NPI Portal NPI Lookup & Verification

Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Daniel Sarezky

Ophthalmology Physician in Rockville, MD · enumerated 2013 · practices at Visionary Ophthalmology LLC.

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

National Provider Identifier

1659716439

Verified

See something wrong? Report a correction

Registry record

Entity type Individual (Type 1)
Name Daniel Sarezky
Sex Male
Practice address 11300 Rockville Pike Ste 1202, Rockville, MD, 20852
Phone (130) 189-6089
Fax (301) 896-0890
Enumeration date May 7, 2013
Last updated in NPPES Sep 24, 2018

Taxonomy & licenses

207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License D0082993 (MD) Secondary
207W00000X Ophthalmology Physician Allopathic & Osteopathic Physicians · License MD046268 (DC) Primary

Other identifiers

Identifier Type State Issuer
122698300 Medicaid MD -

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

Is NPI 1659716439 active?
Yes, as of the latest NPPES snapshot, NPI 1659716439 is active (record last updated 2018-09-24).
How do I verify Daniel Sarezky's NPI record?
Cross-check NPI 1659716439 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

Other providers at this practice address

Browse all →

Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2018-09-24.