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Guillermo E. Calderon, MD

NPI 1669478939ActiveIndividual· Obstetrics & Gynecology, Gynecology· St Petersburg, FL

Obstetrics & Gynecology, Gynecology (MD) in St Petersburg, Florida, trained at University of Puerto Rico School of Medicine (class of 1984). 46 Medicare patients in 2024, $4,908 paid; nearly all of their 195 Part D prescriptions were generic (93%). Astellas Pharma US Inc was the largest of 12 companies reporting payments in 2025, $372.62 in all, mostly food and beverage.

Overview

NPI1669478939
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedJun 22, 2005
Last updated in NPPESJul 7, 2023
Certified by providerJul 7, 2023

Specialties and licenses

TaxonomyCodeLicenseState
Obstetrics & Gynecology, Gynecology Primary207VG0400XME77531FL

About license numbers in NPPES

Exclusion screening

ListResultDetails
HHS-OIG LEIE · Oct 9, 2026No matchChecked by NPI and by name + state
North Carolina Medicaid · Nov 4, 2026No match—
New York OMIG · Nov 4, 2026No match—
Ohio Medicaid · Nov 4, 2026No match—
Pennsylvania Medicheck · Nov 4, 2026No match—
Washington HCA · Nov 4, 2026No match—

Official OIG search · How matching works ·Bulk check a roster

Medicare

Enrollment (PECOS)Enrolled Practitioner - Obstetrics/Gynecology (FL)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients46
Services billed88 across 16 procedure codes
Paid by Medicare$4,908

Part D prescriptions in 2024

Prescriptions (claims)195 · 263 30-day fills
Patients70
Total drug cost$6,934
Generic share93% of claims

Medicare sources and data years

Education and affiliations

Medical schoolUniversity of Puerto Rico School of Medicine
Graduation year1984
Medicare specialtyObstetrics/Gynecology

Medical group

Hospital affiliation

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$372.62 · 15 payments from 12 companies
  • 2024$309.92 · 14 payments from 9 companies

Top paying companies in 2025

What the 2025 payments were for

  • Food and Beverage$372.62 · 15 payments

Receiving payments does not imply wrongdoing. What Open Payments covers ·original records

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