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Diane Elizabeth Singer, M.D.

NPI 1275554826ActiveIndividual· Ophthalmology· Great Barrington, MA

Ophthalmology (M.D.) with Community Health Programs Inc and 1 other group, practicing in Great Barrington, Massachusetts. In 2024 Medicare paid $203,138 for 1,771 patients, and Part D covered 1,631 of their prescriptions, 81% of them generic. Sun Pharmaceutical Industries Inc. was the largest of 4 companies reporting payments in 2025, $106.78 in all, mostly food and beverage. Lists Berkshire Medical Center as a hospital affiliation.

Overview

NPI1275554826
StatusActive
Entity typeIndividual
CredentialM.D.
Sole proprietorNo
NPI issuedJul 21, 2006
Last updated in NPPESJan 28, 2016

Specialties and licenses

TaxonomyCodeLicenseState
Ophthalmology Primary207W00000X243111MA
Ophthalmology207W00000X055449GA

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 - Ophthalmology (MA)
Accepts assignmentYes (participating)

Medicare services in 2024

Medicare patients1,771
Services billed2,953 across 24 procedure codes
Paid by Medicare$203,138

Part D prescriptions in 2024

Prescriptions (claims)1,631 · 3,201 30-day fills
Patients436
Total drug cost$210,885
Generic share81% of claims

Medicare sources and data years

Education and affiliations

Graduation year1993
Medicare specialtyOphthalmology

Medical groups

Hospital affiliation

Source: CMS Care Compare

Industry payments (Open Payments)

  • 2025$106.78 · 5 payments from 4 companies
  • 2024$77.77 · 4 payments from 2 companies

Top paying companies in 2025

What the 2025 payments were for

  • Food and Beverage$106.78 · 5 payments

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

Other ophthalmologists in Great Barrington

All ophthalmologists in Massachusetts