Dr. Spencer N. Ashton
Dr. Spencer N. Ashton
Last updated: Apr 9, 2026

Dr. Spencer N. Ashton

  • Gender: Male
  • Experience: 15 years
  • Graduated from: University Of Virginia School Of Medicine
  • Graduation year: 2006
  • Sole propriator: No
  • NPI: 1063678514

Dr. Spencer N. Ashton M.D

Radiation Oncologist

He is located at 600 South Medical Center Drive in St George, UT 84790. Can help patients with the following: Acoustic Neuroma, Breast Cancer, Colon Cancer, Oral Cancer, Salivary Gland Cancer, Vaginal Cancer. His National Provider Identifier (NPI) number is 1063678514. Appointment can be made via the phone number (435) 688-4175. He also has a website where you can get more information. The website can be found at https://intermountainhealthcare.org/find-a-doctor/a/ashton-spencer-n/. He is affiliated with 2 hospitals.

Conditions treated

Dr. Spencer N. Ashton, being an radiation oncologist, treats the following conditions. Please be advised that this list may not be complete. For the full list of conditions treated, consult directly with Dr. Spencer N. Ashton.

  • Acoustic Neuroma
  • Anal Cancer
  • Basal Cell Carcinoma
  • Bile Duct Cancer
  • Bladder Cancer
  • Bone Cancer
  • Brain Cancer
  • Breast Cancer
  • Cancer
  • Carcinoid Tumor
  • Carcinoma
  • Cervical Cancer
  • Colon Cancer
  • Cushing's Syndrome
  • Esophageal Cancer
  • Gallbladder Cancer
  • Glioma
  • Head and Neck Cancer
  • Hodgkin's Disease
  • Kidney Cancer
  • Larynx Cancer
  • Leukemia
  • Liver Cancer
  • Lung Cancer
  • Melanoma
  • Mesothelioma
  • Nasopharyngeal Cancer
  • Neoplasm
  • Neuroblastoma
  • Non-Hodgkin's Lymphoma (NHL)
  • Oral Cancer
  • Ovarian Cancer
  • Pancreatic Cancer
  • Penis Cancer
  • Pheochromocytoma (PCC)
  • Polycythemia
  • Prostate Cancer
  • Retinoblastoma
  • Salivary Gland Cancer
  • Sarcoma
  • Skin Cancer
  • Stomach Cancer
  • Testicular Cancer
  • Thymoma
  • Thyroid Cancer
  • Urethral Cancer
  • Uterine Cancer
  • Vaginal Cancer

Procedures Performed by Dr. Spencer N. Ashton

ACA Marketplace (Obamacare/HealthCare.gov) plan networks

Insurers selling ACA Marketplace (HealthCare.gov) plans list Dr. Spencer N. Ashton as in-network for the following 2026 plans.

Health plans

Select Health

Network data as of Sep 15, 2026, as reported by the insurer.

Show all 21 plans from Select Health
Select Health plans
Plan Plan type Network tier New patients
Med Benchmark Expanded Bronze Select Copay Plan HMO · Expanded Bronze Preferred Accepting new patients
Med Benchmark Expanded Bronze Standardized Plan HMO · Expanded Bronze Preferred Accepting new patients
Med Benchmark Gold Standardized Plan HMO · Gold Preferred Accepting new patients
Med Benchmark Platinum HMO · Platinum Preferred Accepting new patients
Med Benchmark Platinum Standardized Plan HMO · Platinum Preferred Accepting new patients
Med Benchmark Silver 6000 Medical Deductible w/Vision HMO · Silver Preferred Accepting new patients
Med Benchmark Silver Standardized Plan HMO · Silver Preferred Accepting new patients
Med Gold 1500 Medical Deductible HMO · Gold Preferred Accepting new patients
Signature Benchmark Gold HMO · Gold Preferred Accepting new patients
Signature Benchmark Gold Standardized Plan HMO · Gold Preferred Accepting new patients
Signature Benchmark Silver 5900 Medical Deductible HMO · Silver Preferred Accepting new patients
Signature Benchmark Silver Standardized Plan HMO · Silver Preferred Accepting new patients
Value Benchmark Expanded Bronze Select Copay Plan HMO · Expanded Bronze Preferred Accepting new patients
Value Benchmark Gold Standardized Plan HMO · Gold Preferred Accepting new patients
Value Benchmark Platinum HMO · Platinum Preferred Accepting new patients
Value Benchmark Platinum Standardized Plan HMO · Platinum Preferred Accepting new patients
Value Benchmark Silver 5900 Medical Deductible HMO · Silver Preferred Accepting new patients
Value Benchmark Silver Standardized Plan HMO · Silver Preferred Accepting new patients
Value Expanded Bronze 6900 Medical Deductible HMO · Expanded Bronze Preferred Accepting new patients
Value Gold 1500 Medical Deductible HMO · Gold Preferred Accepting new patients
Value Silver 3000 Medical Deductible HMO · Silver Preferred Accepting new patients

