Iris S. Guillemette, MSN, APRN, PMHNP-BC
Psychiatric/Mental Health Nurse Practitioner · Torrington, CT
Iris S. Guillemette, MSN, APRN, PMHNP-BC is a psychiatric/mental health nurse practitioner with a practice address in Torrington, Connecticut, and NPI 1477987923, issued on Sep 1, 2013. Check the license (Connecticut 5495, as entered in NPPES) with the Connecticut board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Iris S. Guillemette
- Credential
- MSN, APRN, PMHNP-BC
- Primary taxonomy
- Psychiatric/Mental Health Nurse Practitioner 363LP0808X
- License number
- 5495 CT
Self-reported in NPPES; status is on the state search - Practice location
- 540 Litchfield St, Torrington, CT 06790
- Phone
- (860) 496-6350
- Enumerated
- Sep 1, 2013
- Record last updated
- Sep 1, 2013 (not updated in 13 years: call before relying on the address or phone)
- Fax
- (860) 496-6713
- Entity
- Type 1 · individual
8 nearest psychiatric/mental health nurse practitioner records → All 1,108 in Connecticut → Look up another NPI →
Also registered at 540 Litchfield St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Joyce Armstrong, LCSWClinical Social Worker1881832327
- Allison Arnista, PA-CPhysician Assistant1689534257
Verify Iris S. Guillemette in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Connecticut board licenses this profession
Search for license 5495Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
75% fewer Medicare Part D claims than the average psychiatric/mental health nurse practitioner in 2024
228 Medicare Part D claims for 24 beneficiaries, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.
Most prescribed
- Bupropion Xl29 claims
- Buprenorphine-Naloxone22 claims
- Prazosin Hcl19 claims
- Trazodone Hcl19 claims
- Quetiapine Fumarate17 claims
- Caplyta15 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.
Iris S. Guillemette among 1,108 psychiatric/mental health nurse practitioner records in Connecticut
Iris S. Guillemette, MSN, APRN, 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 2013, is newer than 28% of them.
- NPI issued2013 · 28% of these records are older, 69% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileNo · 51% of these records are
- Record last updated2013 · 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).
15 psychiatric/mental health nurse practitioner records list a practice address in Torrington
They are 15 of the 824 NPPES records with a practice address in Torrington, and 1,108 psychiatric/mental health nurse practitioner records in Connecticut.
All 1,108 in Connecticut → Every provider in Torrington → Psychiatric/Mental Health Nurse Practitioner nationwide →
The 8 psychiatric/mental health nurse practitioner records with the nearest ZIP codes
- Maureen BruceTorrington, CT 067901417090879
- Nicole Davis, APRNTorrington, CT 067901689412371
- Amanda EchevarriaTorrington, CT 067901598551459
- Kamil Koper, APRNTorrington, CT 067901467293522
- Jamie Laviana, APRNTorrington, CT 067901699480251
- Megan Mancinelli, APRNTorrington, CT 067901912684408
- Cheryl Marchetti, APRNTorrington, CT 067901992848360
- Nicholas O'Brien, PMHNPTorrington, CT 067901134504715
Common questions
What is Iris S. Guillemette, MSN, APRN, PMHNP-BC's NPI number?
Iris S. Guillemette, MSN, APRN, PMHNP-BC's National Provider Identifier (NPI) is 1477987923, issued on Sep 1, 2013. An NPI identifies a provider in billing; it is not a license.
Where is Iris S. Guillemette, MSN, APRN, PMHNP-BC located?
The NPPES record lists a practice address at 540 Litchfield St, Torrington, CT, 06790. Phone: (860) 496-6350. Providers update this record themselves, so call before visiting.
How can I verify Iris S. Guillemette, MSN, APRN, PMHNP-BC's license?
NPPES lists Connecticut license number 5495, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.
How much does Iris S. Guillemette, MSN, APRN, PMHNP-BC prescribe under Medicare Part D?
In 2024, Iris S. Guillemette, MSN, APRN, PMHNP-BC had 228 Medicare Part D claims for 24 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.