David C. Rioux, D.O.
Family Medicine Physician · Machias, ME
David C. Rioux, D.O. is a family medicine physician with a practice address in Machias, Maine, and NPI 1316084650, issued on Jan 30, 2007. Check the license (Maine 1274, as entered in NPPES) on the Maine Board of Licensure in Medicine; the Medicare figures below come from public CMS files.
- Name
- David C. Rioux
- Credential
- D.O.
- Primary taxonomy
- Family Medicine Physician 207Q00000X
- License number
- 1274 ME
Self-reported in NPPES; status is on the state search - Practice location
- 11 Hospital Dr, Machias, ME 04654
- Phone
- (207) 255-4567
- Enumerated
- Jan 30, 2007
- Record last updated
- Apr 14, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (207) 255-0705
- Medicaid ID
- 119870099 ME
- Entity
- Type 1 · individual
8 nearest family medicine physician records → All 1,172 in Maine → Look up another NPI →
Also registered at 11 Hospital Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Heather Dodsworth, MS CCC-SLPSpeech-Language Pathologist1134428717
Verify David C. Rioux in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMaine Board of Licensure in Medicine
Search for license 1274Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
2.9 times the Medicare Part D claims of the average family medicine physician in 2024
10,276 Medicare Part D claims for 448 beneficiaries, against an average of 3,544 among the 117,163 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 484 claims were for opioids.
Most prescribed
- Lisinopril495 claims
- Atorvastatin Calcium490 claims
- Amlodipine Besylate438 claims
- Potassium Chloride352 claims
- Levothyroxine Sodium341 claims
- Omeprazole318 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.
No measured MIPS final score for 2023
CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,581.47
79 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 55,478 providers of this specialty with any payment received $902.55 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
David C. Rioux among 1,172 family medicine physician records in Maine
David C. Rioux, D.O. is one of 1,172 family medicine physician records with a practice address in Maine. 76% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 48% of them.
- NPI issued2007 · 48% of these records are older, 44% newer
- In a Medicare fileYes · 76% of these records are
- In the CMS Doctors and Clinicians fileNo · 57% of these records are
- Record last updated2015 · 60% 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 Maine practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
4 family medicine physician records list a practice address in Machias
They are 4 of the 135 NPPES records with a practice address in Machias, and 1,172 family medicine physician records in Maine.
All 1,172 in Maine → Every provider in Machias → Family Medicine Physician nationwide →
The 8 family medicine physician records with the nearest ZIP codes
- Eric Burke, M.D.Northfield, ME 046541689728529
- Katherine Grover, DOMachias, ME 046541902885965
- Nika Karlsson, DOMachias, ME 046541326615576
- Cynthia Sammis, M.D.Machias, ME 046541831202134
- Robert Abrams, M.D.Lubec, ME 046521720067010
- Carl Aselton, MDMilbridge, ME 046581568468163
- Cathleen London, M.D.Milbridge, ME 046581356652937
- Drew Ramsay, DOMilbridge, ME 046581720516248
Common questions
What is David C. Rioux, D.O.'s NPI number?
David C. Rioux, D.O.'s National Provider Identifier (NPI) is 1316084650, issued on Jan 30, 2007. An NPI identifies a provider in billing; it is not a license.
Where is David C. Rioux, D.O. located?
The NPPES record lists a practice address at 11 Hospital Dr, Machias, ME, 04654. Phone: (207) 255-4567. Providers update this record themselves, so call before visiting.
How can I verify David C. Rioux, D.O.'s license?
NPPES lists Maine license number 1274, as entered by the provider. Search the Maine Board of Licensure in Medicine at https://www.maine.gov/md/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does David C. Rioux, D.O. prescribe under Medicare Part D?
In 2024, David C. Rioux, D.O. had 10,276 Medicare Part D claims for 448 beneficiaries; the average among family medicine physician prescribers was 3,544. Part D covers Medicare prescriptions only.
What is David C. Rioux, D.O.'s MIPS final score?
CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.
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.