Physician Profile
Marion Edwyn Harrison, M.D.
Unclaimed ProfileAbout Dr. Harrison
Marion Edwyn Harrison, M.D. is a healthcare provider in Scottsdale, AZ specializing in gastroenterology. Marion trained at University of Virginia School of Medicine, graduating in 1985. Medicare claims data shows Marion provided 469 services to 469 patients.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
Source: NPPES NPI Registry
Contact Information
- (480) 301-8000
- Email not available
Practice Locations
13400 E SHEA BLVD
Scottsdale, AZ 85259
Conditions Commonly Evaluated or Treated
Within Gastroenterology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
- Acid reflux
- Celiac disease
- Crohn's disease
- Hemorrhoids
- IBS
- Swallowing difficulties
- Ulcerative colitis
Procedures & services
Most searched procedures
Procedures Most Often Billed to Medicare
469 services · 469 patients · 8 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
108 |
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Procedure | 45385 |
41 |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
32 |
| Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43235 |
18 |
| Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monit | Billing code | G0500 |
203 |
| Colorectal cancer screening; colonoscopy on individual at high risk | Billing code | G0105 |
34 |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
21 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
12 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Related specialists at this location 4
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other gastroenterology specialists in Scottsdale 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at University of Virginia School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1985 at University of Virginia School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Biopsy of large bowel using a flexible endoscope 8
Providers in AZ who bill this service to Medicare most often.
Common questions
What does Dr. Harrison specialize in?
Dr. Harrison is a gastroenterology in Scottsdale, AZ. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “GASTROENTEROLOGY”.
NPI registry
Where is Dr. Harrison located?
Dr. Harrison is listed at 13400 E SHEA BLVD, Scottsdale, AZ 85259. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Harrison's phone number?
The number on file is (480) 301-8000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Harrison?
Dr. Harrison's National Provider Identifier is 1801873633. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Harrison go to medical school?
Dr. Harrison attended University of Virginia School of Medicine, graduating in 1985. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Harrison have?
Dr. Harrison has 41 years experience. Calculated from a graduation year of 1985, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Harrison do most often?
According to Medicare billing data, Dr. Harrison performs procedures including biopsy of large bowel using a flexible endoscope, removal of polyps or growths of large bowel using an endoscope with mechanical snare and biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Harrison's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Harrison. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.