Dr. David J Farnsworth , DC
Chiropractor • Mesa, AZ
1425 S Greenfield Rd, 101
Mesa, AZ 852065529
This profile restates public CMS/NPPES data; T-MedInfo gives no medical advice — consult a licensed professional, and call 911 for emergencies.
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NPI assigned on July 9, 2006; this date does not establish years in practice.
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Published CMS data list 226 Original Medicare Part B services in 2021.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2021. Published rows only; this is not a quality measure.
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Published Part B service records, 2021:
- 98941 — Chiropractic manipulative treatment, 3-4 spinal regions: 199 service units.
- 98942 — Chiropractic manipulative treatment, 5 spinal regions: 27 service units.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2021. Units differ by code; these are not visits or a measure of quality.
CPT® only copyright 2020 American Medical Association. All rights reserved. Service names are shortened from CPT Consumer Friendly Descriptors (CMS data, 2021). CPT notice
See the full table · Guide: How to read Medicare Part B data
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Medicare Part B services went from 940 in 2017 to 226 in 2021.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2017–2021.
Practice Location & Contact Primary Location
1425 S Greenfield Rd
101
Mesa, AZ 852065529
Matched by practice address or phone in NPPES. A shared address or phone does not confirm that this clinician works there.
What Public CMS Data Show
Chiropractor: NPPES taxonomy is a reported classification, not proof of board certification.
Medicare-allowed amount
About $9,299 in 2021
The total amount Medicare approved for these services in 2021. It includes what Medicare paid and what patients or their other insurance owed, such as the deductible and coinsurance.
It shows the total cost of this clinician's Original Medicare services under Medicare's fee rules.
What this does not show: Medicare-allowed amount
This is not the clinician's income. Part of it can go to a clinic or group practice, staff, equipment or drugs. It is not the price you will pay.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2021.
Paid by Medicare
About $6,008 in 2021
The part of the Medicare-allowed amount that Medicare itself paid in 2021, after patients' deductibles and coinsurance.
The gap between the allowed amount and this number is roughly what patients and their other insurance paid.
What this does not show: Paid by Medicare
This is not the clinician's income and not a measure of quality.
Source: CMS, Medicare Physician & Other Practitioners – by Provider and Service, 2021.
Open Payments general payments, program year 2021
All general payments: $159.76 across 9 records.
By nature of payment
- Food and Beverage: $159.76 across 9 records.
Reporting-company totals (3 largest of 8)
- Abbott Laboratories: $39.73 across 2 records.
- Ethicon Inc.: $27.56 across 1 record.
- Novo Nordisk Inc: $19.18 across 1 record.
A reported payment does not necessarily mean the financial relationship is improper and is not a measure of care quality. Clinicians can review and dispute these records.
Source: Calculated by T-MedInfo from CMS Open Payments general-payment records for program year 2021 (published June 30, 2026).
NPI first issued
2006
The year this clinician's National Provider Identifier (NPI) was issued. An NPI is a unique 10-digit ID that US health care providers use for billing.
What this does not show: NPI first issued
NPIs have been issued only since 2005, so this year is not necessarily when the clinician started practicing.
Source: CMS NPPES NPI Registry.
Medicare assignment not listed
CMS data do not show whether this clinician accepts Medicare assignment. This does not mean they do not accept Medicare. Ask the office.
Medicare assignment applies to Original Medicare. It does not tell you whether the clinician is in a Medicare Advantage plan's network, accepts other insurance, or is taking new patients.
Source: CMS Doctors and Clinicians; Medicare.gov, “Does your provider accept Medicare as full payment?”
No telehealth indicator
CMS shows this indicator only when recent Medicare claims include telehealth services. The clinician may still offer telehealth; ask the office.
Source: CMS, Telehealth Indicator on Medicare Care Compare (fact sheet, January 2023); CMS Doctors and Clinicians.
Compared with the same specialty in Mesa and Arizona
Billing and prescribing volume is not a quality rating.
Medicare Part B
Comparisons use 2024 data. The latest CMS data for Dr. Farnsworth are from 2021.
179 active clinicians are listed under Chiropractor with a practice address in Mesa, AZ (1,971 in Arizona).
Addresses are self-reported to NPPES and may be out of date.
Telehealth indicator in Mesa
0% of these 179 clinicians have the CMS telehealth indicator.
29.6% of these 179 clinicians are listed by CMS as accepting Medicare assignment.
CMS data by year
Changes may reflect reporting, coverage or privacy limits, not changes in care quality.
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Medicare Part B services
Medicare Part B services decreased 76% from 940 in 2017 to 226 in 2021.
- 2017: 940
- 2018: 879
- 2019: 851
- 2020: 588
- 2021: 226
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Medicare-allowed amount
Medicare-allowed amount decreased 76% from $38,215 in 2017 to $9,299 in 2021.
