Quick answers
- Does Juan A. Cattoni Iii accept Medicare assignment?
- Yes. Medicare's clinician data says Juan A. Cattoni Iii accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Juan A. Cattoni Iii see?
- In 2024, CMS data shows 759 Original Medicare patients and 163,463 services for Juan A. Cattoni Iii. This counts Original Medicare only and measures volume, not quality.
- What is Juan A. Cattoni Iii's NPI number?
- 1881906121. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Juan A. Cattoni Iii, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 759 |
|---|---|
| Services billed to Medicare | 163,463 |
| Different services or procedures | 153 |
| Participating Medicare provider | Yes |
| Average age of these patients | 75 |
Most frequent services
- Injection, oxaliplatin, 0.5 mg (J9263)16,976 services
- Injection, pembrolizumab, 1 mg (J9271)16,200 services
- Injection, ferric carboxymaltose, 1 mg (J1439)9,750 services
- Injection, daratumumab, 10 mg and hyaluronidase-fihj (J9144)9,360 services
- Injection, aprepitant, 1 mg (J0185)5,850 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol72%
- High blood pressure71%
- Cancer (breast, colorectal, lung, prostate, endometrial or leukemia/lymphoma)48%
- Arthritis41%
- Chronic kidney disease30%
- Ischemic heart disease29%
Hospitals where Juan A. Cattoni Iii works
Medicare's Facility Affiliation Data lists Juan A. Cattoni Iii at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Carson Valley HealthGardnerville, NV · Critical Access Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 291306
- Humboldt General HospitalWinnemucca, NV · Critical Access Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 291308
- Northern Nevada Medical CenterSparks, NV · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 290032
- Renown Regional Medical CenterReno, NV · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 290001
- Renown South Meadows Medical CenterReno, NV · Acute Care Hospital · Medicare rating: 3 of 5 stars · Emergency services: listed by Medicare · CCN 290049
Practice locations
Addresses where Juan A. Cattoni Iii is enrolled with Medicare (CMS data updated October 2, 2026).
- 235 W 6th StReno, NV 89503 (775) 329‑0873
- 2375 E Prater WaySparks, NV 89434 (775) 329‑0873
- 5423 Reno Corporate DrReno, NV 89511 (775) 329‑0873
- 5470 Reno Corporate DrReno, NV 89511 (775) 329‑0873
- 625 Innovation DrReno, NV 89511 (775) 329‑0873
Group practices
Medicare enrollment lists Juan A. Cattoni Iii as a member of this group (CMS data updated October 2, 2026).
- John a Shields MD and Steven a Schiff MD a Professional Corporation20 clinicians in the group
Specialties
- Hematology/Oncologyprimary
Other hematologist-oncologists in Reno
Clinicians with the same Medicare primary specialty in Reno, NV — not a recommendation.
Other clinicians in John a Shields MD and Steven a Schiff MD a Professional Corporation
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2008 (18 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1881906121 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians