Dr. Ann Thomas, MD
Nephrology (Kidney) (Nephrology Physician)
8415 N Pima Rd, Ste 150
Scottsdale, AZ 85258
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
- Years since graduation
- 37
- In the NPI registry since
- 2006
- Medicare patients seen, 2024
- 833
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. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is
Education and training
- 2006Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
Medicare’s Care Compare data doesn’t list this clinician’s medical school. 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
-
Nephrology Physician primary
AZ license 27537
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
- Honorhealth Scottsdale Shea Medical Center Scottsdale, AZ
- Honorhealth Scottsdale Osborn Medical Center Scottsdale, AZ
- Honorhealth Scottsdale Thompson Peak Med Ctr Scottsdale, AZ
Medical groups
- Akdhc LLC (129 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
- 833
- Services billed
- 5,493
- Patients’ average age
- 78
| Service | Times | Patients |
|---|---|---|
| Injection, epoetin alfa, (for non-esrd use), 1000 units | 3,510 | 37 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 897 | 294 |
| Established patient office or other outpatient visit, 30-39 minutes | 518 | 337 |
| Established patient office or other outpatient visit, 40-54 minutes | 401 | 169 |
| Dialysis services, per day, less than full month service (20 years or older) | 362 | 16 |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 165 | 154 |
| Dialysis services, 4 or more physician visits per month (20 years or older) | 150 | 24 |
| Injection of drug or substance under skin or into muscle | 82 | 37 |
| New patient office or other outpatient visit, 60-74 minutes | 76 | 76 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 62 | 34 |
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 |
|---|---|
| Allopurinol Other prescribers in Scottsdale, AZ | 240 |
| Calcitriol Other prescribers in Scottsdale, AZ | 216 |
| Furosemide Other prescribers in Scottsdale, AZ | 135 |
| Hydralazine Hcl Other prescribers in Scottsdale, AZ | 88 |
| Losartan Potassium Other prescribers in Scottsdale, AZ | 52 |
| Spironolactone Other prescribers in Scottsdale, AZ | 44 |
| Veltassa (patiromer calcium sorbitex) | 41 |
| Lisinopril Other prescribers in Scottsdale, AZ | 41 |
| Torsemide Other prescribers in Scottsdale, AZ | 34 |
| Amlodipine Besylate Other prescribers in Scottsdale, AZ | 33 |
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, 18 companies reported 79 payments worth $1,627 in total to this clinician.
| Amgen Inc. | $289 |
|---|---|
| Otsuka America Pharmaceutical, Inc. | $246 |
| Novartis Pharmaceuticals Corporation | $231 |
| Novo Nordisk Inc | $179 |
| Mallinckrodt Hospital Products Inc. | $101 |
| AstraZeneca Pharmaceuticals LP | $98.81 |
| Calliditas Therapeutics US Inc. | $68.69 |
| Boehringer Ingelheim Pharmaceuticals, Inc. | $66.06 |
| Food and Beverage | $1,624 |
|---|---|
| Education | $3.32 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Travere Therapeutics, Inc. May 14, 2025 | Education Filspari · Kidney Disease · in-kind | $1.66 |
| Travere Therapeutics, Inc. Aug 21, 2025 | Education Filspari · Kidney Disease · in-kind | $1.66 |
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.