Gretel Valdes Alfonso, MSN
NPI 1619770336 · Family Nurse Practitioner · Miami, FL
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Gretel Valdes Alfonso, MSN is a Family Nurse Practitioner provider in Miami, FL (NPI 1619770336).
Provider details
- NPI number
- 1619770336
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- MSN
- Sex
- Female
- Sole proprietor
- Yes
- License
- 11038505 (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 tenure38% of score
1 yr 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.
Practice location
Mailing address
Registry dates
- Enumerated
- 2025-03-28
- Last updated
- 2025-03-28
- Certified
- 2025-03-28
Frequently asked questions
- What is Gretel Valdes Alfonso's NPI number?
- Gretel Valdes Alfonso's National Provider Identifier (NPI) is 1619770336, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Gretel Valdes Alfonso's specialty?
- Gretel Valdes Alfonso is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Gretel Valdes Alfonso located?
- Gretel Valdes Alfonso's practice location on file with NPPES is 8145 Nw 7th St Apt 404, Miami, FL 33126-4096.
- What is Gretel Valdes Alfonso's phone number?
- The practice phone number listed in the NPPES registry for Gretel Valdes Alfonso is (786) 217-7970.
- Does Gretel Valdes Alfonso accept Medicare?
- Gretel Valdes Alfonso is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Gretel Valdes Alfonso's NPI active?
- Yes — Gretel Valdes Alfonso's NPI (1619770336) is active in the NPPES registry as of the last update on 2025-03-28.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.