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Daniel W. Chang, MD

NPI 1225094808ActiveIndividual· Obstetrics & Gynecology· Reno, NV

Obstetrics & Gynecology (MD) in Reno, Nevada, trained at University of Nevada School of Medicine (class of 1990). Mostly services rather than prescriptions: Medicare paid $3,895 for 26 patients in 2024, with only 36 Part D claims. Intuitive Surgical, Inc. was the largest of 2 companies reporting payments in 2025, $2,316 in all, mostly education.

Overview

NPI1225094808
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedApr 24, 2006
Last updated in NPPESApr 8, 2024
Certified by providerApr 8, 2024

Specialties and licenses

TaxonomyCodeLicenseState
Obstetrics & Gynecology Primary207V00000X25429NV
Obstetrics & Gynecology207V00000X94212NM

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 - Obstetrics/Gynecology (NM); Practitioner - Obstetrics/Gynecology (NV)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients26
Services billed41 across 20 procedure codes
Paid by Medicare$3,895

Part D prescriptions in 2024

Prescriptions (claims)36 · 94 30-day fills
Patients19
Total drug cost$3,402
Generic share81% of claims

Medicare sources and data years

Education and affiliations

Medical schoolUniversity of Nevada School of Medicine
Graduation year1990
Medicare specialtyObstetrics/Gynecology

Medical groups

Hospital affiliation

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$2,316 · 5 payments from 2 companies
  • 2024$7.77 · 1 payment from 1 company

Top paying companies in 2025

CompanyAmountPayments
Intuitive Surgical, Inc.$2,3124
Mayne Pharma Commercial LLC$3.851

What the 2025 payments were for

  • Education$1,500 · 1 payment
  • Travel and Lodging$812.36 · 3 payments
  • Food and Beverage$3.85 · 1 payment

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

Other OB-GYNs in Reno

All 69 OB-GYNs in Reno · All OB-GYNs in Nevada