Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ronald S. Weingart
Optometrist in Oswego, IL · enumerated 2005.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1639169998
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Registry record
Entity type Individual (Type 1)
Name Ronald S. Weingart
Sex Male
Practice address 2075 Wiesbrook Drive, Oswego, IL, 60543
Phone (630) 844-0908
Fax (630) 844-0677
Enumeration date Oct 26, 2005
Last updated in NPPES Jun 14, 2024
Taxonomy & licenses
152WC0802X Corneal and Contact Management Optometrist Eye and Vision Services Providers · License 046-007810 (IL) Secondary
152WV0400X Vision Therapy Optometrist Eye and Vision Services Providers · License 046-007810 (IL) Secondary
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
What specialty is Ronald Weingart?
Ronald Weingart 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.
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.
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2024-06-14.