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Omar Viswanath, M.D.

NPI 1669813994ActiveIndividual· Anesthesiology, Pain Medicine· Phoenix, AZ

Anesthesiology, Pain Medicine (M.D.) in Phoenix, Arizona, trained at Creighton University School of Medicine (class of 2013). 343 Medicare patients in 2024, $292,048 paid; all of their 533 Part D prescriptions were generic. Nalu Medical, Inc. was the largest of 8 companies reporting payments in 2025, $19,728 in all, mostly consulting fees.

Overview

NPI1669813994
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedJul 15, 2013
Last updated in NPPESApr 8, 2024
Certified by providerApr 8, 2024

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 - Pain Management (AZ)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients343
Services billed14,511 across 78 procedure codes
Paid by Medicare$292,048

Part D prescriptions in 2024

Prescriptions (claims)533 · 561 30-day fills
Patients183
Total drug cost$8,406
Generic share100% of claims

Medicare sources and data years

Education and affiliations

Medical schoolCreighton University School of Medicine
Graduation year2013
Medicare specialtyPain Management
Secondary specialtiesAnesthesiology
TelehealthOffers telehealth

Medical group

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$19,728 · 61 payments from 8 companies
  • 2024$2,927 · 49 payments from 7 companies

Top paying companies in 2025

What the 2025 payments were for

  • Consulting Fee$17,365 · 21 payments
  • Food and Beverage$1,762 · 36 payments
  • Travel and Lodging$600.23 · 4 payments

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

Other pain medicine anesthesiologists in Phoenix

All 57 pain medicine anesthesiologists in Phoenix · All pain medicine anesthesiologists in Arizona