Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Dr. Robert J Ryan, DDS
Periodontics in Mt Prospect, IL · enumerated 2006.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1780771436
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Registry record
Entity type Individual (Type 1)
Name Dr. Robert J Ryan
Credential DDS
Sex Male
Practice address 601 W Central Rd, Ste 9, Mt Prospect, IL, 60056
Phone (847) 506-1144
Fax (847) 506-1149
Enumeration date Oct 6, 2006
Last updated in NPPES Jul 8, 2007
Taxonomy & licenses
DDS · Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees.
About the DDS 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
How do I verify Robert Ryan's NPI record?
Cross-check NPI 1780771436 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.
Is NPI 1780771436 active?
Yes, as of the latest NPPES snapshot, NPI 1780771436 is active (record last updated 2007-07-08).
Other providers at this practice address
Browse all → Jamie Kahon Chiropractor · Mount Prospect, IL NPI 1205823119 Bertha Cabrera Pediatrics Physician · Mt Prospect, IL NPI 1235142241 Robert J Ryan DDS PC Periodontics · Mt Prospect, IL NPI 1740377480 Bertha Cabrera MD Pediatric Adolescent Medicine Physician · Mt Prospect, IL NPI 1841465390 Presence Healthcare Services Family Medicine Physician · Mount Prospect, IL NPI 1992008882 Pediatric Medicine Pediatrics Physician · Mt Prospect, IL NPI 1437458064
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2007-07-08.