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Family Practice

Marc V. Farnworth, MD

Works at hospitals in Burley, ID · Pocatello, ID · Boise, ID … · Idaho

Summary

Dr. Marc V. Farnworth, MD is a family doctor at 746 N College Rd, Twin Falls, ID 83301. Accepts Medicare assignment. In 2024, Marc V. Farnworth had 304 Original Medicare patients and 1,030 services. NPI 1124288758. 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 Marc V. Farnworth, 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 Marc V. Farnworth accept Medicare assignment?
Yes. Medicare's clinician data says Marc V. Farnworth 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 Marc V. Farnworth see?
In 2024, CMS data shows 304 Original Medicare patients and 1,030 services for Marc V. Farnworth. This counts Original Medicare only and measures volume, not quality.
What is Marc V. Farnworth's NPI number?
1124288758. 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 Marc V. Farnworth, 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 patients304
Services billed to Medicare1,030
Different services or procedures11
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes (99232)675 services
  2. Hospital discharge day management, more than 30 minutes (99239)88 services
  3. Hospital discharge day management, 30 minutes or less (99238)73 services
  4. Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes (99222)70 services
  5. Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes (99231)68 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 cholesterol67%
  • Arthritis58%
  • Depression46%
  • Diabetes45%
  • Chronic kidney disease43%

Hospitals where Marc V. Farnworth works

Medicare's Facility Affiliation Data lists Marc V. Farnworth 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 Marc V. Farnworth is enrolled with Medicare (CMS data updated October 2, 2026).

  • 746 N College RdTwin Falls, ID 83301
  • 775 Pole Line Rd WTwin Falls, ID 83301
  • 801 Pole Line Rd WTwin Falls, ID 83301

Group practices

Medicare enrollment lists Marc V. Farnworth as a member of this group (CMS data updated October 2, 2026).

  • St Lukes Clinic LLC316 clinicians in the group

Specialties

Find other Family Practice doctors in Idaho →

Other family doctors in Twin Falls

Clinicians with the same Medicare primary specialty in Twin Falls, ID — not a recommendation.

All family doctors in Twin Falls →

Other clinicians in St Lukes Clinic LLC

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

Clinician information

CredentialMD
Medical schoolUniversity Of Michigan Medical School
Graduation year2008 (18 years since medical school)
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1124288758
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