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Physician Assistant

Cassidy L. Peterson, PA

Works at hospitals in Rapid City, SD · South Dakota

Summary

Cassidy L. Peterson, PA is a physician assistant at 353 Fairmont Blvd, Rapid City, SD 57701. Accepts Medicare assignment. In 2024, Cassidy L. Peterson had 14 Original Medicare patients and 26 services. NPI 1356808034. 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 Cassidy L. Peterson, 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 Cassidy L. Peterson accept Medicare assignment?
Yes. Medicare's clinician data says Cassidy L. Peterson 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 Cassidy L. Peterson see?
In 2024, CMS data shows 14 Original Medicare patients and 26 services for Cassidy L. Peterson. This counts Original Medicare only and measures volume, not quality.
What is Cassidy L. Peterson's NPI number?
1356808034. 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 Cassidy L. Peterson, 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 patients14
Services billed to Medicare26
Different services or procedures10
Participating Medicare providerYes
Average age of these patients67

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%

Hospitals where Cassidy L. Peterson works

Medicare's Facility Affiliation Data lists Cassidy L. Peterson 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 Cassidy L. Peterson is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

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

  • Monument Health Rapid City Hospital Inc564 clinicians in the group

Specialties

Find other clinicians: Physician Assistant, South Dakota →

Other physician assistants in Rapid City

Clinicians with the same Medicare primary specialty in Rapid City, SD — not a recommendation.

All physician assistants in Rapid City →

Other clinicians in Monument Health Rapid City Hospital Inc

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

Clinician information

CredentialPA
Graduation year2018
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1356808034
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