Ewan Douglas Johnson, MD
Internal Medicine Physician · MD, PhD · Oncologist in Tomball, TX
Provider details
- Specialty
- Internal Medicine Physician
- Also registered as
- Emergency Medicine Physician; Medical Oncology Physician
- Credentials
- MD, PhD
- NPI number
- 1043521313
Checked against the CMS National Provider Identifier registry on October 2, 2026.
Medicare information
- Medical school
- University of Texas Medical Branch at Galveston, graduated 2004
- Also sees patients at
- Concord Medical Group of Texas
1500 S Sunset Ave, Littlefield, TX 79339 · (806) 385-6411
- Concord Medical Group of Texas
- Hospital affiliations
- Reeves Regional Health, Pecos, TX · Medicare rating 2 out of 5 stars
- Columbus Community Hospital, Columbus, TX · Medicare rating 2 out of 5 stars
- Medicare
- Accepts Medicare assignment (the Medicare-approved amount as full payment)
From Medicare’s public Care Compare data (Doctors and Clinicians), checked October 3, 2026. Ratings are Medicare’s, not Know Cancer’s. Medicare Care Compare
About
Specialties
- Oncology
- Internal Medicine
Other care in Tomball
- Holistic Practitioners in Tomball (13)
- Health Insurance in Tomball (4)
- Wellness and Nutrition in Tomball (3)
- Physical Therapists in Tomball (3)
- Medical Imaging and Screening in Tomball (2)
- Home Health Care in Tomball (2)
- Hospice in Tomball (2)
- Massage Therapists in Tomball (2)
- Prosthetics, Wigs & Accessories in Tomball (1)
- Psychiatrists in Tomball (1)
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