Danielle Duffy
NPI 1104570308 · Adult Health Nurse Practitioner · Port Washington, NY
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Danielle Duffy is a Adult Health Nurse Practitioner provider in Port Washington, NY (NPI 1104570308).
Provider details
- NPI number
- 1104570308
- Entity type
- Individual
- Primary specialty
- Adult Health Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Sex
- Female
- Sole proprietor
- Yes
- License
- 310281 (NY)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure33% of score
4 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
1 documented practice location
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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 · 47 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Apixabanbrand: Eliquis | 522 | 151 |
| Atorvastatin Calcium | 455 | 190 |
| Amlodipine Besylate | 428 | 182 |
| Metoprolol Succinate | 422 | 183 |
| Carvedilol | 305 | 117 |
| Rosuvastatin Calcium | 303 | 119 |
| Furosemide | 243 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$589 across 18 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2022-02-07
- Last updated
- 2022-08-05
- Certified
- 2022-05-10
Frequently asked questions
- What is Danielle Duffy's NPI number?
- Danielle Duffy's National Provider Identifier (NPI) is 1104570308, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Danielle Duffy's specialty?
- Danielle Duffy is listed in the NPPES registry with a primary specialty of Adult Health Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Danielle Duffy located?
- Danielle Duffy's practice location on file with NPPES is 135b Main St, Port Washington, NY 11050-2801.
- What is Danielle Duffy's phone number?
- The practice phone number listed in the NPPES registry for Danielle Duffy is (516) 532-4145.
- Does Danielle Duffy accept Medicare?
- Danielle Duffy is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Danielle Duffy's NPI active?
- Yes — Danielle Duffy's NPI (1104570308) is active in the NPPES registry as of the last update on 2022-08-05.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.