Marc Van Farnworth, MD
Family Medicine Physician · Twin Falls, ID
Marc Van Farnworth, MD is a family medicine physician with a practice address in Twin Falls, Idaho, and NPI 1124288758, issued on Jun 17, 2008. Check the license (Idaho M-10859, as entered in NPPES) on the Idaho Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Marc Van Farnworth
- Credential
- MD
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- M-10859 ID
Self-reported in NPPES; status is on the state search - Practice location
- 801 Pole Line RD W, Twin Falls, ID 83301
- Phone
- (208) 814-4100
- Enumerated
- Jun 17, 2008
- Record last updated
- Jun 4, 2025
- Fax
- (208) 814-4908
- Medicare enrollment
- Enrolled (PECOS I20110816000333); accepts Medicare assignment
- Medical or professional school
- University Of Michigan Medical School, 2008
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 1,316 in Idaho → Look up another NPI →
Also registered at 801 Pole Line RD W
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Sacora Abshire, OTR/LOccupational Therapist1457860975
- Jessica Adamson, MSN, APRN, FNP-CFamily Nurse Practitioner1174240139
- David Allen, MDObstetrics & Gynecology Physician1225045693
- Jaylene AllenEmergency Registered Nurse1447170824
- Kimberlee Almon, M.S., CFY-SLPSpeech-Language Pathologist1164869558
- Katherine Alper, MS, RDN, LDRegistered Dietitian1487309605
Verify Marc Van Farnworth in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIdaho Board of Medicine
Search for license M-10859Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
90% fewer Medicare Part D claims than the average family medicine physician in 2024
365 Medicare Part D claims for 127 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. 14 claims were for opioids.
Most prescribed
- Cefdinir17 claims
- Atorvastatin Calcium15 claims
- Amoxicillin-Clavulanate Potass13 claims
- Potassium Chloride13 claims
- Carvedilol12 claims
- Pantoprazole Sodium12 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- St Lukes Clinic LLCTwin Falls, ID
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marc Van Farnworth among 1,316 family medicine physician records in Idaho
Marc Van Farnworth, MD is one of 1,316 family medicine physician records with a practice address in Idaho. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 49% of them.
- NPI issued2008 · 49% of these records are older, 49% newer
- In a Medicare fileYes · 78% of these records are
- In the CMS Doctors and Clinicians fileYes · 60% of these records are
- Graduated2008 · median 2009 among the 793 with a school on file
- Record last updated2025 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207Q00000X and a Idaho practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
46 family medicine physician records list a practice address in Twin Falls
They are 46 of the 1,660 NPPES records with a practice address in Twin Falls, and 1,316 family medicine physician records in Idaho.
All 1,316 in Idaho → Every provider in Twin Falls → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Cathy Canty, M.D.Twin Falls, ID 833011013974658
- Mary Curtis, M.D.Twin Falls, ID 833011205870417
- Michael Duffy, MDTwin Falls, ID 833011790742898
- Laura Fall, MDTwin Falls, ID 833011518924026
- Bruce Gollub, M.D.Twin Falls, ID 833011508855917
- Kenneth Harris, MDTwin Falls, ID 833011447295480
- Erik Long, M.D.Twin Falls, ID 833011609834621
- Ryan Melvin, MDTwin Falls, ID 833011679519276
Common questions
What is Marc Van Farnworth, MD's NPI number?
Marc Van Farnworth, MD's National Provider Identifier (NPI) is 1124288758, issued on Jun 17, 2008. An NPI identifies a provider in billing; it is not a license.
Where is Marc Van Farnworth, MD located?
The NPPES record lists a practice address at 801 Pole Line RD W, Twin Falls, ID, 83301. Phone: (208) 814-4100. Providers update this record themselves, so call before visiting.
How can I verify Marc Van Farnworth, MD's license?
NPPES lists Idaho license number M-10859, as entered by the provider. Search the Idaho Board of Medicine at https://dopl.idaho.gov/bom/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Marc Van Farnworth, MD prescribe under Medicare Part D?
In 2024, Marc Van Farnworth, MD had 365 Medicare Part D claims for 127 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.