NPPES file of Aug 9, 2026

Nicholas James O'Brien, PMHNP

Psychiatric/Mental Health Nurse Practitioner · Torrington, CT

Nicholas James O'Brien, PMHNP is a psychiatric/mental health nurse practitioner with a practice address in Torrington, Connecticut, and NPI 1134504715, issued on Jul 24, 2015. Check the license (Connecticut 6158, 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
1134504715
Name
Nicholas James O'Brien
Credential
PMHNP
Primary taxonomy
Psychiatric/Mental Health Nurse Practitioner 363LP0808X
License number
6158 CT
Self-reported in NPPES; status is on the state search
Practice location
52 Peck RD Rear, Torrington, CT 06790
Phone
(860) 417-8633
Enumerated
Jul 24, 2015
Record last updated
Mar 6, 2024
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 52 Peck RD Rear

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

  1. Jessica RepassProfessional Counselor1003759168

Verify Nicholas James O'Brien 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 6158
    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

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83% fewer Medicare Part D claims than the average psychiatric/mental health nurse practitioner in 2024

152 Medicare Part D claims, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D.

  1. Nicholas O'Brien152
  2. Specialty average906

Most prescribed

  1. Duloxetine Hcl32 claims
  2. Bupropion Xl27 claims
  3. Alprazolam25 claims
  4. Zolpidem Tartrate20 claims
  5. Dextroamphetamine-Amphetamine17 claims
  6. Lamotrigine11 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.

Nicholas James O'Brien among 1,108 psychiatric/mental health nurse practitioner records in Connecticut

Nicholas James O'Brien, PMHNP 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 2015, is newer than 34% of them.

  • NPI issued2015 · 34% of these records are older, 62% newer
  • In a Medicare fileYes · 70% of these records are
  • In the CMS Doctors and Clinicians fileNo · 51% of these records are
  • Record last updated2024 · 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.

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

  1. Maureen BruceTorrington, CT 067901417090879
  2. Nicole Davis, APRNTorrington, CT 067901689412371
  3. Amanda EchevarriaTorrington, CT 067901598551459
  4. Iris Guillemette, MSN, APRN, PMHNP-BCTorrington, CT 067901477987923
  5. Kamil Koper, APRNTorrington, CT 067901467293522
  6. Jamie Laviana, APRNTorrington, CT 067901699480251
  7. Megan Mancinelli, APRNTorrington, CT 067901912684408
  8. Cheryl Marchetti, APRNTorrington, CT 067901992848360

Common questions

What is Nicholas James O'Brien, PMHNP's NPI number?

Nicholas James O'Brien, PMHNP's National Provider Identifier (NPI) is 1134504715, issued on Jul 24, 2015. An NPI identifies a provider in billing; it is not a license.

Where is Nicholas James O'Brien, PMHNP located?

The NPPES record lists a practice address at 52 Peck RD Rear, Torrington, CT, 06790. Phone: (860) 417-8633. Providers update this record themselves, so call before visiting.

How can I verify Nicholas James O'Brien, PMHNP's license?

NPPES lists Connecticut license number 6158, as entered by the provider. Search the Connecticut board that licenses this profession; the NPPES record confirms identity only.

How much does Nicholas James O'Brien, PMHNP prescribe under Medicare Part D?

In 2024, Nicholas James O'Brien, PMHNP had 152 Medicare Part D claims; 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.