DR. SPENCER N ASHTON M.D
NPI 1063678514
Radiology - Radiation Oncology in St George, UT

Q: What is Spencer Ashton's NPI number?

The NPI number for Spencer Ashton is 1063678514. It was assigned to this individual provider in the NPPES registry on August 4, 2008.

Q: What is Spencer Ashton's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.

Q: When was this NPI record last updated?

The NPPES record for Spencer Ashton was last updated on April 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since August 04, 2008PECOS EnrolledAccepts Medicare Assignment

600 S MEDICAL CENTER DR, ST GEORGE, UT 84790(435) 688-4175 Get Directions Write a Review

NPPES record last updated: April 9, 2026. Verified against the NPPES registry weekly; last sync: September 27, 2026.

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About Dr. Spencer N Ashton M.d NPPES

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

DR. SPENCER N ASHTON M.D (NPI 1063678514) is an individual radiation oncology provider in St George, Utah, licensed in Utah (8602188-1205) and active in the NPI registry since August 2008. He is enrolled in Medicare PECOS, is affiliated with Cedar City Hospital, and maintains a secondary practice location in Walla Walla.

NPPES Registry Identity

NPI1063678514

Entity TypeIndividualMale

Primary Taxonomy2085R0001X

Provider Legal NameDR. SPENCER N ASHTONCredential: M.D

Location Address600 S MEDICAL CENTER DRSt George, UT 84790-8723

Mailing AddressPo Box 27128Salt Lake City, UT 84127-0128

Phone(435) 688-4175

Sole ProprietorNo

Medical School CMSUniversity Of Virginia School Of MedicineGraduated 2006

Enumeration DateAugust 4, 2008

Last NPPES UpdateApril 9, 2026

NPPES CertifiedApril 9, 2026

✔ NPI 1063678514 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Radiation OncologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0001X

Licenses✔ Licensed in UT · 8602188-1205✔ Licensed in WA · MD60226451

Definition

A radiologist who deals with the therapeutic applications of radiant energy and its modifiers and the study and management of disease, especially malignant tumors.

600 S MEDICAL CENTER DR, St George, UT 84790

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Secondary Practice Location 1

Location 1401 W Poplar St, Radiation OncologyWalla Walla, WA 99362-2846 · Phone (509) 522-5700 ext. 2789 · Fax (509) 522-5515

Other Identifiers 2

Medicaid1063678514WA

Medicaid500636850OR

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Select Health, University of Utah Health Plans.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Dr. Spencer N Ashton 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 ID1254501885

PECOS Enrollment IDI20130617000255

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 21

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.

Ct guidance for insertion of radiation therapy fields 77014

CT guidance for insertion of radiation therapy fields involves using a CT scan to accurately map the area of your body where radiation will be applied. This ensures the radiation targets only the necessary area, minimizing impact to healthy tissues.

739 services121 patients

Stereoscopic x-ray guidance for localization of target volume for the delivery of radiation therapy G6002

Stereoscopic x-ray guidance is a technique used in radiation therapy. It involves taking multiple X-ray images from different angles to create a 3D picture of the area to be treated. This helps accurately pinpoint the exact location for radiation delivery, ensuring the therapy is as effective as possible.

411 services75 patients

Calculation of radiation therapy dose 77300

Radiation therapy dose calculation is a process to determine the exact amount of radiation needed to treat a specific area in the body. This calculation helps ensure the treatment is effective while minimizing harm to healthy tissues. It's a key part of planning your radiation therapy.

257 services90 patients

Design and construction of complex radiation treatment device 77334

The design and construction of a complex radiation treatment device is a process where a specialized instrument is created. This device targets harmful cells with high-energy rays to destroy or damage them, while minimizing impact on healthy cells. This aids in treating conditions like cancer.

249 services104 patients

Radiation treatment management, 5 treatment sessions 77427

Radiation treatment management involves a series of 5 sessions where targeted radiation is used to destroy or shrink cancer cells in your body. Each session is carefully planned to maximize effectiveness while minimizing harm to healthy tissues. You may experience side effects which will be closely monitored and managed for your comfort.

242 services116 patients

Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213

This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.

145 services98 patients

Complex radiation therapy planning 77263

Complex radiation therapy planning is a process to determine the most effective way to deliver radiation to a specific area in your body. It involves detailed imaging to map your body's structure, allowing for precise targeting of cancer cells while sparing healthy tissue.

106 services99 patients

New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more 99205

This is a first-time patient visit where a healthcare professional spends 60-74 minutes with you. It involves a comprehensive evaluation, including your medical history and current health condition. They'll also advise on preventive health measures and formulate a treatment plan if needed.

97 services97 patients

Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212

This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.

78 services66 patients

Design and construction of radiation treatment device for high precision radiation therapy 77338

A radiation treatment device is custom-made for each patient to target cancer cells with high precision. It's designed to focus radiation on the tumor, sparing healthy tissue. This process ensures effective therapy while minimizing side effects.

61 services51 patients

High precision radiation therapy planning 77301

High precision radiation therapy planning involves detailed mapping of your body to target cancer cells accurately. Advanced imaging techniques help identify the exact location of the tumor, minimizing harm to healthy tissues. This personalized approach enhances effectiveness and reduces side effects.

56 services52 patients

Obtaining data needed to develop the optimal radiation treatment, 1 treatment area 77280

This procedure involves gathering essential information to create the best radiation treatment plan for a specific area. It includes scanning the treatment area and using this data to calculate the precise dose of radiation needed to target the disease effectively, while sparing healthy tissue.

52 services45 patients

Obtaining data needed to develop the optimal radiation treatment, 3 or more treatment areas or any number of treatment areas where special treatment is involved 77290

This procedure involves collecting necessary data to plan the best radiation treatment. It may cover 3 or more areas or any area requiring special attention. Data collection includes imaging scans and tests to understand the disease's extent and to tailor a precise, effective treatment plan.

