NPPES file of Aug 9, 2026

John Byron Clark, D.O.

Diagnostic Radiology Physician · Temple, TX

John Byron Clark, D.O. is a diagnostic radiology physician with a practice address in Temple, Texas, and NPI 1568614899, issued on Oct 17, 2008. Check the license on the Texas Medical Board; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1568614899
Name
John Byron Clark
Credential
D.O.
Primary taxonomy
Diagnostic Radiology Physician 2085R0202X
License number
DOS-1184 HI
Self-reported in NPPES; status is on the state search
Practice location
1901 Veterans Memorial Dr, Temple, TX 76504
Phone
(254) 778-4811
Enumerated
Oct 17, 2008
Record last updated
May 2, 2019 (not updated in 7 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 1901 Veterans Memorial Dr

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

  1. Mana Agbonghae, FNP-CNurse Practitioner1952879389
  2. Itite Agiri, PMHNP-BC, APRNPsychiatric/Mental Health Nurse Practitioner1821719956
  3. Matthew Agius, M.D.Psychiatry Physician1861599771
  4. Bryan AinsworthCertified Registered Nurse Anesthetist1457182958
  5. Sammantha AlbrightCritical Care Medicine Registered Nurse1578149936
  6. David Allton, M.D.Infectious Disease Physician1255450078

Verify John Byron Clark in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersTexas Medical BoardCheck 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

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33% more Medicare Part D claims than the average diagnostic radiology physician in 2024

68 Medicare Part D claims, against an average of 51 among the 2,711 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.

  1. John Clark68
  2. Specialty average51

Most prescribed

  1. Amlodipine Besylate14 claims
  2. Donepezil Hcl12 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.

John Byron Clark among 3,124 diagnostic radiology physician records in Texas

John Byron Clark, D.O. 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 2008, is newer than 61% of them.

  • NPI issued2008 · 61% of these records are older, 34% newer
  • In a Medicare fileYes · 77% of these records are
  • In the CMS Doctors and Clinicians fileNo · 73% of these records are
  • Record last updated2019 · 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).

67 diagnostic radiology physician records list a practice address in Temple

They are 67 of the 4,612 NPPES records with a practice address in Temple, and 3,124 diagnostic radiology physician records in Texas.

The 8 diagnostic radiology physician records with the nearest ZIP codes

  1. William Boyd, MDTemple, TX 765041346353588
  2. Harry Ko, M.D.Temple, TX 765041750497566
  3. Rajnikant Shah, M.D.Temple, TX 765041356358584
  4. Karen Stewart, M. D.Temple, TX 765041356459358
  5. Gordon Vincent, M.D.Temple, TX 765041538157771
  6. Michael Naumann, M.D.Temple, TX 765021386821171
  7. Stephen Sherman, MDTemple, TX 765021720074735
  8. Chad Strange, MDTemple, TX 765021982665550

Common questions

What is John Byron Clark, D.O.'s NPI number?

John Byron Clark, D.O.'s National Provider Identifier (NPI) is 1568614899, issued on Oct 17, 2008. An NPI identifies a provider in billing; it is not a license.

Where is John Byron Clark, D.O. located?

The NPPES record lists a practice address at 1901 Veterans Memorial Dr, Temple, TX, 76504. Phone: (254) 778-4811. Providers update this record themselves, so call before visiting.

How can I verify John Byron Clark, D.O.'s license?

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 John Byron Clark, D.O. prescribe under Medicare Part D?

In 2024, John Byron Clark, D.O. had 68 Medicare Part D claims; the average among diagnostic radiology physician prescribers was 51. 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.