Dr. Nathaniel A. Reyes, M.D.
Pulmonology (Pulmonary Disease Physician)
5301 E Grant Rd
Tucson, AZ 85712
Who else practices at this address →
Pima County includes primary care (34% of residents) and dental (4% of residents) and mental health (14% of residents) shortage areas. About shortage areas
- Medicare participating
At a glance
- Medical school
- New York University School of Medicine (2008)
- Years since graduation
- 18
- In the NPI registry since
- 2008
- Medicare patients seen, 2024
- 190
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
- 2008Medical school: New York University School of Medicine
- 2008Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
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
-
Pulmonary Disease Physician primary
AZ license 47672 -
Critical Care Medicine (Internal Medicine) Physician
AZ license 47672 -
Internal Medicine Physician
AZ license 47672
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Tucson Medical Center Tucson, AZ
- Benson Hospital Benson, AZ
Medical groups
- Tmc Medical Network (281 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
- 190
- Services billed
- 479
- Patients’ average age
- 75
| Service | Times | Patients |
|---|---|---|
| Critical care, first 30-74 minutes | 271 | 130 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 82 | 53 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 31 | 25 |
| Hospital discharge day management, 30 minutes or less | 13 | 13 |
| Insertion of artery tube for blood sampling or infusion through skin | 13 | 13 |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 13 | 13 |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 11 | 11 |
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.
Payments from drug and device companies
In 2025, 9 companies reported 16 payments worth $291 in total to this clinician.
| Merck Sharp & Dohme LLC | $47.42 |
|---|---|
| Regeneron Healthcare Solutions, Inc. | $42.71 |
| Electromed, Inc. | $41.43 |
| GlaxoSmithKline, LLC. | $36.30 |
| Verona Pharma, Inc. | $33.63 |
| AstraZeneca Pharmaceuticals LP | $28.93 |
| Inspire Medical Systems, Inc. | $22.82 |
| Baxter Healthcare | $21.57 |
| Food and Beverage | $291 |
|---|
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.