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Ryan Constancio Alonzo

NPI 1184253445ActiveIndividual· Internal Medicine· Denver, CO

Internal Medicine in Denver, Colorado, trained at University of Colorado School of Medicine, Denver (class of 2023). Part D covered 1,832 prescriptions written in 2024, 78% of them generic. Baxter Healthcare reported $122.40 in payments in 2025, mostly food and beverage.

Overview

NPI1184253445
StatusActive
Entity typeIndividual
Sole proprietorNo
NPI issuedApr 7, 2020
Last updated in NPPESMar 31, 2025
Certified by providerMar 31, 2025

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine Primary207R00000XDR.0070181CO

About license numbers in NPPES

Exclusion screening

ListResultDetails
HHS-OIG LEIE · Nov 10, 2026No matchChecked by NPI and by name + state
North Carolina Medicaid · Nov 11, 2026No match—
New York OMIG · Nov 11, 2026No match—
Ohio Medicaid · Nov 11, 2026No match—
Pennsylvania Medicheck · Nov 11, 2026No match—
Washington HCA · Nov 11, 2026No match—

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

Medicare

Enrollment (PECOS)Enrolled Practitioner - Internal Medicine (CO)

Part D prescriptions in 2024

Prescriptions (claims)1,832 · 3,209 30-day fills
Patients229
Total drug cost$205,460
Generic share78% of claims

Medicare sources and data years

Education and affiliations

Medical schoolUniversity of Colorado School of Medicine, Denver
Graduation year2023
Medicare specialtyInternal Medicine

Medical group

Hospital affiliation

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$122.40 · 1 payment from 1 company
  • 2024$38.35 · 1 payment from 1 company

Top paying companies in 2025

CompanyAmountPayments
Baxter Healthcare$122.401

What the 2025 payments were for

  • Food and Beverage$122.40 · 1 payment

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

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