50 services49 patients

3d radiation therapy planning 77295

3D radiation therapy planning is a procedure that uses computer imaging to map out the area needing treatment. This ensures the radiation targets the disease precisely, while minimizing exposure to surrounding healthy tissues. It's a key step in preparing for effective radiation therapy.

38 services36 patients

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214

This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.

32 services30 patients

Obtaining respiratory data needed to develop the optimal radiation treatment 77293

Obtaining respiratory data is vital for optimal radiation treatment. This involves tracking your breathing patterns to ensure the precise delivery of radiation to the target area, minimizing damage to healthy tissue. It's a non-invasive process and contributes to effective treatment.

22 services22 patients

Exam of the nose and throat using an endoscope 92511

An endoscopic examination of the nose and throat is a procedure where a thin, flexible tube with a light and camera attached (endoscope) is used to view these areas in detail. It helps identify any abnormalities or issues that may be causing symptoms like difficulty swallowing, persistent cough, or nasal congestion.

19 services13 patients

Management of cranial lesion surgery using radiation over multiple sessions 77435

This procedure involves using targeted radiation to treat a lesion in the brain over several sessions. The radiation destroys the abnormal cells, helping to control or eliminate the lesion. It's a non-invasive treatment, meaning no surgical cuts are made.

18 services18 patients

Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more 99215

This service involves a follow-up appointment for existing patients, lasting between 40 to 54 minutes. During this time, your healthcare provider will assess your current health status, discuss any changes or concerns, review your treatment plan, and answer any questions you may have.

17 services17 patients

New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204

This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.

14 services14 patients

Special radiation therapy planning for delivery of external radiation 77321

Special radiation therapy planning involves mapping your body's needs for external radiation treatment. This process uses advanced imaging techniques to pinpoint the exact area requiring treatment, ensuring the radiation is delivered accurately and effectively, while minimizing exposure to healthy tissues.

13 services13 patients

Hospital Affiliations CMS Care Compare 3

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

Cedar City Hospital

Acute Care Hospitals · Cedar City, UT

4/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number460007

Location1303 North Main StreetCedar City, UT 84721 · Iron County

Emergency services Birthing friendly

St. George Regional Hospital

Acute Care Hospitals · St George, UT

5/5 CMS rating

OwnershipVoluntary non-profit - Private

CMS Certification Number460021

Location1380 East Medical Center DriveSt George, UT 84790 · Washington County

Emergency services Birthing friendly

Garfield Memorial Hospital

Critical Access Hospitals · Panguitch, UT

OwnershipVoluntary non-profit - Other

CMS Certification Number461333

Location200 North 400 EastPanguitch, UT 84759 · Garfield County

Emergency services Birthing friendly

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 84790 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

$166.03 typical visit price

range $54.34 – $166.03

Typical copayment $41.50 (range $13.58 – $41.50)

Most-billed visit code 99205

Established Patient

$68.01 typical visit price

range $17.23 – $135.20

Typical copayment $17.00 (range $4.30 – $33.80)

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.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Enteral feeding supply kit; syringe fed, per day, includes but not limited to feeding/flushing syringe, administration set tubing, dressings, tape B4034

Other-Enteral and Parenteral · category OB006N

1 supplier14 claims347 services$3.46 avg. paid by Medicare

Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 17

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

BEAU JAY KUNZLER NP-C

Nurse Practitioner (Family)

600 S MEDICAL CENTER DR
ST GEORGE, UT 84790

Washington County (435) 251-4900

DR. JULIE YUMI ODA M.D.

Internal Medicine (Hematology & Oncology)

600 S MEDICAL CENTER DR
ST GEORGE, UT 84790

Washington County (435) 251-4900

MATTHEW BOWLER LUNDIN PA-C

Physician Assistant

600 S MEDICAL CENTER DR
SAINT GEORGE, UT 84790

Washington County (435) 688-4900

NORMA SHEPHERD FNP

Nurse Practitioner

600 S MEDICAL CENTER DR
SAINT GEORGE, UT 84790

Washington County (435) 251-4900

MARICEL PURCELL FNP

Nurse Practitioner (Family)

600 S MEDICAL CENTER DR
ST GEORGE, UT 84790

Washington County (435) 414-0311

JESSICA ANN GOLDSBERRY MS, CGC

Genetic Counselor, MS

600 S MEDICAL CENTER DR
ST GEORGE, UT 84790

Washington County (435) 688-4900

COLBY CEVERING DO

Psychiatry & Neurology (Neurology)

600 S MEDICAL CENTER DR
ST GEORGE, UT 84790

Washington County (435) 251-4900

DR. BENJAMIN NEWELL VOORHIES M.D.

Internal Medicine (Medical Oncology)

600 S MEDICAL CENTER DR
ST GEORGE, UT 84790

Washington County (435) 251-4900

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 Spencer Ashton's NPI number?

The NPI number for Spencer Ashton is 1063678514. It was assigned to this individual provider in the NPPES registry on August 4, 2008.

Where is Spencer Ashton located?

Spencer Ashton practices at 600 S Medical Center Dr, St George, UT 84790. The listed phone number is (435) 688-4175.

What is Spencer Ashton's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.

Is Spencer Ashton enrolled in Medicare?

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

What insurance does Spencer Ashton accept?

Health plans from Select Health and University of Utah Health Plans list Spencer Ashton 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 Spencer Ashton affiliated with any hospitals?

According to CMS data, Spencer Ashton is affiliated with Cedar City Hospital, St. George Regional Hospital and Garfield Memorial Hospital.

When was this NPI record last updated?

The NPPES record for Spencer Ashton was last updated on April 9, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.