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GRETEL VALDES ALFONSO MSN
NPI 1619770336
Nurse Practitioner - Family in Miami, FL

Active since March 28, 2025PECOS EnrolledAccepts Medicare Assignment
8145 NW 7TH ST APT 404, MIAMI, FL 33126(786) 217-7970 Get Directions Write a Review

NPPES record last updated: March 28, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

About Gretel Valdes Alfonso Msn NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

GRETEL VALDES ALFONSO MSN (NPI 1619770336) is an individual family provider in Miami, Florida, licensed in Florida (11038505) and active in the NPI registry since March 2025. She is enrolled in Medicare PECOS and is a graduate of Other (2024).

NPPES Registry Identity

NPI1619770336
Entity TypeIndividualFemale
Primary Taxonomy363LF0000X
Provider Legal NameGRETEL VALDES ALFONSOCredential: MSN
Location Address8145 NW 7TH ST APT 404Miami, FL 33126-4096
Mailing Address8145 Nw 7th St Apt 404Miami, FL 33126-4096 · (786) 217-7970
Phone(786) 217-7970
Sole ProprietorYes
Medical School CMSOtherGraduated 2024
Enumeration DateMarch 28, 2025
NPPES CertifiedMarch 28, 2025
✔ NPI 1619770336 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Practitioner · FamilyPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code363LF0000X
License✔ Licensed in FL · 11038505
8145 NW 7TH ST APT 404, Miami, FL 33126
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Gretel Valdes Alfonso Msn is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID8426567405
PECOS Enrollment IDI20250602001367
Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Gretel Valdes Alfonso reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Vitalmd Group Holding LLC
6.6 mi
Obstetrics & Gynecology
3225 AVIATION AVE, SUITE #700
Miami, FL 33133
  • Reassigned Medicare billing, Florida enrollment
  • 716 clinicians in this Medicare group
NPI 1871572032 (305) 273-4641

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 33126 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$96.13 typical visit price
range $60.92 – $187.05
Typical copayment $24.03 (range $15.23 – $46.76)
Most-billed visit code 99203
Established Patient
$107.17 typical visit price
range $18.99 – $150.24
Typical copayment $26.79 (range $4.74 – $37.56)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Gretel Valdes Alfonso's NPI number?

The NPI number for Gretel Valdes Alfonso is 1619770336. It was assigned to this individual provider in the NPPES registry on March 28, 2025.

Where is Gretel Valdes Alfonso located?

Gretel Valdes Alfonso practices at 8145 NW 7th St Apt 404, Miami, FL 33126. The listed phone number is (786) 217-7970.

What is Gretel Valdes Alfonso's specialty?

The primary specialty registered for this NPI is Nurse Practitioner, specializing in Family, with taxonomy code 363LF0000X.

Is Gretel Valdes Alfonso enrolled in Medicare?

Yes. Gretel Valdes Alfonso is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Gretel Valdes Alfonso's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Gretel Valdes Alfonso reassigns Medicare benefits to Vitalmd Group Holding LLC (Miami, FL). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Gretel Valdes Alfonso's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Gretel Valdes Alfonso was last updated on March 28, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.