Mark Douglas Johnson, MD
Neurology Physician · Dallas, TX
Mark Douglas Johnson, MD is a neurology physician with a practice address in Dallas, Texas, and NPI 1629018502, issued on Jun 7, 2006. Check the license (Texas K6024, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Mark Douglas Johnson
- Credential
- MD
- Primary taxonomy
- Neurology Physician 2084N0400X
- License number
- K6024 TX
Self-reported in NPPES; status is on the state search - Practice location
- 5323 Harry Hines Blvd, Dallas, TX 75390
- Phone
- (214) 645-8800
- Enumerated
- Jun 7, 2006
- Record last updated
- Nov 28, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (214) 645-8801
- Medicaid ID
- 106200202 TX
- Medicare enrollment
- Enrolled (PECOS I20100323000155); accepts Medicare assignment
- Medical or professional school
- University Central Del Caribe Escuela De Medicina, 1992
- Entity
- Type 1 · individual
8 nearest neurology physician records → All 1,382 in Texas → Look up another NPI →
Also registered at 5323 Harry Hines Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Mark Douglas Johnson in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license K6024Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
94% fewer Medicare Part D claims than the average neurology physician in 2024
86 Medicare Part D claims for 21 beneficiaries, against an average of 1,370 among the 15,005 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of claims.
Most prescribed
- Eliquis13 claims
- Methylphenidate Hcl13 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The practice group's MIPS final score for 2023 (Medicare payment program): 74.6 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Bills Medicare through one group practice
- University OF Texas Southwestern Medical Center AT DallasDenton, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Mark Douglas Johnson among 1,382 neurology physician records in Texas
Mark Douglas Johnson, MD is one of 1,382 neurology physician records with a practice address in Texas. 82% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 11% of them.
- NPI issued2006 · 11% of these records are older, 61% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileYes · 67% of these records are
- Graduated1992 · median 2003 among the 930 with a school on file
- Record last updated2007 · 46% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0400X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Neurology Physician providers in Texas
There are 1,382 neurology physician records in Texas.
All 1,382 in Texas → Every provider in Dallas → Neurology Physician nationwide →
The 8 neurology physician records with the nearest ZIP codes
- Mark Alberts, MDDallas, TX 753901992795140
- Stephen Cannon, MD PHDDallas, TX 753901962461095
- Benjamin Greenberg, MDDallas, TX 753901518922871
- Amyn Habib, MDDallas, TX 753901255389003
- Ronald Haller, MDDallas, TX 753901346219896
- Susan Iannaccone, MDDallas, TX 753901023078607
- Sharon Nations, MDDallas, TX 753901386600575
- Padraig Osuilleabhain, MDDallas, TX 753901689634180
Common questions
What is Mark Douglas Johnson, MD's NPI number?
Mark Douglas Johnson, MD's National Provider Identifier (NPI) is 1629018502, issued on Jun 7, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Douglas Johnson, MD located?
The NPPES record lists a practice address at 5323 Harry Hines Blvd, Dallas, TX, 75390. Phone: (214) 645-8800. Providers update this record themselves, so call before visiting.
How can I verify Mark Douglas Johnson, MD's license?
NPPES lists Texas license number K6024, as entered by the provider. Search the Texas Medical Board at https://profile.tmb.state.tx.us/Search.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Mark Douglas Johnson, MD prescribe under Medicare Part D?
In 2024, Mark Douglas Johnson, MD had 86 Medicare Part D claims for 21 beneficiaries; the average among neurology physician prescribers was 1,370. Part D covers Medicare prescriptions only.
What is Mark Douglas Johnson, MD's MIPS final score?
The 2023 MIPS final score is 74.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.