Grace Mazzarella, APRN
NPI 1861865677 · Family Nurse Practitioner · Windermere, FL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Grace Mazzarella, APRN is a Family Nurse Practitioner provider in Windermere, FL (NPI 1861865677).
Provider details
- NPI number
- 1861865677
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APRN
- Sex
- Female
- Sole proprietor
- Yes
- License
- ARNP9353896 (FL)
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
10 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
3 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 · 12 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Ketoconazole | 94 | 56 |
| Hydrocortisone | 63 | 40 |
| Betamethasone Dipropionate | 43 | 26 |
| Triamcinolone Acetonide | 43 | 28 |
| Doxycycline Hyclate | 33 | 17 |
| Minoxidil | 23 | — |
| Mupirocin | 17 | 13 |
| Fluocinonide | 15 | — |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$2,404 across 132 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 (2)
- 8318 Mills DrMiami, FL 33183-4806Phone: (786) 472-2076
- 7932 W Sand Lake Rd Ste 202Orlando, FL 32819-7299Phone: (407) 846-7546
Registry dates
- Enumerated
- 2015-11-03
- Last updated
- 2020-01-22
- Certified
- 2020-01-22
Frequently asked questions
- What is Grace Mazzarella's NPI number?
- Grace Mazzarella's National Provider Identifier (NPI) is 1861865677, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Grace Mazzarella's specialty?
- Grace Mazzarella is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Grace Mazzarella located?
- Grace Mazzarella's practice location on file with NPPES is 4750 the Grove Dr Ste 280, Windermere, FL 34786-8427.
- What is Grace Mazzarella's phone number?
- The practice phone number listed in the NPPES registry for Grace Mazzarella is (407) 456-7179.
- Does Grace Mazzarella accept Medicare?
- Grace Mazzarella is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Grace Mazzarella's NPI active?
- Yes — Grace Mazzarella's NPI (1861865677) is active in the NPPES registry as of the last update on 2020-01-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.