NPPES file of Aug 9, 2026

Kirby Farnsworth, D.O.

Emergency Medicine Physician · Wickenburg, AZ

Kirby Farnsworth, D.O. is an emergency medicine physician with a practice address in Wickenburg, Arizona, and NPI 1124464839, issued on May 21, 2013. Check the license (Arizona 006965, as entered in NPPES) on the Arizona Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1124464839
Name
Kirby Farnsworth
Credential
D.O.
Primary taxonomy
Emergency Medicine Physician 207P00000X
License numbers
006965 AZ
Q1981 TX
Self-reported in NPPES; status is on the state search
Practice location
520 Rose LN, Wickenburg, AZ 85390
Phone
(928) 668-1803
Enumerated
May 21, 2013
Record last updated
Apr 26, 2024
Fax
(928) 684-2434
Medicare enrollment
Enrolled (PECOS I20160829000906); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 520 Rose LN

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Melissa Anderson, PT, DPTPhysical Therapist1861895641
  2. Michael Bacon, PTPhysical Therapist1851832885
  3. Stephanie Baker, CRNACertified Registered Nurse Anesthetist1184031288
  4. Dennis Barraco, DOEmergency Medicine Physician1144203035
  5. Mikaila Caraveo Ruiz, PTAPhysical Therapy Assistant1033772355
  6. Kenneth Caton, P.A.Medical Physician Assistant1508858754

Verify Kirby Farnsworth in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersArizona Medical Board
    Search for license 006965
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Arizona license search

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9% fewer Medicare Part D claims than the average emergency medicine physician in 2024

206 Medicare Part D claims for 130 beneficiaries, against an average of 226 among the 54,106 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 15 claims were for opioids.

  1. Kirby Farnsworth206
  2. Specialty average226

Most prescribed

  1. Cephalexin18 claims
  2. Ondansetron Odt13 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.

Industry payments in 2024: $75.23

2 payments; by number, the most common kind was food and beverage; the largest payer was W. L. Gore & Associates, Inc. The 12,335 providers of this specialty with any payment received $953.79 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Kirby Farnsworth$75.23
  2. Specialty average$953.79

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through 2 group practices

  1. Fhmc ClinicFountain Hills, AZ
  2. Rural Physicians Group-Pannu PLLCWickenburg, AZ

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Kirby Farnsworth among 1,494 emergency medicine physician records in Arizona

Kirby Farnsworth, D.O. is one of 1,494 emergency medicine physician records with a practice address in Arizona. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2013, is newer than 57% of them.

  • NPI issued2013 · 57% of these records are older, 39% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 55% of these records are
  • Graduated2013 · median 2014 among the 828 with a school on file
  • Record last updated2024 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Arizona practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

2 emergency medicine physician records list a practice address in Wickenburg

They are 2 of the 137 NPPES records with a practice address in Wickenburg, and 1,494 emergency medicine physician records in Arizona.

The 8 emergency medicine physician records with the nearest ZIP codes

  1. Dennis Barraco, DOWickenburg, AZ 853901144203035
  2. Prachi MehtaSurprise, AZ 853881689254344
  3. Walter Simmons, M.D., MPHAvondale, AZ 853921023087293
  4. Ty Bowman, MDGoodyear, AZ 853951619503596
  5. Nancy Churosh, M.D.Goodyear, AZ 853951851379051
  6. Michel Dagher, D.O.Goodyear, AZ 853951245669993
  7. Mitchell Erickson, PAGoodyear, AZ 853951073598355
  8. Jennifer Fitzgerald, DOGoodyear, AZ 853951255968715

Common questions

What is Kirby Farnsworth, D.O.'s NPI number?

Kirby Farnsworth, D.O.'s National Provider Identifier (NPI) is 1124464839, issued on May 21, 2013. An NPI identifies a provider in billing; it is not a license.

Where is Kirby Farnsworth, D.O. located?

The NPPES record lists a practice address at 520 Rose LN, Wickenburg, AZ, 85390. Phone: (928) 668-1803. Providers update this record themselves, so call before visiting.

How can I verify Kirby Farnsworth, D.O.'s license?

NPPES lists Arizona license number 006965, as entered by the provider. Search the Arizona Medical Board at https://www.azmd.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Kirby Farnsworth, D.O. prescribe under Medicare Part D?

In 2024, Kirby Farnsworth, D.O. had 206 Medicare Part D claims for 130 beneficiaries; the average among emergency medicine physician prescribers was 226. 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.