Dr James G Heffernan DDS,PC
Dr James G Heffernan DDS,PC is a healthcare organization registered as Endodontics in Geneva, IL, holding Type 2 (organization) NPI 1316013261 since 2006. The authorized official on file is James Heffernan, President.
✓ Active NPI ✓ Valid NPI checksum
| NPI | 1316013261 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | Dr James G Heffernan DDS,PC |
| Practice address | 403 WILLIAMSBURG AVE, Geneva, IL, 60134 |
| Phone | 6304065790 |
| Fax | 6302087677 |
| Enumeration date | 2006-11-24 |
| Last updated in NPPES | 2020-08-22 |
Authorized official
| Name | James Heffernan |
|---|---|
| Title | President |
| Phone | 6302087668 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 1223E0200X | Endodontics | Primary | — | IL |
Copy-ready billing details
Provider: Dr James G Heffernan DDS,PC NPI: 1316013261 Taxonomy: 1223E0200X (Endodontics) Address: 403 WILLIAMSBURG AVE, Geneva, IL, 60134
Providers at this address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1386866127 | Darlene Melton | Individual | Dentist | Geneva, IL |
Verify this record
Cross-check NPI 1316013261 against the authoritative CMS record: view Dr James G Heffernan DDS,PC 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 2020-08-22.