Skip to content

Warren Reyes Ho, MD

NPI 1073721965ActiveIndividual· Internal Medicine, Nephrology· Prescott, AZ

Internal Medicine, Nephrology (MD) in Prescott, Arizona, trained at University of Missouri, Kansas City, School of Medicine (class of 2004). Their prescriptions cost Medicare Part D more than their services did: $1,338,171 for 2,574 claims, against $198,188 paid for services in 2024. Amgen Inc. was the largest of 13 companies reporting payments in 2025, $1,196 in all, mostly food and beverage.

Overview

NPI1073721965
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedMay 21, 2007
Last updated in NPPESJan 28, 2019

Specialties and licenses

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 10, 2026No match—
New York OMIG · Nov 10, 2026No match—
Ohio Medicaid · Nov 10, 2026No match—
Pennsylvania Medicheck · Nov 10, 2026No match—
Washington HCA · Nov 10, 2026No match—

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

Medicare

Enrollment (PECOS)Enrolled Practitioner - Nephrology (AZ)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients748
Services billed2,555 across 18 procedure codes
Paid by Medicare$198,188

Part D prescriptions in 2024

Prescriptions (claims)2,574 · 5,745 30-day fills
Patients497
Total drug cost$1,338,171
Generic share90% of claims

Medicare sources and data years

Education and affiliations

Medical schoolUniversity of Missouri, Kansas City, School of Medicine
Graduation year2004
Medicare specialtyNephrology
Secondary specialtiesInternal Medicine
TelehealthOffers telehealth

Medical group

Hospital affiliations

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$1,196 · 48 payments from 13 companies
  • 2024$1,078 · 56 payments from 13 companies

Top paying companies in 2025

What the 2025 payments were for

  • Food and Beverage$1,180 · 47 payments
  • Education$16.05 · 1 payment

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

Other Internal Medicine, Nephrology providers in Prescott

All Internal Medicine, Nephrology providers in Arizona →