John J Gnap is an Addiction Medicine (Family Medicine) Physician based in Chicago Ridge, IL and is specialized in Addiction Medicine. John J Gnap practices in Chicago Ridge, IL and has the professional credentials of MD. The NPI Number for John J Gnap is 1164572319 and holds a License No. 036040753 (Illinois).
The current practice location address for John J Gnap is 10436 Southwest Highway, Chicago Ridge, IL and can be reached out via phone at 708-424-2266 and via fax at 708-424-9763.
| Identifier | Type | State | Issuer |
|---|---|---|---|
| 02201177 | 01 | IL | BCBS |
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