Dr. David M. Chascsa, MD
Gastroenterology (Gastroenterology Physician)
13400 E Shea Blvd
Scottsdale, AZ 85259
Who else practices at this address →
Maricopa County includes primary care (13% of residents) and dental (0% of residents) and mental health (4% of residents) shortage areas. About shortage areas
- Medicare participating
At a glance
- Medical school
- Georgetown University School of Medicine (2010)
- Years since graduation
- 16
- In the NPI registry since
- 2010
- Medicare patients seen, 2024
- 237
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. What an NPI is
Education and training
- 2010Medical school: Georgetown University School of Medicine
- 2010Registered with an NPI (national billing number; not a license date)
Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Gastroenterology Physician primary
MN license 70993 · AZ license 51694
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Mayo Clinic Hospital Phoenix, AZ
Medical groups
- Mayo Clinic Arizona (1,626 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 237
- Services billed
- 424
- Patients’ average age
- 70
| Service | Times | Patients |
|---|---|---|
| Measurement of liver stiffness | 72 | 72 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 65 | 25 |
| Established patient office or other outpatient visit, 30-39 minutes | 51 | 45 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 46 | 16 |
| Established patient office or other outpatient visit, 40-54 minutes | 36 | 34 |
| Biopsy of large bowel using a flexible endoscope | 28 | 28 |
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 26 | 26 |
| Hospital discharge day management, 30 minutes or less | 17 | 17 |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 16 | 16 |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 13 | 13 |
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.
Medicare prescriptions
| Drug | Prescriptions |
|---|---|
| Fluconazole Other prescribers in Scottsdale, AZ | 77 |
| Tacrolimus Other prescribers in Scottsdale, AZ | 69 |
| Pantoprazole Sodium Other prescribers in Scottsdale, AZ | 51 |
| Ursodiol Other prescribers in Scottsdale, AZ | 37 |
| Carvedilol Other prescribers in Scottsdale, AZ | 23 |
| Furosemide Other prescribers in Scottsdale, AZ | 21 |
| Xifaxan (rifaximin) Other prescribers in Scottsdale, AZ | 21 |
| Sulfamethoxazole-Trimethoprim (sulfamethoxazole/trimethoprim) Other prescribers in Scottsdale, AZ | 18 |
| Prednisone Other prescribers in Scottsdale, AZ | 18 |
| Sucralfate Other prescribers in Scottsdale, AZ | 14 |
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.
Payments from drug and device companies
In 2025, 1 companies reported 1 payments worth $32.27 in total to this clinician.
| Novo Nordisk Inc | $32.27 |
|---|
| Education | $32.27 |
|---|
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Novo Nordisk Inc Mar 19, 2025 | Education in-kind | $32.27 |
Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.