NPPES file of Aug 9, 2026

Katie Dympna Patricia Iadonisi, MSN, A-GNP-C, OCN

Adult Health Nurse Practitioner · South Weymouth, MA

Katie Dympna Patricia Iadonisi, MSN, A-GNP-C, OCN is an adult health nurse practitioner with a practice address in South Weymouth, Massachusetts, and NPI 1639808603, issued on Jun 6, 2022. Check the license (Massachusetts RN2361573, as entered in NPPES) with the Massachusetts 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
1639808603
Name
Katie Dympna Patricia Iadonisi
Credential
MSN, A-GNP-C, OCN
Primary taxonomy
Adult Health Nurse Practitioner 363LA2200X
License numbers
RN2361573 MA
5016311 NC
Self-reported in NPPES; status is on the state search
Practice location
101 Columbian St, South Weymouth, MA 02190
Phone
(781) 624-4800
Enumerated
Jun 6, 2022
Record last updated
Feb 2, 2023
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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8 nearest adult health nurse practitioner records → All 1,465 in Massachusetts → Look up another NPI →

Also registered at 101 Columbian St

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

  1. Jennifer Calzarette, PAPhysician Assistant1063145696
  2. Kelly Casey, CNPFamily Nurse Practitioner1720695935
  3. Lyndsay Caulfield, DNP, FNP-BCFamily Nurse Practitioner1053043117
  4. Deepak Chander, M.D.Hematology & Oncology Physician1659666261
  5. Katherine Cushing, LICSWClinical Social Worker1912484080
  6. Katelyn Dorney, MDObstetrics & Gynecology Physician1972913267

Verify Katie Dympna Patricia Iadonisi in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich Massachusetts board licenses this profession
    Search for license RN2361573    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 Massachusetts license search

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60% fewer Medicare Part D claims than the average adult health nurse practitioner in 2024

516 Medicare Part D claims for 212 beneficiaries, against an average of 1,280 among the 16,937 providers of this specialty who prescribed in Part D. Brand-name drugs were 13% of claims. 47 claims were for opioids.

  1. Katie Iadonisi516
  2. Specialty average1,280

Most prescribed

  1. Letrozole51 claims
  2. Tamoxifen Citrate35 claims
  3. Anastrozole33 claims
  4. Ondansetron Odt25 claims
  5. Exemestane24 claims
  6. Omeprazole24 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.

Industry payments in 2024: $113.18

5 payments; by number, the most common kind was food and beverage; the largest payer was Taiho Oncology, Inc. The 12,291 providers of this specialty with any payment received $946.40 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Katie Iadonisi$113.18
  2. Specialty average$946.40

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Katie Dympna Patricia Iadonisi among 1,465 adult health nurse practitioner records in Massachusetts

Katie Dympna Patricia Iadonisi, MSN, A-GNP-C, OCN is one of 1,465 adult health nurse practitioner records with a practice address in Massachusetts. 61% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 94% of them.

  • NPI issued2022 · 94% of these records are older, 4% newer
  • In a Medicare fileYes · 61% of these records are
  • In the CMS Doctors and Clinicians fileNo · 43% of these records are
  • Record last updated2023 · 73% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LA2200X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

5 adult health nurse practitioner records list a practice address in South Weymouth

They are 5 of the 445 NPPES records with a practice address in South Weymouth, and 1,465 adult health nurse practitioner records in Massachusetts.

All 1,465 in Massachusetts → Every provider in South Weymouth → Adult Health Nurse Practitioner nationwide →

The 8 adult health nurse practitioner records with the nearest ZIP codes

  1. Patrick Bjork, MS, AGNP-C, RNWeymouth, MA 021901649891276
  2. Ann Caccavale, N.P.Weymouth, MA 021901871697318
  3. Carolyn Delano, NPSouth Weymouth, MA 021901215085923
  4. Lauren FitzgeraldWeymouth, MA 021901649198870
  5. Hannah Frenn, CNPWeymouth, MA 021901720545056
  6. Leslie Frodema, NPWeymouth, MA 021901083451223
  7. Alexandra Haggerty, N.P.Weymouth, MA 021901881136901
  8. Diane King, NPSouth Weymouth, MA 021901750436721

Common questions

What is Katie Dympna Patricia Iadonisi, MSN, A-GNP-C, OCN's NPI number?

Katie Dympna Patricia Iadonisi, MSN, A-GNP-C, OCN's National Provider Identifier (NPI) is 1639808603, issued on Jun 6, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Katie Dympna Patricia Iadonisi, MSN, A-GNP-C, OCN located?

The NPPES record lists a practice address at 101 Columbian St, South Weymouth, MA, 02190. Phone: (781) 624-4800. Providers update this record themselves, so call before visiting.

How can I verify Katie Dympna Patricia Iadonisi, MSN, A-GNP-C, OCN's license?

NPPES lists Massachusetts license number RN2361573, as entered by the provider. Search the Massachusetts board that licenses this profession; the NPPES record confirms identity only.

How much does Katie Dympna Patricia Iadonisi, MSN, A-GNP-C, OCN prescribe under Medicare Part D?

In 2024, Katie Dympna Patricia Iadonisi, MSN, A-GNP-C, OCN had 516 Medicare Part D claims for 212 beneficiaries; the average among adult health nurse practitioner prescribers was 1,280. 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.