NPPES file of Aug 9, 2026

Marc Dylan Gagnon, PMHNP-BC

Psychiatric/Mental Health Nurse Practitioner · Avon, CT

Marc Dylan Gagnon, PMHNP-BC is a psychiatric/mental health nurse practitioner with a practice address in Avon, Connecticut, and NPI 1508631623, issued on Nov 20, 2023. Check the license (Connecticut 12627, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1508631623
Name
Marc Dylan Gagnon
Credential
PMHNP-BC
Primary taxonomy
Psychiatric/Mental Health Nurse Practitioner 363LP0808X
License number
12627 CT
Self-reported in NPPES; status is on the state search
Practice location
21 Waterville RD, Avon, CT 06001
Phone
(860) 284-0182
Enumerated
Nov 20, 2023
Record last updated
Mar 10, 2026
Medicare enrollment
Enrolled (PECOS I20240129003559); 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 21 Waterville RD

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

  1. Gunilla Adonteng-Boateng, DPTPhysical Therapist1215332481
  2. Abdelmonim Affany, MDPsychiatry Physician1407808645
  3. Mallory Akin, APRNNurse Practitioner1467238162
  4. Laura Applebaum, PTPhysical Therapist1083919476
  5. Marjorie Arni, APRNNurse Practitioner1043263502
  6. Makaila Baldie, APRN,PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1144151812

Verify Marc Dylan Gagnon 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 12627
    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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31% more Medicare Part D claims than the average psychiatric/mental health nurse practitioner in 2024

1,189 Medicare Part D claims for 229 beneficiaries, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D. Brand-name drugs were under 1% of claims.

  1. Marc Gagnon1,189
  2. Specialty average906

Most prescribed

  1. Sertraline Hcl176 claims
  2. Memantine Hcl111 claims
  3. Escitalopram Oxalate92 claims
  4. Donepezil Hcl88 claims
  5. Quetiapine Fumarate87 claims
  6. Trazodone Hcl78 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: $59.48

3 payments; by number, the most common kind was food and beverage; the largest payer was Acadia Pharmaceuticals Inc. The 23,362 providers of this specialty with any payment received $1,027.77 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Marc Gagnon$59.48
  2. Specialty average$1,027.77

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. Harvest Healthcare LLCAvon, CT

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

Marc Dylan Gagnon among 1,108 psychiatric/mental health nurse practitioner records in Connecticut

Marc Dylan Gagnon, PMHNP-BC is one of 1,108 psychiatric/mental health nurse practitioner records with a practice address in Connecticut. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2023, is newer than 74% of them.

  • NPI issued2023 · 74% of these records are older, 19% newer
  • In a Medicare fileYes · 70% of these records are
  • In the CMS Doctors and Clinicians fileYes · 51% of these records are
  • Graduated2023 · median 2020 among the 566 with a school on file
  • Record last updated2026 · 38% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LP0808X and a Connecticut practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

17 psychiatric/mental health nurse practitioner records list a practice address in Avon

They are 17 of the 673 NPPES records with a practice address in Avon, and 1,108 psychiatric/mental health nurse practitioner records in Connecticut.

The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes

  1. Savitha ChandramohanAvon, CT 060011316571458
  2. Nezha Elomari, NURSE PRACTITIONERAvon, CT 060011700678844
  3. Ruth Goldbaum, A.P.R.N.Avon, CT 060011588831192
  4. Morgan Jennings, APRNAvon, CT 060011740709443
  5. Debra Johnson, APRNAvon, CT 060011427056472
  6. Latonya King, PMHNP-BCAvon, CT 060011023579885
  7. Laura Kramer, APRNAvon, CT 060011336299916
  8. Andrew Lee, PMHNPAvon, CT 060011811651177

Common questions

What is Marc Dylan Gagnon, PMHNP-BC's NPI number?

Marc Dylan Gagnon, PMHNP-BC's National Provider Identifier (NPI) is 1508631623, issued on Nov 20, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Marc Dylan Gagnon, PMHNP-BC located?

The NPPES record lists a practice address at 21 Waterville RD, Avon, CT, 06001. Phone: (860) 284-0182. Providers update this record themselves, so call before visiting.

How can I verify Marc Dylan Gagnon, PMHNP-BC's license?

NPPES lists Connecticut license number 12627, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.

How much does Marc Dylan Gagnon, PMHNP-BC prescribe under Medicare Part D?

In 2024, Marc Dylan Gagnon, PMHNP-BC had 1,189 Medicare Part D claims for 229 beneficiaries; the average among psychiatric/mental health nurse practitioner prescribers was 906. 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.