Gregory S. Jacob, DDS
Dentist · Des Plaines, IL
Gregory S. Jacob, DDS is a dentist with a practice address in Des Plaines, Illinois, and NPI 1992795710, issued on Oct 24, 2005. Check the license (Illinois 019019708, as entered in NPPES) with the Illinois board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Gregory S. Jacob
- Credential
- DDS
- Primary taxonomy
- Dentist 122300000X
- License numbers
- 019019708 IL
593215 WI
Self-reported in NPPES; status is on the state search - Practice location
- 9672 Reding Cir, Des Plaines, IL 60016
- Phone
- (630) 347-0883
- Enumerated
- Oct 24, 2005
- Record last updated
- Jul 6, 2026
- Entity
- Type 1 · individual
8 nearest dentist records → All 4,522 in Illinois → Look up another NPI →
Verify Gregory S. Jacob in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Illinois board licenses this profession
Search for license 019019708Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Industry payments in 2024: $16.89
1 payment: grant; the largest payer was Envista Holdings Corporation. The 31,974 providers of this specialty with any payment received $540.36 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Gregory S. Jacob among 4,522 dentist records in Illinois
Gregory S. Jacob, DDS is one of 4,522 dentist records with a practice address in Illinois. 64% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 98% newer
- In a Medicare fileYes · 64% of these records are
- In the CMS Doctors and Clinicians fileNo · under 1% of these records are
- Record last updated2026 · 74% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 122300000X and a Illinois practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
35 dentist records list a practice address in Des Plaines
They are 35 of the 1,164 NPPES records with a practice address in Des Plaines, and 4,522 dentist records in Illinois.
All 4,522 in Illinois → Every provider in Des Plaines → Dentist nationwide →
The 8 dentist records with the nearest ZIP codes
- Lisa BlumofeDes Plaines, IL 600161316063811
- Carina Chavez, D.D.S.Des Plaines, IL 600161801956305
- Jeanne Duggan, D.D.S.Des Plaines, IL 600161295880581
- Phillip FijalDes Plaines, IL 600161164561114
- Eva Hanna, DDSDes Plaines, IL 600161508981762
- Mark Hattenhauer, D.D.S.Des Plaines, IL 600161740313345
- Barry Janov, D.D.S.Des Plaines, IL 600161629123914
- Edward Kenny, DDSDes Plaines, IL 600161679642748
Common questions
What is Gregory S. Jacob, DDS's NPI number?
Gregory S. Jacob, DDS's National Provider Identifier (NPI) is 1992795710, issued on Oct 24, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Gregory S. Jacob, DDS located?
The NPPES record lists a practice address at 9672 Reding Cir, Des Plaines, IL, 60016. Phone: (630) 347-0883. Providers update this record themselves, so call before visiting.
How can I verify Gregory S. Jacob, DDS's license?
NPPES lists Illinois license number 019019708, as entered by the provider. Search the Illinois board that licenses this profession; the NPPES record confirms identity only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.