Medical emergency?Emergency? Call 911. Nearest emergency roomsNearest ERs

Nurse Practitioner

Rhyan L. Tosti, NP

Works at hospitals in Phoenix, AZ · Arizona

Summary

Rhyan L. Tosti, NP is a nurse practitioner at 3420 S Mercy Rd, 312 Dhmg Cardiology Mercy Gilbert, Gilbert, AZ 85297. Phone: (480) 728-6400. Accepts Medicare assignment. In 2024, Rhyan L. Tosti had 94 Original Medicare patients and 153 services. NPI 1497504005. Source: CMS National Downloadable File, updated October 2, 2026; CMS Facility Affiliation Data, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

From official Medicare data

This page shows what Medicare's official clinician data says about Rhyan L. Tosti, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Rhyan L. Tosti accept Medicare assignment?
Yes. Medicare's clinician data says Rhyan L. Tosti 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 Rhyan L. Tosti see?
In 2024, CMS data shows 94 Original Medicare patients and 153 services for Rhyan L. Tosti. This counts Original Medicare only and measures volume, not quality.
What is Rhyan L. Tosti's NPI number?
1497504005. 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 Rhyan L. Tosti, 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 patients94
Services billed to Medicare153
Different services or procedures10
Participating Medicare providerYes
Average age of these patients73

Most frequent services

  1. Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)96 services
  2. Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report (93000)25 services
  3. Exercise or drug-induced heart stress test with electrocardiogram (ecg) with supervision by physician (93016)12 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 blood pressure75%
  • High cholesterol75%
  • Ischemic heart disease68%
  • Arthritis53%
  • Anxiety26%
  • Osteoporosis26%

Hospitals where Rhyan L. Tosti works

Medicare's Facility Affiliation Data lists Rhyan L. Tosti 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.

Practice locations

Addresses where Rhyan L. Tosti is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Rhyan L. Tosti as a member of this group (CMS data updated October 2, 2026).

  • SJHMC Physician Services646 clinicians in the group

Specialties

Find other clinicians: Nurse Practitioner, Arizona →

Other nurse practitioners in Gilbert

Clinicians with the same Medicare primary specialty in Gilbert, AZ — not a recommendation.

All nurse practitioners in Gilbert →

Other clinicians in SJHMC Physician Services

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialNP
Graduation year2024
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
TelehealthOffers telehealth services
NPI (National Provider Identifier)1497504005
CorrectionsReport 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

  1. Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
  2. Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
  3. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  4. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  5. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  6. Medicare Care Compare — official Medicare tool to look up clinicians