Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Nathan William Csonka, O.D.
Optometrist in Warminster, PA · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1295718179
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Registry record
Entity type Individual (Type 1)
Name Nathan William Csonka
Credential O.D.
Sex Male
Practice address 179 York Rd, Warminster, PA, 18974
Phone (215) 674-2020
Fax (215) 674-4323
Enumeration date Nov 23, 2005
Last updated in NPPES Jan 4, 2008
Taxonomy & licenses
OD · Doctor of Optometry: A licensed optometrist providing primary vision care, eye exams, and corrective lenses.
About the OD 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.
Frequently asked questions
Is this the official NPI registry?
No. NPI Portal is a private site built on public CMS NPPES data. The official registry is npiregistry.cms.hhs.gov, operated by CMS.
What specialty is Nathan Csonka?
Nathan Csonka is registered in NPPES with the primary taxonomy of Optometrist. The taxonomy code describes the provider's classification and area of specialization for claims and credentialing.
Other providers at this practice address
Browse all → Thomas Phillips Optometrist · Warminster, PA NPI 1053306431 Mitchell Scheiman Vision Therapy Optometrist · Warminster, PA NPI 1558343996 Thomas S Phillips Odpc Optometrist · Warminster, PA NPI 1770682387 Benjamin Schneider General Practice Dentistry · Warminster, PA NPI 1417042169 Alexander Sulpovar General Practice Dentistry · Warminster, PA NPI 1558581108 Vision Therapy Associates Vision Therapy Optometrist · Warminster, PA NPI 1790923357 Precision Dentistry, Inc Dental Clinic/Center · Warminster, PA NPI 1780997320
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2008-01-04.