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Rowen Gumpas Diano, MD

NPI 1992862585ActiveIndividual· Internal Medicine, Geriatric Medicine· Montclair, NJ

Internal Medicine, Geriatric Medicine (MD) in Montclair, New Jersey, licensed in NJ, with an NPI issued in January 2007. Their prescriptions cost Medicare Part D more than their services did: $1,329,669 for 12,112 claims, against $422,491 paid for services in 2024. Otsuka America Pharmaceutical, Inc. reported $120.29 in payments in 2025, mostly food and beverage. Lists Cooperman Barnabas Medical Center and 1 other hospital as hospital affiliations.

Overview

NPI1992862585
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedJan 2, 2007
Last updated in NPPESAug 1, 2019

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine, Geriatric Medicine Primary207RG0300X25MA0693000NJ

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 - Geriatric Medicine (NJ)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients325
Services billed4,267 across 34 procedure codes
Paid by Medicare$422,491

Part D prescriptions in 2024

Prescriptions (claims)12,112 · 16,470 30-day fills
Patients437
Total drug cost$1,329,669
Generic share84% of claims

Medicare sources and data years

Education and affiliations

Graduation year1983
Medicare specialtyGeriatric Medicine
Secondary specialtiesHospice/Palliative Care, Internal Medicine

Hospital affiliations

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$120.29 · 1 payment from 1 company
  • 2024$518.13 · 6 payments from 4 companies

Top paying companies in 2025

CompanyAmountPayments
Otsuka America Pharmaceutical, Inc.$120.291

What the 2025 payments were for

  • Food and Beverage$120.29 · 1 payment

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

Other Internal Medicine, Geriatric Medicine providers in Montclair

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