{"npi":"1770812588","type":"NPI-1","status":"active","name":{"display":"Mr. Jonathan Welker PA-C","other":[{"code":"5","type":"Also known as","value":"WELKER, JON"}],"first":"JONATHAN","last":"WELKER","middle":"ELLIS","credential":"PA-C"},"specialty":{"primary_taxonomy":"363AM0700X","primary_taxonomy_description":"Medical Physician Assistant","slug":"medical-physician-assistant","schema_org_specialty":null,"all":[{"code":"363AM0700X","description":"Medical Physician Assistant","primary":true,"state":"CO","license":"PA.0002934"}]},"addresses":[{"purpose":"LOCATION","street_1":"4801 RIVERBEND RD STE 200","city":"BOULDER","state":"CO","postal_code":"803012613","country_code":"US","phone":"3034158800","fax":"3034158801"},{"purpose":"MAILING","street_1":"PO BOX 9049","city":"BOULDER","state":"CO","postal_code":"803019049","country_code":"US","phone":"3034158800","fax":"3034158801"}],"license":{"state":"CO","number":"PA.0002934"},"identifiers":[],"pecos":{"enrolled_at":"2026-05-09T10:41:39.028268+00:00","enrollments":[{"enrlmt_id":"I20100218000487","type_code":"14-97","type_desc":"PRACTITIONER - PHYSICIAN ASSISTANT","state":"CO","pac_id":"0244374924"}]},"enumeration_date":"2009-12-08","last_updated":"2022-09-29","_meta":{"source":"NPPES","snapshot_date":"2022-09-29","doc_url":"https://findmynpi.com/api"}}