NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Gregory B Krohel, MD

Ophthalmology Physician in Troy, NY · enumerated 2006.

Data current as of Jul 13, 2026 · sourced from CMS NPPES

National Provider Identifier

1871528190

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Gregory B Krohel
Credential MD
Sex Male
Practice address 2200 Burdett Ave, Suite 206, Troy, NY, 12180
Phone (518) 271-6293
Fax (518) 271-6394
Enumeration date Jul 12, 2006
Last updated in NPPES Jul 8, 2007

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License 137990 (NY) Primary
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.

Read the full guide → Validate an NPI →

Frequently asked questions

How do I verify Gregory Krohel's NPI record?
Cross-check NPI 1871528190 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1871528190 active?
Yes, as of the latest NPPES snapshot, NPI 1871528190 is active (record last updated 2007-07-08).

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.