- 2017: $38,215
- 2018: $36,320
- 2019: $35,746
- 2020: $24,355
- 2021: $9,299
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Paid by Medicare
Paid by Medicare decreased 79% from $28,587 in 2017 to $6,008 in 2021.
- 2017: $28,587
- 2018: $27,987
- 2019: $24,912
- 2020: $17,716
- 2021: $6,008
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Industry payments (Open Payments)
Industry payments (Open Payments) went from $67.77 in 2019 to $159.76 in 2021.
- 2019: $67.77
- 2020: $169.52
- 2021: $159.76
Sources: CMS Medicare Physician & Other Practitioners (2021), CMS Open Payments (2021), CMS Doctors and Clinicians, CMS NPPES NPI Registry. Specialty names follow the NUCC Health Care Provider Taxonomy.
Text: T-MedInfo · Report an error.
Pharma & Medical Device Financial Disclosures
Payments and other transfers of value that drug and medical device companies reported to CMS Open Payments
Program year 2021 (payments made January 1 – December 31, 2021): fewer than 11 records totaling $159.76.
| Manufacturer | Payment Nature | Product | Type | Amount ($) |
|---|---|---|---|---|
| Ethicon Inc. |
Food and Beverage
In-kind items and services
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— | General | $27.56 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
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Proclaim IPG | General | $23.48 |
| Novo Nordisk Inc |
Food and Beverage
In-kind items and services
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Ozempic | General | $19.18 |
| AbbVie Inc. |
Food and Beverage
In-kind items and services
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VRAYLAR | General | $18.04 |
| Boehringer Ingelheim Pharmaceuticals, Inc. |
Food and Beverage
In-kind items and services
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JARDIANCE | General | $16.29 |
| Abbott Laboratories |
Food and Beverage
In-kind items and services
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FreeStyle Libre | General | $16.25 |
| Amgen Inc. |
Food and Beverage
In-kind items and services
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EVENITY | General | $13.70 |
| Becton, Dickinson and Company |
Food and Beverage
In-kind items and services
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BD Nano | General | $12.97 |
| Vanda Pharmaceuticals Inc. |
Food and Beverage
In-kind items and services
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HETLIOZ | General | $12.29 |
Source: CMS Open Payments, program year 2021, released June 30, 2026.
Performed Procedures & Service Volume
CPT® is a registered trademark of the American Medical Association. CPT codes, descriptions and other data only are copyright 2016–2020 American Medical Association. All rights reserved. Applicable FARS/HHSARS apply. Descriptions of CPT codes are the AMA's CPT Consumer Friendly Descriptors as published by CMS in the Medicare Physician & Other Practitioners – by Provider and Service data, 2017–2021; they are plain-language summaries, not for clinical coding or documentation. HCPCS Level II codes and descriptions are from CMS. Fee schedules, relative value units, conversion factors and/or related components are not assigned by the AMA, are not part of CPT, and the AMA is not recommending their use. The AMA does not directly or indirectly practice medicine or dispense medical services. The AMA assumes no liability for data contained or not contained herein.
| HCPCS Code | Services | Patients | Submitted Charge | Medicare Allowed |
|---|---|---|---|---|
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98941
Chiropractic manipulative treatment, 3-4 spinal regions
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199 | 46 | $54.00 | $39.67 |
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98942
Chiropractic manipulative treatment, 5 spinal regions
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27 | 11 | $54.00 | $52.01 |
Source: CMS Part B by Provider and Service, 2021; services under 11 beneficiaries omitted by CMS. Privacy limits
Submitted charges are billed amounts, not a price quote for your visit.
Specialties & License Numbers Reported to NPPES
NUCC Taxonomy Code: 111N00000X
A provider qualified by a Doctor of Chiropractic (D.C.), licensed by the State and who practices chiropractic medicine -that discipline within the healing arts which deals with the nervous system and its relationship to the spinal column and its interrelationship with other body systems.
Clinicians Sharing This Practice Address or Phone
Clinicians sharing this NPPES address, phone or fax; a shared contact does not mean they work together.
Family Medicine
Doctor of Medicine (M.D.)
Physician Assistant - Medical
Physician Assistant
Physician Assistant - Medical
Physician Assistant
Physician Assistant - Medical
Physician Assistant (Certified)
Physician Assistant
Physician Assistant
Family Medicine
Doctor of Medicine (M.D.)
Career & Practice History
NPI enumerated July 09, 2006.
No changes to the name, practice address, taxonomy or NPI status in this record have been observed in the monthly NPPES data files from January 2017 to August 2026.
NPI Administrative Meta
Other Chiropractors in Mesa
- Dr. Jeremy Buckner, DC
- Dr. Richard Campbell, DC
- Dr. Sam Pourian, DC
- Dr. Daniel Kinkead, DC
- Dr. Samuel Hallows, DC
- Dr. Janeen Sarhaddi, DC
Mailing Address
1425 S Greenfield Rd, 101
Mesa, AZ 852065529
Phone: 4809813000