University of Utah Health Plans

Network data as of Sep 14, 2026, as reported by the insurer.

Show all 6 plans from University of Utah Health Plans
University of Utah Health Plans plans
Plan Plan type Network tier New patients
Healthy Premier Bronze HSA EPO · Expanded Bronze Preferred Accepting new patients
Healthy Premier Expanded Bronze Standard EPO · Expanded Bronze Preferred Accepting new patients
Healthy Premier Gold Copay Office Visits EPO · Gold Preferred Accepting new patients
Healthy Premier Gold Standard EPO · Gold Preferred Accepting new patients
Healthy Premier Silver Copay Office Visits EPO · Silver Preferred Accepting new patients
Healthy Premier Silver Standard EPO · Silver Preferred Accepting new patients

This covers ACA Marketplace plans only, as reported by each insurer. It does not include employer, Medicare Advantage, or state-run exchange plans, and a plan missing from this list does not mean Dr. Spencer N. Ashton is out of network. Insurer directories can be out of date, so always confirm with the insurer and the office before your visit.

Insurance information looks wrong? Let us know

Medicare Enrollment

Dr. Spencer N. Ashton is enrolled to bill Medicare as a Practitioner - Radiation Oncology .

Bills through: Ihc Health Services Inc

Based on Medicare's public enrollment records as of Jul 17, 2026. This reflects Medicare fee-for-service enrollment only and says nothing about other insurance, quality, outcomes, or board certification.

Payments received

Drug payment

Varian Medical Systems $124
Janssen $23
Bayer $16

Other

Food and Beverage $192

Studies

UNIVERSITY OF VIRGINIA SCHOOL OF MEDICINE

Graduated in 2006

Other ways to reach out

  • Website: https://intermountainhealthcare.org/find-a-doctor/a/ashton-spencer-n/

Additional Specialities

  • Oncologist

Affiliated hospitals

CEDAR CITY HOSPITAL
1303 NORTH MAIN STREET
CEDAR CITY, 84721 UT
(435) 868-5800
DIXIE REGIONAL MEDICAL CENTER
1380 EAST MEDICAL CENTER DRIVE
ST GEORGE, 84790 UT
(435) 251-2100

Looking for more Radiation Oncologists?

Here are radiation oncologists in Utah you may want to explore.

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Dr. Ada Jennifer Fischbach
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Dr. Gita Suneja
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Dr. Matthew M. Poppe
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Dr. David K. Gaffney
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Dr. Joshua Gruhl
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Dr. Robert Jeffrey Lee
  • Gender: Male
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Dr. Jonathan Frandsen
  • Gender: Male
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Dr. Amy Amalia Strowbridge
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Dr. Robert Alan Harris
  • Gender: Male
  • Address: Suite B101 2132 North Robins Drive Layton, 84041, UT

Questions & Answers

Where can you meet with Dr. Spencer N. Ashton?

Dr. Spencer N. Ashton's office is located at 600 South Medical Center Drive in St George, UT 84790.

What conditions does Dr. Spencer N. Ashton treat?

Dr. Spencer N. Ashton provides treatment for Acoustic Neuroma, Breast Cancer, Colon Cancer, Oral Cancer, Salivary Gland Cancer, Vaginal Cancer. For the full list see this list.

Has Dr. Spencer N. Ashton affiliation with hospitals?

Dr. Spencer N. Ashton is affiliated with CEDAR CITY HOSPITAL. For the full list of hospitals see this list.

Does Dr. Spencer N. Ashton accept insurance?

Dr. Spencer N. Ashton is listed in-network for 27 ACA Marketplace (Obamacare/HealthCare.gov) plans from Select Health, University of Utah Health Plans. See the Marketplace plans section for details.