Maria Diaz, NP
NPI 1962281899 · Family Nurse Practitioner · Islip, NY
Enrolled with Medicare as Order and Referring Only - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Maria Diaz, NP is a Family Nurse Practitioner provider in Islip, NY (NPI 1962281899).
Provider details
- NPI number
- 1962281899
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- NP
- Sex
- Female
- Sole proprietor
- No
- License
- 352387 (NY)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
2 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amlodipine Besylate | 17 | 11 |
| Atorvastatin Calcium | 17 | 13 |
| Omeprazole | 14 | — |
| Alendronate Sodium | 14 | — |
| Furosemide | 12 | — |
| Levothyroxine Sodium | 12 | — |
| Losartan Potassium | 12 | — |
Practice location
Mailing address
Registry dates
- Enumerated
- 2023-09-28
- Last updated
- 2023-09-28
- Certified
- 2023-09-28
Frequently asked questions
- What is Maria Diaz's NPI number?
- Maria Diaz's National Provider Identifier (NPI) is 1962281899, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Maria Diaz's specialty?
- Maria Diaz is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Maria Diaz located?
- Maria Diaz's practice location on file with NPPES is 148 Islip Ave Ste 27, Islip, NY 11751-3226.
- What is Maria Diaz's phone number?
- The practice phone number listed in the NPPES registry for Maria Diaz is (631) 650-6580.
- Does Maria Diaz accept Medicare?
- Maria Diaz is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Maria Diaz's NPI active?
- Yes — Maria Diaz's NPI (1962281899) is active in the NPPES registry as of the last update on 2023-09-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.