Richard Coleman Johnston, M.D.
Internal Medicine Physician · Irving, TX
Richard Coleman Johnston, M.D. is an internal medicine physician with a practice address in Irving, Texas, and NPI 1205878477, issued on Jun 12, 2006. Check the license (Texas E4438, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- Richard Coleman Johnston
- Credential
- M.D.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- E4438 TX
Self-reported in NPPES; status is on the state search - Practice location
- 6750 N Macarthur Blvd Ste 350, Irving, TX 75039
- Phone
- (972) 556-1616
- Enumerated
- Jun 12, 2006
- Record last updated
- Oct 29, 2019 (not updated in 7 years: call before relying on the address or phone)
- Fax
- (972) 556-1740
- Medicaid IDs
- 124070707 TX
124070705 TX
124070706 TX - Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 9,175 in Texas → Look up another NPI →
Also registered at 6750 N Macarthur Blvd Ste 350
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Charles Grubb, P.A.Physician Assistant1366484354
- Iffat Jahan, MDFamily Medicine Physician1861705113
- Elisha Jno-Baptiste, MDFamily Medicine Physician1871915454
- Ryan Jones, M.D.Internal Medicine Physician1790983682
Verify Richard Coleman Johnston in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license E4438Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average internal medicine physician in 2024
59 Medicare Part D claims for 13 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 19% of 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.
Richard Coleman Johnston among 9,175 internal medicine physician records in Texas
Richard Coleman Johnston, M.D. is one of 9,175 internal medicine 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 9% of them.
- NPI issued2006 · 9% of these records are older, 59% newer
- In a Medicare fileYes · 82% of these records are
- In the CMS Doctors and Clinicians fileNo · 66% of these records are
- Record last updated2019 · 49% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
98 internal medicine physician records list a practice address in Irving
They are 98 of the 3,532 NPPES records with a practice address in Irving, and 9,175 internal medicine physician records in Texas.
All 9,175 in Texas → Every provider in Irving → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Selim Ahmed, MDIrving, TX 750391508805813
- Sumitha Atluri, MDIrving, TX 750391265513923
- Pritha Browning, M.D.Irving, TX 750391992723126
- Rupal Chiniwala, M.D.Irving, TX 750391013956408
- Megan Conoley, M.D.Irving, TX 750391689611485
- Bryan Demarie, M.D.Irving, TX 750391225085822
- Murad Jussa, M.D.Irving, TX 750391376593145
- Wen Lai, M.D.Irving, TX 750391689698870
Common questions
What is Richard Coleman Johnston, M.D.'s NPI number?
Richard Coleman Johnston, M.D.'s National Provider Identifier (NPI) is 1205878477, issued on Jun 12, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Richard Coleman Johnston, M.D. located?
The NPPES record lists a practice address at 6750 N Macarthur Blvd Ste 350, Irving, TX, 75039. Phone: (972) 556-1616. Providers update this record themselves, so call before visiting.
How can I verify Richard Coleman Johnston, M.D.'s license?
NPPES lists Texas license number E4438, 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 Richard Coleman Johnston, M.D. prescribe under Medicare Part D?
In 2024, Richard Coleman Johnston, M.D. had 59 Medicare Part D claims for 13 beneficiaries; the average among internal medicine physician prescribers was 3,176. Part D covers Medicare prescriptions only.
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.