NPPES file of Aug 9, 2026

Patricia L. Giarrusso, PMHNP

Psychiatric/Mental Health Nurse Practitioner · Johnston, RI

Patricia L. Giarrusso, PMHNP is a psychiatric/mental health nurse practitioner with a practice address in Johnston, Rhode Island, and NPI 1538492525, issued on Sep 9, 2009. Check the license (Rhode Island APRN01699, as entered in NPPES) with the Rhode Island 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
1538492525
Name
Patricia L. Giarrusso
Credential
PMHNP
Primary taxonomy
Psychiatric/Mental Health Nurse Practitioner 363LP0808X
License numbers
APRN01699 RI
768894 TX
Self-reported in NPPES; status is on the state search
Practice location
1126 Hartford Ave, Johnston, RI 02919
Phone
(401) 351-2750
Enumerated
Sep 9, 2009
Record last updated
Jul 13, 2023
Fax
(013) 516-6134
Medicare enrollment
Enrolled (PECOS I20171228000602); 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 1126 Hartford Ave

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

  1. Joseph Albertario, PMHNP-BCPsychiatric/Mental Health Nurse Practitioner1326424466
  2. Luke Bertrand, DDSStudent in an Organized Health Care Education/Training Program1952193302
  3. Tiffany BrownClinical Social Worker1922676055
  4. Jennifer Caffrey, LICSWClinical Social Worker1285113571
  5. Sarah CarterClinical Social Worker1013761782
  6. Michael Casey, PHARMD, CDOEPharmacist1265928345

Verify Patricia L. Giarrusso in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Rhode Island board licenses this profession
    Search for license APRN01699
    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 Rhode Island 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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2.5 times the Medicare Part D claims of the average psychiatric/mental health nurse practitioner in 2024

2,297 Medicare Part D claims for 126 beneficiaries, against an average of 906 among the 30,717 providers of this specialty who prescribed in Part D. Brand-name drugs were 4% of claims.

  1. Patricia Giarrusso2,297
  2. Specialty average906

Most prescribed

  1. Clonazepam209 claims
  2. Dextroamphetamine-Amphetamine200 claims
  3. Lamotrigine172 claims
  4. Quetiapine Fumarate139 claims
  5. Fluoxetine Hcl118 claims
  6. Bupropion Xl86 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.

Bills Medicare through one group practice

  1. Tri-County Community Action AgencyJohnston, RI

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

Patricia L. Giarrusso among 296 psychiatric/mental health nurse practitioner records in Rhode Island

Patricia L. Giarrusso, PMHNP is one of 296 psychiatric/mental health nurse practitioner records with a practice address in Rhode Island. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2009, is newer than 13% of them.

  • NPI issued2009 · 13% of these records are older, 87% newer
  • In a Medicare fileYes · 79% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated2008 · median 2021 among the 188 with a school on file
  • Record last updated2023 · 17% 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 Rhode Island practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Psychiatric/Mental Health Nurse Practitioner providers in Rhode Island

There are 296 psychiatric/mental health nurse practitioner records in Rhode Island.

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

  1. Judith AdewuyiJohnston, RI 029191013835214
  2. Joseph Albertario, PMHNP-BCJohnston, RI 029191326424466
  3. Hannah Creta, PMHNPJohnston, RI 029191265040745
  4. Alexandra Mackenzie, APRN, PMHNP-BCJohnston, RI 029191164256376
  5. Eniayo EgberongbeCranston, RI 029201295263515
  6. Katherine Loffredo, MSN, APRN, PMHNP-BCCranston, RI 029201750992319
  7. Tanille Louis, MS, PHMNP-BCCranston, RI 029201922541465
  8. Gloria Mazza, NP-CCranston, RI 029201497157572

Common questions

What is Patricia L. Giarrusso, PMHNP's NPI number?

Patricia L. Giarrusso, PMHNP's National Provider Identifier (NPI) is 1538492525, issued on Sep 9, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Patricia L. Giarrusso, PMHNP located?

The NPPES record lists a practice address at 1126 Hartford Ave, Johnston, RI, 02919. Phone: (401) 351-2750. Providers update this record themselves, so call before visiting.

How can I verify Patricia L. Giarrusso, PMHNP's license?

NPPES lists Rhode Island license number APRN01699, as entered by the provider. Search the Rhode Island board that licenses this profession; the NPPES record confirms identity only.

How much does Patricia L. Giarrusso, PMHNP prescribe under Medicare Part D?

In 2024, Patricia L. Giarrusso, PMHNP had 2,297 Medicare Part D claims for 126 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.