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Teodor Duro, MD

NPI 1780180315ActiveIndividual· Internal Medicine, Endocrinology, Diabetes & Metabolism· Fairfield, CA

Internal Medicine, Endocrinology, Diabetes & Metabolism (MD) with Unm Medical Group Inc and 1 other group, practicing in Fairfield, California. Their prescriptions cost Medicare Part D more than their services did: $166,660 for 479 claims, against $12,942 paid for services in 2024. Sanofi-Aventis U.S. LLC was the largest of 8 companies reporting payments in 2025, $4,893 in all, mostly speaking and faculty fees. Lists Northbay Medical Center and 1 other hospital as hospital affiliations.

Overview

NPI1780180315
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedApr 3, 2018
Last updated in NPPESFeb 25, 2026
Certified by providerFeb 25, 2026

Specialties and licenses

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 - Endocrinology (CA); Practitioner - Internal Medicine (NM)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients101
Services billed219 across 14 procedure codes
Paid by Medicare$12,942

Part D prescriptions in 2024

Prescriptions (claims)479 · 877 30-day fills
Patients99
Total drug cost$166,660
Generic share52% of claims

Medicare sources and data years

Education and affiliations

Graduation year2018
Medicare specialtyEndocrinology
TelehealthOffers telehealth

Medical groups

Hospital affiliations

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$4,893 · 16 payments from 8 companies
  • 2024$451.01 · 6 payments from 4 companies

Top paying companies in 2025

CompanyAmountPayments
Sanofi-Aventis U.S. LLC$3,7133
Chiesi USA, Inc.$300.001
Medtronic, Inc.$279.624
Amgen Inc.$148.071
Novo Nordisk Inc$137.373

What the 2025 payments were for

  • Compensation for services other than consulting, including serving as faculty or as a speaker at a venue other than a continuing education program$3,492 · 1 payment
  • Food and Beverage$1,101 · 14 payments
  • Honoraria$300.00 · 1 payment

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

Other endocrinologists in Fairfield

All endocrinologists in California