Provider records sourced from NPPES (CMS National Plan & Provider Enumeration System). Data current as of October 4, 2026.
NPIDirectory

Mark Douglas Johnson, MD

Individual provider Neurology Physician · NPI 1629018502

Mark Douglas Johnson, MD practises Neurology in Dallas, Texas. Graduated from University Central Del Caribe Escuela De Medicina in 1992, 34 years ago. Practices with University of Texas Southwestern Medical Center at Dallas, a 3,149-clinician group and accepts Medicare assignment. Licensed in Texas.

Years since qualifying
34
Trained at
University Central Del Caribe Escuela De Medicina
Licensed in
TX
In the registry since
2006
What do these letters mean?
MD — Doctor of Medicine
A physician who completed allopathic medical school.

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Practice location Address checks out

5323 Harry Hines Blvd
Dallas, TX 75390-7208 Not confirmed with CMS for 18 years — call before visiting
Phone: (214) 645-8800
Fax: (214) 645-8801
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Pin is approximate — placed at the ZIP-code centre, not the exact door.

Specialties & licences

Neurology Physician (primary) Taxonomy 2084N0400X · Licence K6024 (TX)

Record details

NPI number1629018502
Entity typeIndividual (Type 1)
GenderMale
Credentials MD
Sole proprietorNo
NPI enumeratedJune 7, 2006
Last updated in NPPESNovember 28, 2007

Medicare enrollment

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

Medicare specialtyNEUROLOGY
Medical schoolUNIVERSITY CENTRAL DEL CARIBE ESCUELA DE MEDICINA
Graduated 1992 (34 years in practice)
Group practice University Of Texas Southwestern Medical Center At Dallas — 3149 clinicians
Accepts Medicare assignment Yes — accepts the Medicare-approved amount
Practice locations8 on file with Medicare

Medicare patients and services, 2024

From the CMS Medicare Physician & Other Practitioners file for calendar year 2024. It counts Original Medicare patients only, so a practice that mostly sees Medicare Advantage or privately insured patients looks smaller here than it is.

Medicare patients153
Services billed 361 a service is one billed item, such as a visit, a test or a procedure
Average patient age73

Dollar amounts are not shown. What Medicare pays a practice is gross billings, before staff, premises and tax and including the cost of any drugs it administers, so it is not what a clinician earns.

Practises at

Facilities the CMS Facility Affiliation file lists for this clinician. Those with a page here are linked.

  • Parkland Health & Hospital System Hospital · Dallas, TX · listed as Parkland Health and Hospital Systems
  • Ut Of Texas Southwestern University Hospital - William P. Clements Jr. Hospital · Dallas, TX

Colleagues at University of Texas Southwestern Medical Center at Dallas

Clinicians the CMS Doctors & Clinicians file lists under the same group practice. CMS counts 3149 clinicians in the practice; 12 are shown here.

Other providers in Dallas