James Stephen Allen is a Internal Medicine Physician based in San Ramon, CA. James Stephen Allen practices in San Ramon, CA and has the professional credentials of DO. The NPI Number for James Stephen Allen is 1902099518 and holds a License No. 159380-1 (California).
The current practice location address for James Stephen Allen is 6001 Bollinger Canyon Rd, San Ramon, CA and can be reached out via phone at 925-842-3224 and via fax at 925-842-3242.
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