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Estela Rodriguez Alonso, MD

NPI 1134616691ActiveIndividual· Internal Medicine· Stamford, CT

Internal Medicine (MD) with Shannon Clinic and 1 other group, practicing in Stamford, Connecticut. Their prescriptions cost Medicare Part D more than their services did: $437,399 for 4,142 claims, against $29,611 paid for services in 2024. Novo Nordisk Inc was the largest of 16 companies reporting payments in 2025, $781.26 in all, mostly food and beverage. Lists HCA Houston Healthcare Conroe and 1 other hospital as hospital affiliations.

Overview

NPI1134616691
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedApr 19, 2018
Last updated in NPPESAug 3, 2021
Certified by providerAug 3, 2021

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine Primary207R00000XT2484TX

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 (TX)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients114
Services billed504 across 40 procedure codes
Paid by Medicare$29,611

Part D prescriptions in 2024

Prescriptions (claims)4,142 · 9,652 30-day fills
Patients381
Total drug cost$437,399
Generic share85% of claims

Medicare sources and data years

Education and affiliations

Graduation year2018
Medicare specialtyInternal Medicine
TelehealthOffers telehealth

Medical groups

Hospital affiliations

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$781.26 · 37 payments from 16 companies
  • 2024$1,813 · 102 payments from 21 companies

Top paying companies in 2025

What the 2025 payments were for

  • Food and Beverage$781.26 · 37 payments

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

Other internal medicine physicians in Stamford

All 150 internal medicine physicians in Stamford · All internal medicine physicians in Connecticut