft tissues, and blood vessels. It's often used to diagnose diseases, injuries, or abnormalities. No contrast dye is used in this procedure.

34 services34 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.

33 services32 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.

33 services33 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.

29 services27 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.

27 services23 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.

25 services23 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.

25 services24 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.

23 services23 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

Ct scan of middle spine without contrast 72128

A CT scan of the middle spine without contrast is a non-invasive imaging test. It uses X-rays to create detailed pictures of your mid-spine area. This scan helps doctors identify issues like fractures, tumors, or infections. No dye is used in this procedure.

20 services18 patients

Nuclear medicine study of bone and/or joint whole body 78306

A nuclear medicine study of bone and/or joint whole body involves injecting a small amount of radioactive material into your body. This material travels to your bones and emits energy. A special camera captures this energy, creating images of your bones to help identify any abnormalities.

16 services16 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.

15 services15 patients

Nuclear medicine study of bone taken at different times 78315

A nuclear medicine bone study involves injecting a small amount of radioactive material into your body. This material collects in the bones and is detected by a special camera to create images. These images are taken at different times to track changes and help diagnose bone conditions.

15 services15 patients

Ultrasound scan of uterus, ovaries, tubes, cervix and pelvic area through vagina 76830

An ultrasound scan of the lower abdominal region is a safe, non-invasive procedure that uses sound waves to create images of internal structures. This helps in checking the health of reproductive organs and detecting any abnormalities. The scan is done via a small probe inserted into the body.

14 services14 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.

13 services13 patients

Mri scan of lower spinal canal before and after contrast 72158

An MRI scan of the lower spinal canal with contrast is a non-invasive imaging procedure. It uses magnetic fields to generate detailed images of your lower spine. A contrast agent is injected to enhance these images, helping doctors see issues more clearly.

13 services13 patients

X-ray of forearm, 2 views 73090

An X-ray of the forearm, 2 views, is a diagnostic procedure where two different pictures of your forearm are taken using a small amount of radiation. These images help doctors assess your bone health and identify any fractures, infections, or other abnormalities.

13 services13 patients

Complete ultrasound scan of pelvis 76856

A complete ultrasound scan of the pelvis is a safe, non-invasive imaging procedure. It uses sound waves to create pictures of your lower abdomen area, helping doctors to evaluate and diagnose any potential issues. It's painless and usually takes about 30 minutes.

13 services13 patients

Ct scan of leg without contrast 73700

A CT scan of the leg is a non-invasive imaging test that uses X-rays to capture detailed images of your leg's bones, muscles, and blood vessels. It doesn't use contrast dye and doesn't cause any pain. It helps in diagnosing injuries or diseases.

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.

Clark Memorial Hospital

Acute Care Hospitals · Jeffersonville, IN

2/5 CMS rating

OwnershipVoluntary non-profit - Other

CMS Certification Number150009

Location1220 Missouri AveJeffersonville, IN 47130 · Clark County

Emergency services Birthing friendly

Norton-King's Daughters' Health

Acute Care Hospitals · Madison, IN

3/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number150069

Location1373 East Sr 62Madison, IN 47250 · Jefferson County

Emergency services Birthing friendly

Uofl Health - Shelbyville Hospital

Acute Care Hospitals · Shelbyville, KY

OwnershipVoluntary non-profit - Private

CMS Certification Number180016

Location727 Hospital DriveShelbyville, KY 40065 · Shelby County

Emergency services

Jewish Hospital & St Mary's Healthcare

Acute Care Hospitals · Louisville, KY

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number180040

Location200 Abraham Flexner WayLouisville, KY 40202 · Jefferson County

Emergency services

Norton Hospitals, Inc

Acute Care Hospitals · Louisville, KY

2/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number180088

Location200 East Chestnut StreetLouisville, KY 40202 · Jefferson County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 40202 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

$82.24 typical visit price

range $52.76 – $162.27

Typical copayment $20.56 (range $13.19 – $40.56)

Most-billed visit code 99203

Established Patient

$66.24 typical visit price

range $16.53 – $131.99

Typical copayment $16.56 (range $4.13 – $32.99)

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.

75/100

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

Individually scored

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.

CATHERINE JARRETT PA-C

Physician Assistant (Medical)

200 E CHESTNUT ST, SUITE 303
LOUISVILLE, KY 40202

Jefferson County (502) 629-5552

BENJAMIN MARTIN CHOI SAMPEDRO C.R.N.A.

Nurse Anesthetist, Certified Registered

200 E CHESTNUT ST
LOUISVILLE, KY 40202

Jefferson County (214) 687-0001

KEVIN DANIEL MAHONEY APRN

Nurse Practitioner (Acute Care)

200 E CHESTNUT ST
LOUISVILLE, KY 40202

Jefferson County (502) 634-6767

ANN ADAMS FRASER CRNA

Nurse Anesthetist, Certified Registered

200 E CHESTNUT ST
LOUISVILLE, KY 40202

Jefferson County (502) 629-8000

NORTON HEALTHCARE

Pharmacy (Institutional Pharmacy)

200 E CHESTNUT ST
LOUISVILLE, KY 40202

Jefferson County (502) 629-7273

AARON NEAL SKINNER MD

Internal Medicine

200 E CHESTNUT ST, SUITE 303
LOUISVILLE, KY 40202

Jefferson County (502) 629-5552

DR. KEVIN ANTHONY MARQUES

Obstetrics & Gynecology

200 E CHESTNUT ST
LOUISVILLE, KY 40202

Jefferson County (502) 629-8000

SHAUN MADAHAR M.D.

Internal Medicine

200 E CHESTNUT ST, SERVICE BUILDING SUITE 303
LOUISVILLE, KY 40202

Jefferson County (502) 629-5552

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 Gregory Walton's NPI number?

The NPI number for Gregory Walton is 1700884152. It was assigned to this individual provider in the NPPES registry on July 11, 2005.

Where is Gregory Walton located?

Gregory Walton practices at 200 E Chestnut St, Louisville, KY 40202. The listed phone number is (502) 629-7601.

What is Gregory Walton's specialty?

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

Is Gregory Walton enrolled in Medicare?

Yes. Gregory Walton 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.

Is Gregory Walton affiliated with any hospitals?

According to CMS data, Gregory Walton is affiliated with Clark Memorial Hospital, Norton-King's Daughters' Health, UofL Health - Shelbyville Hospital, Jewish Hospital & St Mary's Healthcare and Norton Hospitals, Inc.

When was this NPI record last updated?

The NPPES record for Gregory Walton was last updated on February 27, 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.