Mark Brian Buckner, M.D.
Emergency Medicine Physician · Sherman, TX
Mark Brian Buckner, M.D. is an emergency medicine physician with a practice address in Sherman, Texas, and NPI 1396752879, issued on Aug 1, 2006. Check the license (Texas J1898, as entered in NPPES) on the Texas Medical Board; the federal record below is the public data PlainDoctor holds for this provider.
- Name
- Mark Brian Buckner
- Credential
- M.D.
- Primary taxonomy
- Emergency Medicine Physician 207P00000X
- License number
- J1898 TX
Self-reported in NPPES; status is on the state search - Practice location
- 913 Cottonwood Dr, Sherman, TX 75090
- Phone
- (903) 868-9565
- Enumerated
- Aug 1, 2006
- Record last updated
- Mar 6, 2012 (not updated in 14 years: call before relying on the address or phone)
- Fax
- (903) 893-8916
- Medicaid IDs
- 752684562 TX
123463510 TX
123463511 TX
123463507 TX - Entity
- Type 1 · individual
8 nearest emergency medicine physician records → All 4,885 in Texas → Look up another NPI →
Also registered at 913 Cottonwood Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Ednah Silmon, FNPPsychiatric/Mental Health Nurse Practitioner1437663788
Verify Mark Brian Buckner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license J1898Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Mark Brian Buckner among 4,885 emergency medicine physician records in Texas
Mark Brian Buckner, M.D. is one of 4,885 emergency medicine physician records with a practice address in Texas. 83% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 6% of them.
- NPI issued2006 · 6% of these records are older, 67% newer
- In a Medicare fileNo · 83% of these records are
- In the CMS Doctors and Clinicians fileNo · 57% of these records are
- Record last updated2012 · 55% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207P00000X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Emergency Medicine Physician providers in Texas
There are 4,885 emergency medicine physician records in Texas. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.
All 4,885 in Texas → Every provider in Sherman → Emergency Medicine Physician nationwide →
The 8 emergency medicine physician records with the nearest ZIP codes
- Marcus Byrd, DOSherman, TX 750901053989210
- Aristotle Callado, DOSherman, TX 750901144843970
- Anthony Beaverson, M.D.Sherman, TX 750921275518250
- Jerry Bennett, MDSherman, TX 750921699768119
- Alfonso Cardenas, MDSherman, TX 750921609899475
- Sadie ColeRowlett, TX 750881003252651
- Larry Dencklau, DORowlett, TX 750881497736375
- Lin Du, D.O.Rowlett, TX 750881154477016
Common questions
What is Mark Brian Buckner, M.D.'s NPI number?
Mark Brian Buckner, M.D.'s National Provider Identifier (NPI) is 1396752879, issued on Aug 1, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Mark Brian Buckner, M.D. located?
The NPPES record lists a practice address at 913 Cottonwood Dr, Sherman, TX, 75090. Phone: (903) 868-9565. Providers update this record themselves, so call before visiting.
How can I verify Mark Brian Buckner, M.D.'s license?
NPPES lists Texas license number J1898, 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.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.