Internal Medicine

Dr. Mark A. Johnston, MD


Mark Johnston is an expert in the field of Internal Medicine. Mark Johnston accepts Medicare payments and is listed with Medicare.gov.



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Drug Facts


NPI NUMBER   1679516116
NPPES Provider LastName   JOHNSTON
NPPES Provider FirstName   MARK
NPPES Provider ZIPCode   752313831
NPPES Provider State   TX
Specialty Description   Internal Medicine
Total Claim Count   4189.0
Distinct Opioid Count   2.0
Opioid Claim Count   37.0
Percent Opioid Claims   0.88

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Medicare Facts


National Provider Identifier [NPI] 1679516116
Last Name Of The Provider JOHNSTON
First Name Of The Provider MARK
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