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Nikolaos Michalacos, MD

NPI 1083697932ActiveIndividual· Internal Medicine· Whitman, MA

Internal Medicine (MD) in Whitman, Massachusetts, trained at Boston University School of Medicine (class of 1995). Their prescriptions cost Medicare Part D more than their services did: $813,145 for 14,900 claims, against $224,127 paid for services in 2024. Phathom Pharmaceuticals, Inc. reported $6.70 in payments in 2025, mostly food and beverage.

Overview

NPI1083697932
StatusActive
Entity typeIndividual
CredentialMD
Sole proprietorNo
NPI issuedNov 23, 2005
Last updated in NPPESAug 25, 2011

Specialties and licenses

TaxonomyCodeLicenseState
Internal Medicine Primary207R00000X157162MA

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 - Internal Medicine (MA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients580
Services billed3,259 across 63 procedure codes
Paid by Medicare$224,127

Part D prescriptions in 2024

Prescriptions (claims)14,900 · 33,248 30-day fills
Patients891
Total drug cost$813,145
Generic share92% of claims

Medicare sources and data years

Education and affiliations

Medical schoolBoston University School of Medicine
Graduation year1995
Medicare specialtyInternal Medicine
TelehealthOffers telehealth

Medical groups

Hospital affiliations

Other facilities

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$6.70 · 1 payment from 1 company
  • 2024$16.66 · 1 payment from 1 company

Top paying companies in 2025

CompanyAmountPayments
Phathom Pharmaceuticals, Inc.$6.701

What the 2025 payments were for

  • Food and Beverage$6.70 · 1 payment

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

Other internal medicine physicians in Whitman

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