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Peter Craig Kowalski, MD

NPI 1639107444ActiveIndividual· Psychiatry & Neurology, Psychiatry· Tucson, AZ

Psychiatry & Neurology, Psychiatry (MD) in Tucson, Arizona, trained at University of Oklahoma College of Medicine (class of 1983). Their prescriptions cost Medicare Part D more than their services did: $499,822 for 2,260 claims, against $11,549 paid for services in 2024. Alkermes, Inc. was the largest of 7 companies reporting payments in 2025, $271.74 in all, mostly food and beverage.

Overview

NPI1639107444
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedJun 29, 2006
Last updated in NPPESJul 11, 2025
Certified by providerJul 11, 2025

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 - Psychiatry (AZ); Practitioner - Psychiatry (OK)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients47
Services billed157 across 5 procedure codes
Paid by Medicare$11,549

Part D prescriptions in 2024

Prescriptions (claims)2,260 · 2,769 30-day fills
Patients109
Total drug cost$499,822
Generic share92% of claims

Medicare sources and data years

Education and affiliations

Medical schoolUniversity of Oklahoma College of Medicine
Graduation year1983
Medicare specialtyPsychiatry
TelehealthOffers telehealth

Medical group

Hospital affiliation

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$271.74 · 14 payments from 7 companies
  • 2024$1,810 · 116 payments from 12 companies

Top paying companies in 2025

What the 2025 payments were for

  • Food and Beverage$271.74 · 14 payments

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

Other psychiatrists in Tucson

All 313 psychiatrists in Tucson · All psychiatrists in Arizona