This database was last updated in December 2017. It should only be used as a historical snapshot. More recent data is available via the Centers for Medicare and Medicaid Services’ lookup tool.
| Provider | Times this Service Performed | Patients | City |
|---|---|---|---|
| LABORATORY CORPORATION OF AMERICA Laboratories, Clinical Medical Laboratory | 1,570 | 1,495 | DALLAS |
| JORGE ZAMORA-QUEZADA Rheumatology | 1,208 | 1,178 | EDINBURG |
| CLINICAL PATHOLOGY LABORATORIES, INC. Laboratories, Clinical Medical Laboratory | 1,015 | 900 | AUSTIN |
| QUEST DIAGNOSTICS CLINICAL LABORATORIES INC Laboratories, Clinical Medical Laboratory | 693 | 675 | IRVING |
| LABORATORY CORPORATION OF AMERICA Laboratories, Clinical Medical Laboratory | 691 | 675 | HOUSTON |
| QUEST DIAGNOSTICS CLINICAL LABORATORIES INC Laboratories, Clinical Medical Laboratory | 214 | 200 | HOUSTON |
| LILLIAN WILLIAMS Physician Assistant | 62 | 61 | EDINBURG |
| FULGENCIO SALINAS Anatomic Pathology & Clinical Pathology | 48 | 48 | EDINBURG |
| MERCURY LABORATORY SERVICES, LLC Laboratories, Clinical Medical Laboratory | 12 | 12 | SPRING |
| B ALVAREZ Pulmonary Disease | 12 | 12 | HOUSTON |
| LUIS SIERRA-NIEVES Physician Assistant | 11 | 11 | FORT WORTH |
Sources: Centers for Medicare and Medicaid Services, National Plan and Provider Enumeration System, American Medical Association
Services that begin with a letter come from CMS. All other codes and descriptions of the medical procedures are from the Current Procedural Terminology (CPT®) code set, copyright 2015 American Medical Association. All rights reserved. Where practical, AMA’s consumer friendly translation of the CPT descriptor was used. ProPublica has received permission from the AMA to use these codes on this site.