2026 NPPES data Psychiatric/Mental Health Nurse Practitioner NPI 1619557584 PMHNP-BC
Verify on CMS →

NICHOLAS IORIO, PMHNP-BC

Psychiatric/Mental Health Nurse Practitioner in GREENWICH, Connecticut. CMS National Plan and Provider Enumeration System profile including specialty classification, practice address, and Medicare prescribing data when reported.

Federal data — no proprietary rating. PlainDoctor publishes the actual CMS NPPES and Medicare records — NPI registration, specialty, practice location, and prescribing data — without a composite score or editorial opinion on top. Every field traces to a federal source.
Prescribing volume
289
Medicare Part D claims · 26 beneficiaries · Psychiatric/Mental Health Nurse Practitioner avg: 927

What the federal data shows

NICHOLAS IORIO, PMHNP-BC filed 289 Medicare Part D claims in 2023 as a Psychiatric/Mental Health Nurse Practitioner in GREENWICH, Connecticut.

289
Part D claims, 2023

Every figure on this page comes straight from federal CMS records (NPPES, Medicare Part D, MIPS, Open Payments) — no proprietary rating or editorial opinion is applied.

NICHOLAS IORIO, PMHNP-BC's Medicare Part D volume vs every U.S. prescriber

Total Medicare Part D claims, 2023 — across all CMS prescribers nationally

289 49th percentile higher than 49% of 1,370,886 prescribers

0–200: 670,926 prescribers (49%). Below this entry. 200–400: 182,923 prescribers (13%). This entry sits in this band. 400–600: 90,619 prescribers (7%). Above this entry. 600–800: 56,224 prescribers (4%). Above this entry. 800–1,000: 40,919 prescribers (3%). Above this entry. 1,000–1,200: 31,827 prescribers (2%). Above this entry. 1,200–1,400: 26,224 prescribers (2%). Above this entry. 1,400–1,600: 21,710 prescribers (2%). Above this entry. 1,600–1,800: 19,072 prescribers (1%). Above this entry. 1,800–2,000: 16,451 prescribers (1%). Above this entry. 2,000–2,200: 213,991 prescribers (16%). Above this entry. This provider 0 2K+ every Part D prescriber (claims/yr), bucketed by value

Each bar is a band; taller bars hold more prescribers. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count, share, and where it sits relative to this entry.

Source CMS Medicare Part D Prescriber Public Use File · 2023

What does the federal data show about NICHOLAS IORIO, PMHNP-BC?

Quality data not reported

NPI registry status

Active

Issued 04/13/2021

NPI 1619557584

Primary specialty

Psychiatric/Mental Health Nurse Practitioner

Mid-sized

39,953 US NPIs in this specialty

Medicare Part D claims

289 69% vs specialty avg

2023 prescription claims

Specialty avg: 927

Specialty distribution in Connecticut

How Psychiatric/Mental Health Nurse Practitioner compares to other specialties among Connecticut providers

Connecticut providers

Psychiatric/Mental Health Nurse Practitioner share within Connecticut

1. Psychiatric/Mental Health Nurse Practitioner42%2. Internal medicine21%3. Family medicine17%4. Surgical12%5. Pediatric8%
Psychiatric/Mental Health Nurse Practitioner share within Connecticut

Specialty board-certification context

Estimated specialty board-certified rate — Psychiatric/Mental Health Nurse Practitioner (ABMS / AOA reference)

Quality data not reported
Est. board-certified rate
78%
Psychiatric/Mental Health Nurse Practitioner ABMS/AOA estimate

Est. board-certified rate (Psychiatric/Mental Health Nurse Practitioner) — ABMS / AOA estimate

0%100%78%
Est. board-certified rate (Psychiatric/Mental Health Nurse Practitioner) — ABMS / AOA estimate

The Merit-based Incentive Payment System (MIPS) scores providers 0–100 across four performance categories: Quality, Cost, Promoting Interoperability, and Improvement Activities, weighted under 42 CFR §414.1380. Reporting is voluntary for many small practices, so absence of a MIPS score is not a quality signal.

