NPPES file of Aug 9, 2026

Clifford Doiron, PA-C

Physician Assistant · Waterbury, CT

Clifford Doiron, PA-C is a physician assistant with a practice address in Waterbury, Connecticut, and NPI 1114515624, issued on Jan 10, 2021. Check the license (Connecticut 5414, as entered in NPPES) with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1114515624
Name
Clifford Doiron
Credential
PA-C
Primary taxonomy
Physician Assistant 363A00000X
License number
5414 CT
Self-reported in NPPES; status is on the state search
Practice location
500 Chase Pkwy, Waterbury, CT 06708
Phone
(203) 755-6677
Enumerated
Jan 10, 2021
Record last updated
Oct 11, 2021 (not updated in 5 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20211027001788); 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 500 Chase Pkwy

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

  1. Sarah Adams, PA-CSurgical Physician Assistant1477748341
  2. Saudi Baguio, P.T.Physical Therapist1356596886
  3. Stephanie Beierle, PA-CSurgical Physician Assistant1518277920
  4. Dawn Colomb-Lippa, PHYSICIAN ASSISTANTMedical Physician Assistant1093848921
  5. Sharon Diaz-Powe, LPC, LADCProfessional Counselor1831133982
  6. Albert Diloreto, PA-CMedical Physician Assistant1417071275

Verify Clifford Doiron in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
    Search for license 5414
    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
Find the Connecticut license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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2.3 times the Medicare Part D claims of the average physician assistant in 2024

1,909 Medicare Part D claims for 290 beneficiaries, against an average of 830 among the 101,058 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims. 1,022 claims were for opioids.

  1. Clifford Doiron1,909
  2. Specialty average830

Most prescribed

  1. Gabapentin340 claims
  2. Hydrocodone-Acetaminophen275 claims
  3. Tramadol Hcl234 claims
  4. Oxycodone-Acetaminophen191 claims
  5. Oxycodone Hcl176 claims
  6. Pregabalin90 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 82.9 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score87.5
  2. Costout of 100 · 30%60.7
  3. Promoting interoperabilityout of 100 · 25%84.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $2,799.75

39 payments; by number, the most common kind was food and beverage; the largest payer was Curonix LLC. The 64,719 providers of this specialty with any payment received $841.65 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Clifford Doiron$2,799.75
  2. Specialty average$841.65

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

Bills Medicare through one group practice

  1. Neurosurgery Orthopaedics And Spine Specialists PCWaterbury, CT

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

Clifford Doiron among 2,047 physician assistant records in Connecticut

Clifford Doiron, PA-C is one of 2,047 physician assistant records with a practice address in Connecticut. 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 2021, is newer than 65% of them.

  • NPI issued2021 · 65% of these records are older, 29% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 65% of these records are
  • Graduated2021 · median 2018 among the 1,338 with a school on file
  • Record last updated2021 · 42% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363A00000X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

60 physician assistant records list a practice address in Waterbury

They are 60 of the 3,148 NPPES records with a practice address in Waterbury, and 2,047 physician assistant records in Connecticut.

The 8 physician assistant records with the nearest ZIP codes

  1. Jennifer Aldrich, PA-CWaterbury, CT 067081992108757
  2. Lynn Baylis, P.A.Waterbury, CT 067081063496776
  3. Michele Colwell, PAWaterbury, CT 067081518071406
  4. Sandra Dock, PA-CWaterbury, CT 067081770695140
  5. Erin Floridia, PA-CWaterbury, CT 067081629387097
  6. Alan Houle, PA-CWaterbury, CT 067081891777918
  7. Steven Kaufmann, PA-CWaterbury, CT 067081700868056
  8. Jenna Langello, PA-CWaterbury, CT 067081538419742

Common questions

What is Clifford Doiron, PA-C's NPI number?

Clifford Doiron, PA-C's National Provider Identifier (NPI) is 1114515624, issued on Jan 10, 2021. An NPI identifies a provider in billing; it is not a license.

Where is Clifford Doiron, PA-C located?

The NPPES record lists a practice address at 500 Chase Pkwy, Waterbury, CT, 06708. Phone: (203) 755-6677. Providers update this record themselves, so call before visiting.

How can I verify Clifford Doiron, PA-C's license?

NPPES lists Connecticut license number 5414, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.

How much does Clifford Doiron, PA-C prescribe under Medicare Part D?

In 2024, Clifford Doiron, PA-C had 1,909 Medicare Part D claims for 290 beneficiaries; the average among physician assistant prescribers was 830. Part D covers Medicare prescriptions only.

What is Clifford Doiron, PA-C's MIPS final score?

The 2023 MIPS final score is 82.9 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.