Dr. Gregory S Jacob, DDS
Dr. Gregory S Jacob is a Dentist provider (Dentist) practicing in Glenview, IL, registered in the NPPES registry with NPI 1992795710 since 2005. The credential DDS stands for Doctor of Dental Surgery.
✓ Active NPI ✓ Valid NPI checksum Sole proprietor
| NPI | 1992795710 |
|---|---|
| Entity type | Individual (Type 1) |
| Name | Dr. Gregory S Jacob |
| Credential | DDS |
| Sex | Male |
| Practice address | Glenview, IL, 60025 |
| Phone | 8475091990 |
| Fax | 8475091992 |
| Enumeration date | 2005-10-24 |
| Last updated in NPPES | 2024-03-29 |
Street address withheld — NPPES sole-proprietor addresses can be home addresses. See our data policy.
Taxonomy & licenses
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 122300000X | Dentist | Secondary | 593215 | WI |
| 122300000X | Dentist | Primary | 019019708 | IL |
DDS — Doctor of Dental Surgery: A licensed dentist; DDS and DMD are equivalent dental degrees. About the DDS credential
Copy-ready billing details
Provider: Gregory Jacob, DDS NPI: 1992795710 Taxonomy: 122300000X (Dentist) Address: Glenview, IL, 60025
Other providers at this practice address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1346305067 | Augusto Montalvo, Mdsc | Organization | Dermatology Physician | Glenview, IL |
| 1134268022 | James Laurie | Individual | Chiropractor | Glenview, IL |
| 1134343478 | Laurie Enterprises Incorporated | Organization | Chiropractor | Glenview, IL |
| 1962785865 | Jolanta Mcnamara | Individual | Professional Counselor | Glenview, IL |
| 1720425044 | Michael Clatch | Individual | Clinical Psychologist | Glenview, IL |
| 1154768471 | Courage To Connect Therapeutic Center LLC | Organization | Clinical Psychologist | Glenview, IL |
| 1417690090 | Daniel Dietrich | Individual | Professional Counselor | Glenview, IL |
| 1144949298 | Kyle Mcguinness | Individual | Mental Health Counselor | Glenview, IL |
Verify this record
Cross-check NPI 1992795710 against the authoritative CMS record: view Dr. Gregory S Jacob on the official NPPES registry .
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 or validate an NPI number.
Frequently asked questions
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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2024-03-29.