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Ophthalmology

Ganga R. Nair, MD

Sees patients in Herkimer, NY · Hamilton, NY · New Hartford, NY · New York

Summary

Dr. Ganga R. Nair, MD is an ophthalmologist at 250 E State St, Herkimer, NY 13350. Phone: (315) 894-3132. Accepts Medicare assignment. In 2024, Ganga R. Nair had 872 Original Medicare patients and 2,709 services. NPI 1184710386. Source: CMS National Downloadable File, updated October 2, 2026; CMS Medicare Physician & Other Practitioners, data year 2024.

  • Specialty: Ophthalmologist (Medicare lists Ophthalmology)
  • Address: 250 E State St, Herkimer, NY 13350 · Directions (2 more locations)
  • Phone: (315) 894‑3132
  • Medicare: Accepts Medicare assignment
  • Group practice: Costello Eye Physicians and Surgeons PLLC
  • Medical school: State University Of Ny Upstate Medical University · graduated 1999 (27 years since medical school)
  • Gender (as listed): Female

From official Medicare data

This page shows what Medicare's official clinician data says about Ganga R. Nair, joined by NPI number (data updated October 2, 2026). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

Quick answers

Does Ganga R. Nair accept Medicare assignment?
Yes. Medicare's clinician data says Ganga R. Nair accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
How many Medicare patients does Ganga R. Nair see?
In 2024, CMS data shows 872 Original Medicare patients and 2,709 services for Ganga R. Nair. This counts Original Medicare only and measures volume, not quality.
What is Ganga R. Nair's NPI number?
1184710386. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Medicare activity in 2024

Official CMS public-use data for Ganga R. Nair, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.

Original Medicare patients872
Services billed to Medicare2,709
Different services or procedures25
Participating Medicare providerYes
Average age of these patients76

Most frequent services

  1. Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)597 services
  2. Established patient complete exam of visual system (92014)362 services
  3. Established patient problem focused exam of visual system (92012)313 services
  4. Imaging of optic nerve (92133)233 services
  5. Removal of cataract with insertion of prosthetic lens (66984)180 services

Chronic conditions among these patients

Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).

  • High blood pressure75%
  • High cholesterol75%
  • Arthritis40%
  • Diabetes29%
  • Ischemic heart disease23%
  • Anxiety22%

Practice locations

Addresses where Ganga R. Nair is enrolled with Medicare (CMS data updated October 2, 2026).

Group practices

Medicare enrollment lists Ganga R. Nair as a member of this group (CMS data updated October 2, 2026).

  • Costello Eye Physicians and Surgeons PLLC8 clinicians in the group

Specialties

Find other Ophthalmology doctors in New York →

Other ophthalmologists in New York

Clinicians with the same Medicare primary specialty in New York — not a recommendation.

All ophthalmologists in New York →

Other clinicians in Costello Eye Physicians and Surgeons PLLC

Medicare enrollment lists these clinicians in the same group practice — not a recommendation.

Clinician information

CredentialMD
Medical schoolState University Of Ny Upstate Medical University
Graduation year1999 (27 years since medical school)
Gender (as listed)Female
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1184710386
CorrectionsReport an error or suggest an update →

Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.

Sources

  1. National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
  2. Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
  3. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  4. Medicare Care Compare — official Medicare tool to look up clinicians