NPPES file of Aug 9, 2026

Arlene L. Diaz, FNP

Family Nurse Practitioner · New Hyde Park, NY

Arlene L. Diaz, FNP is a family nurse practitioner with a practice address in New Hyde Park, New York, and NPI 1154823631, issued on Mar 1, 2018. Check the license (New York 342575, as entered in NPPES) with the New York 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1154823631
Name
Arlene L. Diaz
Credential
FNP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
342575 NY
Self-reported in NPPES; status is on the state search
Practice location
1 Dakota Dr, New Hyde Park, NY 11042
Phone
(516) 622-6000
Enumerated
Mar 1, 2018
Record last updated
Apr 17, 2019 (not updated in 7 years: call before relying on the address or phone)
Medicaid ID
279233800 FL
Medicare enrollment
Enrolled (PECOS I20190429001474); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
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 1 Dakota Dr

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

  1. Shaya Ansari, MDDiagnostic Radiology Physician1003851726
  2. Jeffrey Berger, M.D.Gastroenterology Physician1174526941
  3. Justin Chen, DOFamily Medicine Physician1245974146
  4. Jenny ChungFamily Medicine Physician1639631401
  5. Jenson Eapen, PA-CPhysician Assistant1285021766
  6. Amber Haq, MDFamily Medicine Physician1033649900

Verify Arlene L. Diaz in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersWhich New York board licenses this profession
    Search for license 342575
    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 New York 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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36% more Medicare Part D claims than the average family nurse practitioner in 2024

1,777 Medicare Part D claims for 384 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D. Brand-name drugs were 51% of claims.

  1. Arlene Diaz1,777
  2. Specialty average1,305

Most prescribed

  1. Albuterol Sulfate Hfa206 claims
  2. Trelegy Ellipta190 claims
  3. Prednisone157 claims
  4. Azelastine Hcl92 claims
  5. Breztri Aerosphere84 claims
  6. Breo Ellipta79 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.

The practice group's MIPS final score for 2023 (Medicare payment program): 84.1 of 100

The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.

  1. Qualityout of 100 · 30% of the final score78.1
  2. Costout of 100 · 30%69.1
  3. Promoting interoperabilityout of 100 · 25%100.0
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $3,857.82

114 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 99,489 providers of this specialty with any payment received $650.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Arlene Diaz$3,857.82
  2. Specialty average$650.95

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

Bills Medicare through one group practice

  1. Optum Medical Care PCMount Kisco, NY

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

Arlene L. Diaz among 14,805 family nurse practitioner records in New York

Arlene L. Diaz, FNP is one of 14,805 family nurse practitioner records with a practice address in New York. 68% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 47% of them.

  • NPI issued2018 · 47% of these records are older, 48% newer
  • In a Medicare fileYes · 68% of these records are
  • In the CMS Doctors and Clinicians fileYes · 49% of these records are
  • Graduated2017 · median 2019 among the 7,239 with a school on file
  • Record last updated2019 · 45% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 363LF0000X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

192 family nurse practitioner records list a practice address in New Hyde Park

They are 192 of the 4,217 NPPES records with a practice address in New Hyde Park, and 14,805 family nurse practitioner records in New York.

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Abidemi Akinkunmi, NPNew Hyde Park, NY 110421588991210
  2. Santpal Chawla, FNP-CNew Hyde Park, NY 110421336184381
  3. Chandra Dookran, FNPNew Hyde Park, NY 110421083919203
  4. Laura Galeotafiore, FNP-BCNew Hyde Park, NY 110421285940676
  5. Anna George, NPLake Success, NY 110421033231980
  6. Limone Gjoni, FNPNew Hyde Park, NY 110421942505532
  7. Tammi Hassell Blot, FNPNew Hyde Park, NY 110421063646578
  8. Kathy Hetherington, MLP-NURSE PRACTIONERNew Hyde Park, NY 110421043452253

Common questions

What is Arlene L. Diaz, FNP's NPI number?

Arlene L. Diaz, FNP's National Provider Identifier (NPI) is 1154823631, issued on Mar 1, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Arlene L. Diaz, FNP located?

The NPPES record lists a practice address at 1 Dakota Dr, New Hyde Park, NY, 11042. Phone: (516) 622-6000. Providers update this record themselves, so call before visiting.

How can I verify Arlene L. Diaz, FNP's license?

NPPES lists New York license number 342575, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.

How much does Arlene L. Diaz, FNP prescribe under Medicare Part D?

In 2024, Arlene L. Diaz, FNP had 1,777 Medicare Part D claims for 384 beneficiaries; the average among family nurse practitioner prescribers was 1,305. Part D covers Medicare prescriptions only.

What is Arlene L. Diaz, FNP's MIPS final score?

The 2023 MIPS final score is 84.1 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.

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.