Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of August 10, 2026.
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Dr. Ewan Douglas Johnson, MD, PHD

Individual provider Emergency Medicine Physician · NPI 1043521313

Dr. Ewan Douglas Johnson, MD, PHD is an Internal Medicine in Tomball, Texas. Graduated from University of Texas Medical Branch at Galveston in 2004, 22 years ago. Practices with Concord Medical Group of Texas PLLC, a 317-clinician group, works from 2 locations and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
22
Trained at
University of Texas Medical Branch at Galveston
Licensed in
TX
In the registry since
2010
Specialties on file
3
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.
PHD — Doctor of Philosophy
A research doctorate. In healthcare it usually sits alongside a clinical licence.

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Practice location Address checks out

13414 Medical Complex Dr Ste 6
Tomball, TX 77375-3333
Phone: (281) 415-6687
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Additional practice locations (1)

  • 9359 Hwy 37 Suite D, Corpus Christi, TX 78409-7840 — (800) 951-0182

Specialties & licences

Internal Medicine Physician (primary) Taxonomy 207R00000X · Licence N8018 (TX)
Emergency Medicine Physician Taxonomy 207P00000X · Licence N8018 (TX)
Medical Oncology Physician Taxonomy 207RX0202X · Licence N8018 (TX)

Record details

NPI number1043521313
Entity typeIndividual (Type 1)
GenderMale
Credentials MD , PHD
Sole proprietorNo
NPI enumeratedJuly 1, 2010
Last updated in NPPESJune 11, 2021
Certification dateMay 30, 2021
Mailing address13414 Medical Complex Dr Ste 6, Tomball, TX 77375-3333

Medicare enrollment

From the CMS Doctors & Clinicians file — this clinician is enrolled in Medicare.

Medicare specialtyINTERNAL MEDICINE
Medical schoolUNIVERSITY OF TEXAS MEDICAL BRANCH AT GALVESTON
Graduated 2004 (22 years in practice)
Group practice Concord Medical Group Of Texas Pllc — 317 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations2 on file with Medicare

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