Diane Marchiafava, PA
NPI 1144368549 · Surgical Physician Assistant · Bay Shore, NY
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diane Marchiafava, PA is a Surgical Physician Assistant provider in Bay Shore, NY (NPI 1144368549).
Provider details
- NPI number
- 1144368549
- Entity type
- Individual
- Primary specialty
- Surgical Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA
- Sex
- Female
- Sole proprietor
- No
- License
- 006580-1 (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 tenure33% of score
19 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- 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 · 5 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Cephalexin | 37 | 37 |
| Tamsulosin Hcl | 16 | 16 |
| Oxybutynin Chloride | 14 | 14 |
| Ciprofloxacin Hcl | 12 | 12 |
| Oxycodone Hcl | 11 | 11 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$117 across 2 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
Additional practice locations (1)
- 10201 66th RdForest Hills, NY 11375-2029Phone: (718) 301-1954
Registry dates
- Enumerated
- 2007-02-01
- Last updated
- 2024-07-03
- Certified
- 2024-06-18
Frequently asked questions
- What is Diane Marchiafava's NPI number?
- Diane Marchiafava's National Provider Identifier (NPI) is 1144368549, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diane Marchiafava's specialty?
- Diane Marchiafava is listed in the NPPES registry with a primary specialty of Surgical Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Diane Marchiafava located?
- Diane Marchiafava's practice location on file with NPPES is 301 E Main St, Bay Shore, NY 11706-8408.
- What is Diane Marchiafava's phone number?
- The practice phone number listed in the NPPES registry for Diane Marchiafava is (631) 968-3895.
- Does Diane Marchiafava accept Medicare?
- Diane Marchiafava is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diane Marchiafava's NPI active?
- Yes — Diane Marchiafava's NPI (1144368549) is active in the NPPES registry as of the last update on 2024-07-03.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.