Nicholas O'Brien, PMHNP
NPI 1134504715 · Psychiatric/Mental Health Nurse Practitioner · Torrington, CT
Nicholas O'Brien, PMHNP is a Psychiatric/Mental Health Nurse Practitioner provider in Torrington, CT (NPI 1134504715).
Provider details
- NPI number
- 1134504715
- Entity type
- Individual
- Primary specialty
- Psychiatric/Mental Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PMHNP
- Sex
- Male
- Sole proprietor
- No
- License
- 6158 (CT)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
10 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 6 distinct drugs on file.
| Drug | Part D claims (2024) |
|---|---|
| Duloxetine Hcl | 32 |
| Bupropion Hclbrand: Bupropion Xl | 27 |
| Alprazolam | 25 |
| Zolpidem Tartrate | 20 |
| Dextroamphetamine/Amphetaminebrand: Dextroamphetamine-Amphetamine | 17 |
| Lamotrigine | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Registry dates
- Enumerated
- 2015-07-24
- Last updated
- 2024-03-06
- Certified
- 2024-03-06
Frequently asked questions
- What is Nicholas O'Brien's NPI number?
- Nicholas O'Brien's National Provider Identifier (NPI) is 1134504715, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Nicholas O'Brien's specialty?
- Nicholas O'Brien is listed in the NPPES registry with a primary specialty of Psychiatric/Mental Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Nicholas O'Brien located?
- Nicholas O'Brien's practice location on file with NPPES is 52 Peck Rd Rear, Torrington, CT 06790-6107.
- What is Nicholas O'Brien's phone number?
- The practice phone number listed in the NPPES registry for Nicholas O'Brien is (860) 417-8633.
- Is Nicholas O'Brien's NPI active?
- Yes — Nicholas O'Brien's NPI (1134504715) is active in the NPPES registry as of the last update on 2024-03-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.