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Ophthalmology

Gregory B. Krohel, MD

Sees patients in Troy, NY · Malta, NY · New York

Summary

Gregory B. Krohel, MD (Ophthalmology) is enrolled with Medicare at 2 practice locations in Troy, NY and Malta, NY. NPI 1871528190. Medicare data says the clinician accepts Medicare assignment. Source: CMS National Downloadable File, updated 2026-10-02.

From official Medicare data

This page shows what Medicare's official clinician data says about Gregory B. Krohel, joined by NPI number (data updated 2026-10-02). It is not a recommendation or a rating. Call the office or hospital to confirm before you go.

In a medical emergency, call 911.

At a glance

OphthalmologyPrimary specialty
YesAccepts Medicare assignment
52Years since medical school (graduated 1974)
Albany Medical College Of Union UniversityMedical school
MaleGender (as listed)
Saratoga Vitreo-Retinal Ophthalmology PLLCGroup practice

Quick answers

Where does Gregory B. Krohel see patients?
Medicare's clinician data lists 2 practice locations, including Troy, NY and Malta, NY. Call before your visit to confirm the address.
What is Gregory B. Krohel's specialty?
Medicare lists Ophthalmology as the primary specialty.
Does Gregory B. Krohel accept Medicare assignment?
Yes. Medicare's clinician data says Gregory B. Krohel accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
What is the phone number for Gregory B. Krohel?
(518) 580-0553, as listed in official Medicare / NPI Registry data.
What is Gregory B. Krohel's NPI number?
1871528190. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.

Practice locations

Addresses where Gregory B. Krohel is enrolled with Medicare (CMS data updated 2026-10-02).

Group practices

Medicare enrollment lists Gregory B. Krohel as a member of this group (CMS data updated 2026-10-02).

  • Saratoga Vitreo-Retinal Ophthalmology PLLC14 clinicians in the group

Specialties

Find other Ophthalmology doctors in New York →

Other ophthalmologists in Troy

Clinicians with the same Medicare primary specialty in Troy, NY — not a recommendation.

All ophthalmologists in Troy →

Clinician information

CredentialMD
Medical schoolAlbany Medical College Of Union University
Graduation year1974
Gender (as listed)Male
Medicare assignmentAccepts (Medicare-approved amount as full payment)
NPI (National Provider Identifier)1871528190
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 2026-10-02, retrieved 2026-10-29
  2. NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
  3. Medicare Care Compare — official Medicare tool to look up clinicians