Board certification through an ABMS or AOA member board signals voluntary post-licensure examination plus continuous Maintenance of Certification cycles. Verify any individual provider's status through certificationmatters.org (ABMS) or osteopathic.org (AOA).

NICHOLAS IORIO, PMHNP-BC appears in the CMS NPPES registry as a Psychiatric/Mental Health Nurse Practitioner provider holding PMHNP-BC credentials at 5 PERRYRIDGE RD, GREENWICH, CT, 06830, with a listed phone of (203) 863-3000. NPI 1619557584 was issued on 04/13/2021. Because NPPES data is self-reported by the provider and refreshed monthly, the address, phone, and specialty reflect what IORIO most recently submitted to CMS rather than a vetted directory listing, which is why patients should always confirm the practice is still at this location before scheduling.

Medicare Part D records for calendar year 2023 show 289 prescription claims written by this provider, covering 26 Medicare beneficiaries and totaling roughly $8K in drug spend. These figures capture only Medicare Part D — commercial insurance, Medicaid, and cash-pay prescriptions are not included, and any drug-beneficiary cell under 11 is suppressed by CMS for patient privacy.

Psychiatric/Mental Health Nurse Practitioner is a mid-sized specialty nationwide, with 39,953 enrolled providers across 54 states and an average of 927 Part D claims per prescriber, so the context for interpreting these metrics differs meaningfully from a primary-care baseline. Important: PlainDoctor is a directory of publicly available government data, not medical advice, a malpractice database, or a quality rating. Inclusion here does not imply a recommendation, and absence of complaints or sanctions on this page does not mean none exist — always verify credentials through the NPPES NPI Registry, your state medical board, and the ABMS or AOA before making healthcare decisions.

Practice Address

5 PERRYRIDGE RD
GREENWICH, CT 06830

Provider Details

NPI 1619557584
Specialty Psychiatric/Mental Health Nurse Practitioner
Credentials PMHNP-BC
Gender Male
NPI Issued 04/13/2021

Hospital and facility affiliations

Facilities where NICHOLAS IORIO, PMHNP-BC bills Medicare from. Star ratings (1-5) are CMS Hospital Compare's "Hospital overall rating" — a composite of mortality, readmission, patient experience, safety, timely care, and efficient use of medical imaging measures. Source: CMS Care Compare.

CRYSTAL RUN HEALTHCARE PHYSICIANS LLP
MIDDLETOWN, NY

Affiliations sourced from CMS Doctors and Clinicians National Downloadable File; hospital ratings from CMS Hospital General Information dataset (cross-referenced by facility name + state).

Medicare Part D Prescribing Data

CMS Medicare Part D prescriber-level data for calendar year 2023.

289
Total Claims
$8K
Total Drug Cost
26
Medicare Beneficiaries

Prescribing Breakdown

30-Day Fills
411
Total Day Supply
12,282
Generic Drug Cost
$7K

Patient Demographics

Average Patient Age
64.5 years
Avg HCC Risk Score
1.36

Top Prescribed Drugs (Medicare Part D)

Top drugs by claim count for calendar year 2023. Based on Medicare Part D data only.

What NICHOLAS IORIO, PMHNP-BC prescribes most

Top Medicare Part D drugs by claim count, 2023

claims
Source CMS Medicare Part D Prescriber Public Use File As of 2023
Drug Claims
Escitalopram Oxalate
39
Sertraline Hcl
31
Alprazolam
30
Quetiapine Fumarate
22
Clonazepam
21
Zolpidem Tartrate
20
Trazodone Hcl
16
Diazepam
14
Lorazepam
12

* Counts below 11 are suppressed by CMS for patient privacy. Generic names shown where available from CMS Part D data.

Psychiatric/Mental Health Nurse Practitioner Overview

How NICHOLAS IORIO, PMHNP-BC fits within the Psychiatric/Mental Health Nurse Practitioner landscape nationally.

