{"npi":"1427375138","type":"NPI-1","status":"active","name":{"display":"David Marker MD","other":[],"first":"DAVID","last":"MARKER","middle":"REEVE","credential":"MD"},"specialty":{"primary_taxonomy":"2085R0202X","primary_taxonomy_description":"Diagnostic Radiology","slug":"diagnostic-radiology","schema_org_specialty":"Radiography","all":[{"code":"2085R0202X","description":"Diagnostic Radiology","primary":true,"state":"TX","license":"Q9193"}]},"addresses":[{"purpose":"LOCATION","street_1":"6565 FANNIN ST # M204","city":"HOUSTON","state":"TX","postal_code":"770302703","country_code":"US","phone":"7134417558"},{"purpose":"MAILING","street_1":"12312 WILLOW WOODS DR","city":"FREDERICKSBURG","state":"VA","postal_code":"22407","country_code":"US"}],"license":{"state":"TX","number":"Q9193"},"identifiers":[],"pecos":{"enrolled_at":"2026-05-09T10:41:39.028268+00:00","enrollments":[{"enrlmt_id":"I20160908002550","type_code":"14-30","type_desc":"PRACTITIONER - DIAGNOSTIC RADIOLOGY","state":"TX","pac_id":"2769631878"}]},"enumeration_date":"2010-04-21","last_updated":"2018-04-12","_meta":{"source":"NPPES","snapshot_date":"2018-04-12","doc_url":"https://findmynpi.com/api"}}