NPPES file of Aug 9, 2026

Mark W. Coburn, MD

Diagnostic Radiology Physician · Round Rock, TX

Mark W. Coburn, MD is a diagnostic radiology physician with a practice address in Round Rock, Texas, and NPI 1811035694, issued on Feb 2, 2007. Check the license (Texas N4357, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1811035694
Name
Mark W. Coburn
Credential
MD
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
License numbers
N4357 TX
108365 MO
MD61603753 WA
Self-reported in NPPES; status is on the state search
Practice location
300 University Blvd, Round Rock, TX 78665
Phone
(512) 509-0100
Enumerated
Feb 2, 2007
Record last updated
Dec 4, 2025
Fax
(512) 218-6330
Medicaid IDs
140791001 AR
205007503 MO
Medicare enrollment
Enrolled (PECOS I20141008002594); accepts Medicare assignment
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 300 University Blvd

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Brian Albert, MDEmergency Medicine Physician1780241638
  2. Torey AllingEmergency Medicine Physician1871121814
  3. Victoriano AquinoPhysician Assistant1750919742
  4. Rachel Arffa, MDOtolaryngology Physician1316268410
  5. Danielle Arnold, MDPediatrics Physician1114293834
  6. Joseph Ayoub, M.D.Diagnostic Radiology Physician1588844609

Verify Mark W. Coburn in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical Board
    Search for license N4357
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Texas license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Bills Medicare through 15 group practices

  1. Central Washington Health Services AssociationPark City, UT
  2. County OF Santa ClaraSan Jose, CA
  3. Evergreen Radia LLCAustin, TX
  4. Middle Tennessee Imaging LLCBelton, TX
  5. Okanogan County Public Hospital District NO. 3Omak, WA
  6. Radia California Radiology Medical Group IncPark City, UT
  7. Radia Inc P SAustin, TX
  8. Radia Oregon Radiology Medical Group LLCAustin, TX
  9. Radiology Alliance PCAustin, TX
  10. Singleton Associates PAAustin, TX
  11. Swedish Health ServicesEverett, WA
  12. Swedish Health ServicesSeattle, WA
  13. Swedish Radia Imaging Center AT Edmonds LLCAustin, TX
  14. Tower Imaging Medical Associates IncAustin, TX
  15. Yakima Valley Memorial PhysiciansYakima, WA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Mark W. Coburn among 3,124 diagnostic radiology physician records in Texas

Mark W. Coburn, MD is one of 3,124 diagnostic radiology physician records with a practice address in Texas. 77% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2007, is newer than 51% of them.

  • NPI issued2007 · 51% of these records are older, 39% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileYes · 73% of these records are
  • Graduated1995 · median 2003 among the 2,277 with a school on file
  • Record last updated2025 · 61% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0202X and a Texas practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Diagnostic Radiology Physician providers in Texas

There are 3,124 diagnostic radiology physician records in Texas.

The 8 diagnostic radiology physician records with the nearest ZIP codes

  1. Joseph Ayoub, M.D.Round Rock, TX 786651588844609
  2. Jarrod Dale, M.D.Round Rock, TX 786651457586562
  3. Gita Devi, MDRound Rock, TX 786651104899848
  4. Michael Do, M.D.Round Rock, TX 786651811144405
  5. Jeffrey Helmcamp, M.D.Round Rock, TX 786651124237979
  6. Jing Jiang, M.DRound Rock, TX 786651578894853
  7. Michael Kim, MDRound Rock, TX 786651578751400
  8. Patricia Lee, M.D.Round Rock, TX 786651588615603

Common questions

What is Mark W. Coburn, MD's NPI number?

Mark W. Coburn, MD's National Provider Identifier (NPI) is 1811035694, issued on Feb 2, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Mark W. Coburn, MD located?

The NPPES record lists a practice address at 300 University Blvd, Round Rock, TX, 78665. Phone: (512) 509-0100. Providers update this record themselves, so call before visiting.

How can I verify Mark W. Coburn, MD's license?

NPPES lists Texas license number N4357, 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. 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.