NPPES file of Aug 9, 2026

Maria Diaz, NP

Family Nurse Practitioner · Islip, NY

Maria Diaz, NP is a family nurse practitioner with a practice address in Islip, New York, and NPI 1962281899, issued on Sep 28, 2023. Check the license (New York 352387, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1962281899
Name
Maria Diaz
Credential
NP
Primary taxonomy
Family Nurse Practitioner 363LF0000X
License number
352387 NY
Self-reported in NPPES; status is on the state search
Practice location
148 Islip Ave Ste 27, Islip, NY 11751
Phone
(631) 650-6580
Enumerated
Sep 28, 2023
Record last updated
Sep 28, 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 family nurse practitioner records → All 14,805 in New York → Look up another NPI →

Also registered at 148 Islip Ave Ste 27

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

  1. Juan LemaFamily Nurse Practitioner1164317871

Verify Maria 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 352387    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

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62% fewer Medicare Part D claims than the average family nurse practitioner in 2024

495 Medicare Part D claims for 176 beneficiaries, against an average of 1,305 among the 140,557 providers of this specialty who prescribed in Part D.

  1. Maria Diaz495
  2. Specialty average1,305

Most prescribed

  1. Amlodipine Besylate17 claims
  2. Atorvastatin Calcium17 claims
  3. Alendronate Sodium14 claims
  4. Omeprazole14 claims
  5. Albuterol Sulfate Hfa12 claims
  6. Furosemide12 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.

Maria Diaz among 14,805 family nurse practitioner records in New York

Maria Diaz, NP 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 2023, is newer than 76% of them.

  • NPI issued2023 · 76% of these records are older, 17% newer
  • In a Medicare fileYes · 68% of these records are
  • In the CMS Doctors and Clinicians fileNo · 49% of these records are
  • Record last updated2023 · 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).

4 family nurse practitioner records list a practice address in Islip

They are 4 of the 356 NPPES records with a practice address in Islip, and 14,805 family nurse practitioner records in New York.

All 14,805 in New York → Every provider in Islip → Family Nurse Practitioner nationwide →

The 8 family nurse practitioner records with the nearest ZIP codes

  1. Juan LemaIslip, NY 117511164317871
  2. Danielle Thomas, FNPIslip, NY 117511114700549
  3. Danielle Walthers, NPIslip, NY 117511174398085
  4. Aanze Abraham, N.PJericho, NY 117531346644382
  5. Kelly AmayaIslandia, NY 117491548801020
  6. Kristina BalsanoIslandia, NY 117491538840012
  7. Jessica Brimer, F.N.PIslandia, NY 117491508298431
  8. Elizabeth Cohen, FNP-C , PMHNP-BCIslandia, NY 117491295150050

Common questions

What is Maria Diaz, NP's NPI number?

Maria Diaz, NP's National Provider Identifier (NPI) is 1962281899, issued on Sep 28, 2023. An NPI identifies a provider in billing; it is not a license.

Where is Maria Diaz, NP located?

The NPPES record lists a practice address at 148 Islip Ave Ste 27, Islip, NY, 11751. Phone: (631) 650-6580. Providers update this record themselves, so call before visiting.

How can I verify Maria Diaz, NP's license?

NPPES lists New York license number 352387, as entered by the provider. Search the New York board that licenses this profession; the NPPES record confirms identity only.

How much does Maria Diaz, NP prescribe under Medicare Part D?

In 2024, Maria Diaz, NP had 495 Medicare Part D claims for 176 beneficiaries; the average among family nurse practitioner prescribers was 1,305. 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.