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ERIC S CASSIDY MD
NPI 1982647830
Emergency Medicine in Twin Falls, ID

Active since June 14, 2006PECOS Enrolled
78.85/100
CMS Quality Rating
650 ADDISON AVE W, TWIN FALLS, ID 83301(208) 732-3429(208) 732-3220 Get Directions Write a Review

NPPES record last updated: July 13, 2026. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Eric S Cassidy Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ERIC S CASSIDY MD (NPI 1982647830) is an individual emergency medicine provider in Twin Falls, Idaho, licensed in Idaho (O-235) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1982647830
Entity TypeIndividualMale
Primary Taxonomy207P00000X
Provider Legal NameERIC S CASSIDYCredential: MD
Location Address650 ADDISON AVE WTwin Falls, ID 83301-5444
Mailing AddressPo Box 409Twin Falls, ID 83303-0409 · (208) 732-3429 · Fax (208) 732-3220
Phone(208) 732-3429
Fax(208) 732-3220
Sole ProprietorNo
Enumeration DateJune 14, 2006
Last NPPES UpdateJuly 13, 2026
✔ NPI 1982647830 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyEmergency MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207P00000X
License✔ Licensed in ID · O-235
Definition
An emergency physician focuses on the immediate decision making and action necessary to prevent death or any further disability both in the pre-hospital setting by directing emergency medical technicians and in the emergency department. The emergency physician provides immediate recognition, evaluation, care, stabilization and disposition of a generally diversified population of adult and pediatric patients in response to acute illness and injury.
650 ADDISON AVE W, Twin Falls, ID 83301
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Moda Health Plan, Inc..Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Eric S Cassidy Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Eric Cassidy reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

St Luke's Clinic LLC
2.4 mi
Family Medicine
775 POLE LINE RD W
Twin Falls, ID 83301
  • Reassigned Medicare billing, Idaho enrollment
  • Medicare enrollment name: St Lukes Clinic LLC
  • 322 clinicians in this Medicare group
NPI 1790718229 (208) 814-1000

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims 3

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Emergency department visit with high level of medical decision making 99285
An emergency department visit for severe conditions is when you urgently seek medical help due to serious health issues. These could be severe injuries, breathing problems, unbearable pain, or sudden severe illness. Doctors and nurses will provide immediate care to stabilize your condition.
298 services285 patients
Critical care, first 30-74 minutes 99291
Critical care involves immediate and constant attention by a team of specially-trained health professionals. It's for patients with life-threatening conditions, requiring first 30-74 minutes of intense monitoring and treatment.
56 services55 patients
Emergency department visit with moderate level of medical decision making 99284
An emergency department visit for a high-severity issue means you're experiencing a serious health problem that needs immediate attention. This could be a severe injury, serious illness, or life-threatening condition. Medical professionals will provide urgent care to stabilize your condition.
54 services54 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 83301 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$81.13 typical visit price
range $52.44 – $160.17
Typical copayment $20.28 (range $13.11 – $40.04)
Most-billed visit code 99203
Established Patient
$93.26 typical visit price
range $16.68 – $130.93
Typical copayment $23.31 (range $4.17 – $32.73)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

78.85/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored as part of a group practice
Quality81.58
Promoting Interoperability100
Improvement Activities40
Cost47.94

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

SURGICAL ASSOCIATES OF SOUTHERN ID
Physician Assistant (Surgical)
650 ADDISON AVE W
TWIN FALLS, ID 83301
Twin Falls County (208) 737-2112
CHARLES SPENCER HANSEN PT
Physical Therapist
650 ADDISON AVE W
TWIN FALLS, ID 83301
Twin Falls County (208) 737-2000
NICHOLAS J PERIUS PA
Physician Assistant
650 ADDISON AVE W
TWIN FALLS, ID 83301
Twin Falls County (208) 732-3429
CHAD F COLVIN D.O.
Emergency Medicine
650 ADDISON AVE W
TWIN FALLS, ID 83301
Twin Falls County (208) 732-3429
MAGIC VALLEY REGIONAL MEDICAL CENTER
General Acute Care Hospital
650 ADDISON AVE W
TWIN FALLS, ID 83301
Twin Falls County (208) 737-2112
ELVA M MCNURLIN
Dietitian, Registered
650 ADDISON AVE W
TWIN FALLS, ID 83301
Twin Falls County (208) 732-3429
DR. DANIEL CONSTANTINE ALDER M.D.
Radiology (Diagnostic Radiology)
650 ADDISON AVE W, RADIOLOGY DEPARTMENT
TWIN FALLS, ID 83301
Twin Falls County (208) 737-2192
PHILIP M NELSON MD
Emergency Medicine
650 ADDISON AVE W
TWIN FALLS, ID 83301
Twin Falls County (208) 732-3429

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Eric Cassidy's NPI number?

The NPI number for Eric Cassidy is 1982647830. It was assigned to this individual provider in the NPPES registry on June 14, 2006.

Where is Eric Cassidy located?

Eric Cassidy practices at 650 Addison Ave W, Twin Falls, ID 83301. The listed phone number is (208) 732-3429.

What is Eric Cassidy's specialty?

The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.

Is Eric Cassidy enrolled in Medicare?

Yes. Eric Cassidy is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Eric Cassidy's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Eric Cassidy reassigns Medicare benefits to St Luke's Clinic LLC (Twin Falls, ID). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Eric Cassidy's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Eric Cassidy accept?

Health plans from Moda Health Plan, Inc. list Eric Cassidy as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Eric Cassidy was last updated on July 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.