Marion Edwyn Harrison, M.D.
Gastroenterology Internal Medicine
Marion Edwyn Harrison is a Gastroenterology Internal Medicine specialist based in Scottsdale, AZ with over 41 years of clinical experience. Medicare-enrolled per CMS records and offers virtual telehealth visits.
Also practices: INTERNAL MEDICINE
Marion Edwyn Harrison, M.D. has been part of the Scottsdale medical community since 2005 in group practice. He graduated from University of Virginia School of Medicine in 1985 and has 41+ years of clinical experience. Among his Medicare patients, common conditions include high cholesterol and hypertension (per CMS data). CMS MIPS quality score: 78.59/100 (2023).
At a glance
- Federal MIPS score higher than 29% of MIPS-scored doctors in Arizona
- Virtual visits available — no app or travel required
Older · 1257dNPPES updated 2023-03-07 · verify NPI on CMS · Verify license at Arizona Medical Board
How Does This Doctor Compare?
MIPS Score
202378.59/100
Arizona avg: 77.5 · US avg: 83.6
⚠ Lower than most doctors nationally(-5 pts)
How the government rates this doctor's Medicare care quality. Scores above 75 are considered good.
Medicare Patients
146
Unique beneficiaries
Standard volumePercentile rankings compared against 1,247 reporting peers in Arizona.
Data Note: Sourced from CMS Medicare Provider Utilization & Payment Data. Percentile rankings compare this provider against all peers with reported data in the same state. Updated annually to reflect the latest federal reporting cycle.
What This Doctor Treats Most
Based on Medicare claims data — here's what patients commonly see this doctor for
Based on Medicare data, this doctor primarily manages High Cholesterol, Hypertension, and Arthritis.
Elevated cholesterol or triglycerides that increase heart disease risk
US avg: 70.4%↑ More patients than average (+3%) — a focus area for this doctor
High blood pressure — a leading risk factor for heart disease and stroke
US avg: 70.2%↓ Fewer patients than average (-21%) — less common here
Joint inflammation causing pain, swelling, and stiffness
US avg: 49.3%↓ Fewer patients than average (-21%) — less common here
A condition where the body cannot properly regulate blood sugar levels
US avg: 34.5%↓ Fewer patients than average (-14%) — less common here
Gradual loss of kidney function over time, often linked to diabetes or hypertension
US avg: 29.6%↓ Fewer patients than average (-10%) — less common here
Percentage of this provider's Medicare patients diagnosed with each condition. Source: CMS Utilization Data.
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Background & Specialty
Education, training, and specialty classification from CMS NPPES and Medicare records.
Graduated medical school · 1985
University of Virginia School of Medicine
Board certified · Mar 6, 2023
Self-reported via NPPES
41 years in practice
Senior practitioner
Gastroenterologists diagnose and treat digestive system disorders including GERD, irritable bowel syndrome (IBS), inflammatory bowel disease (Crohn's, ulcerative colitis), liver disease, pancreatitis, and colon polyps. They perform endoscopies and colonoscopies.
Taxonomy: 207RG0100X
Education & Training
University of Virginia School of Medicine (Class of 1985)
Primary hospital affiliation: Acute Care Hospitals
CMS Certification Number: 100068
View hospital on Medicare Care CompareVirtual Internal Medicine Care With Marion Edwyn Harrison
NPPES records indicate this provider offers telehealth services. Contact the office to confirm availability and scheduling.
Schedule a virtual visit with Marion Edwyn Harrison for cholesterol management, blood pressure monitoring, arthritis follow-ups — no travel to Scottsdale required. The office sends a secure video link before your appointment. Most visits take 15–30 minutes. Medicare enrolled per CMS records.
Frequently Asked Questions
Common questions about Marion Edwyn Harrison
Dr. Harrison is listed as active in the NPI registry with telehealth listed in Scottsdale, AZ. NPI status alone doesn't confirm open availability — call the office to confirm. Phone: (480) 301-8000.
Sourced from CMS NPPES · OIG LEIE · CMS QPP 2023 · CMS Physician Comparator. See Data Methodology.
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Contact Marion Edwyn Harrison
Practice Location
13400 E Shea Blvd, Scottsdale, AZ 85259-5404
Mailing Address
13400 E Shea Blvd, Scottsdale, AZ 85259-5404
This is a provider directory. Contact the office directly to schedule appointments.
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