G. I. Diagnostics, LLC
G. I. Diagnostics, LLC is a healthcare organization registered as Specialist in Union, NJ, holding Type 2 (organization) NPI 1649599184 since 2010. The authorized official on file is William Digiacomo, President.
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| NPI | 1649599184 |
|---|---|
| Entity type | Organization (Type 2) |
| Legal business name | G. I. Diagnostics, LLC |
| Practice address | 2801 MORRIS AVE, Union, NJ, 07083 |
| Phone | 9088510455 |
| Fax | 9088510708 |
| Enumeration date | 2010-05-24 |
| Last updated in NPPES | 2025-03-27 |
Authorized official
| Name | William Digiacomo |
|---|---|
| Title | President |
| Phone | 9088510455 |
Taxonomy & classification
| Taxonomy code | Specialty | Primary | License | State |
|---|---|---|---|---|
| 174400000X | Specialist | Primary | 227461 | NJ |
Other identifiers
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 1982652970 | Other | NJ | INDIVIDULAL NPI# |
Copy-ready billing details
Provider: G. I. Diagnostics, LLC NPI: 1649599184 Taxonomy: 174400000X (Specialist) Address: 2801 MORRIS AVE, Union, NJ, 07083
Providers at this address
| NPI | Name | Type | Specialty | Location |
|---|---|---|---|---|
| 1184672172 | William Digiacomo | Individual | Internal Medicine Physician | Union, NJ |
| 1982652970 | William Digiacomo | Individual | Internal Medicine Physician | Union, NJ |
| 1427153162 | William Scott Digiacomo MD LLC | Organization | Internal Medicine Physician | Union, NJ |
| 1043315682 | William Arthur Digiacomo MD LLC | Organization | Internal Medicine Physician | Union, NJ |
| 1225181944 | Vailsburg Medical Associates | Organization | Internal Medicine Physician | Union, NJ |
| 1922150838 | Suburban Life Extension Institute Inc | Organization | Internal Medicine Physician | Union, NJ |
| 1760629323 | May Choy | Individual | Family Nurse Practitioner | Union, NJ |
| 1952899957 | Genesis Metabolics LLC | Organization | Internal Medicine Physician | Union, NJ |
Verify this record
Cross-check NPI 1649599184 against the authoritative CMS record: view G. I. Diagnostics, LLC 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
What is a Type 2 NPI?
What type of organization is G. I. Diagnostics, LLC?
Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2025-03-27.