John J Grandner is a Nurse Practitioner based in Rockville, MD. John J Grandner practices in Rockville, MD and has the professional credentials of CRNP. The NPI Number for John J Grandner is 1699843094 and holds a License No. RN47957 (Maryland).

The current practice location address for John J Grandner is 2101 E Jefferson St, Rockville, MD and can be reached out via phone at 202-898-5104 and via fax at 202-898-5474. You can also correspond with John J Grandner through the mailing address at 2101 EAST JEFFERSON STREET, ROCKVILLE, MD - 20852-4908 (mailing address contact number: 301-816-2414).