39,953
Psychiatric/Mental Health Nurse Practitioner Providers in US
54
States with Psychiatric/Mental Health Nurse Practitioner
927
Avg Claims per Provider

NICHOLAS IORIO, PMHNP-BC's 289 claims are below the specialty average of 927.

Nearby Psychiatric/Mental Health Nurse Practitioner Providers in Connecticut

Other clinicians with the same primary specialty enrolled in Connecticut, drawn from the same CMS NPPES roster as IORIO.

Compare Psychiatric/Mental Health Nurse Practitioner nationally: see state-by-state distribution →

Frequently Asked Questions

What is NICHOLAS IORIO, PMHNP-BC's specialty?
NICHOLAS IORIO, PMHNP-BC specializes in Psychiatric/Mental Health Nurse Practitioner and practices in GREENWICH, Connecticut. Credentials: PMHNP-BC.
How much does NICHOLAS IORIO, PMHNP-BC prescribe under Medicare Part D?
In 2023, NICHOLAS IORIO, PMHNP-BC wrote 289 Medicare Part D claims totaling $8K in drug costs for 26 beneficiaries.
Where is NICHOLAS IORIO, PMHNP-BC located?
NICHOLAS IORIO, PMHNP-BC is located at 5 PERRYRIDGE RD, GREENWICH, CT, 06830. Phone: (203) 863-3000.
What is NICHOLAS IORIO, PMHNP-BC's NPI number?
NICHOLAS IORIO, PMHNP-BC's National Provider Identifier (NPI) is 1619557584, issued on 04/13/2021.
How many Psychiatric/Mental Health Nurse Practitioner providers are there in the US?
There are 39,953 Psychiatric/Mental Health Nurse Practitioner providers across 54 states in the US. The average Psychiatric/Mental Health Nurse Practitioner provider writes 927 Medicare Part D claims per year.
What drugs does NICHOLAS IORIO, PMHNP-BC prescribe most often?
Based on 2023 Medicare Part D data, NICHOLAS IORIO, PMHNP-BC's most frequently prescribed drugs include Escitalopram Oxalate, Sertraline Hcl, Alprazolam. This reflects Medicare Part D prescriptions only and does not include commercial insurance or other payer types.
Does NICHOLAS IORIO, PMHNP-BC accept Medicare?
NICHOLAS IORIO, PMHNP-BC appears in CMS Medicare data with 289 Part D claims and 26 Medicare beneficiaries in 2023. Contact the provider's office directly to confirm current Medicare enrollment and accepted plans.
How can I verify NICHOLAS IORIO, PMHNP-BC's credentials?
NICHOLAS IORIO, PMHNP-BC's NPI is 1619557584 with credentials PMHNP-BC. You can verify this through the NPPES NPI Registry, check state medical board records, and confirm board certification through the ABMS or AOA.

Data Sources

Provider Directory
CMS National Plan and Provider Enumeration System (NPPES), download.cms.gov/nppes, updated monthly. Contains NPI, specialty, credentials, and practice location.
Specialty Classification
NUCC Health Care Provider Taxonomy (nucc.org), the industry standard for classifying provider specialties in Medicare and Medicaid billing.
Prescribing Data
CMS Medicare Part D Prescriber Public Use File (2023). Includes claims, drug costs, beneficiaries, and opioid prescribing rates.
Limitations
Provider data is self-reported to CMS. Prescribing data reflects Medicare Part D only and does not include commercial insurance, Medicaid, or cash prescriptions. Claims below 11 beneficiaries are suppressed by CMS for privacy.

See our complete data methodology for details on how we collect and process government data.

Data as of April 2026 (NPPES) / 2023 (Medicare Part D). Source: Centers for Medicare & Medicaid Services (CMS).

Disclaimer: Data from CMS NPPES and Medicare Part D. PlainDoctor does not rate or rank providers. Provider information is self-reported and may not be current. Always verify information directly with the provider. About · Methodology