John Wilbur Calder, M.D.
Diagnostic Radiology Physician · Marble Falls, TX
John Wilbur Calder, M.D. is a diagnostic radiology physician with a practice address in Marble Falls, Texas, and NPI 1740240829, issued on Mar 24, 2006. Check the license (Texas L2164, as entered in NPPES) on the Texas Medical Board; the Medicare figures below come from public CMS files.
- Name
- John Wilbur Calder
- Credential
- M.D.
- Primary taxonomy
- Diagnostic Radiology Physician 2085R0202X
- License number
- L2164 TX
Self-reported in NPPES; status is on the state search - Practice location
- 810 W Highway 71, Marble Falls, TX 78654
- Phone
- (830) 201-8000
- Enumerated
- Mar 24, 2006
- Record last updated
- Oct 7, 2020 (not updated in 6 years: call before relying on the address or phone)
- Fax
- (830) 201-8008
- Medicare enrollment
- Enrolled (PECOS I20071130000388); accepts Medicare assignment
- Medical or professional school
- University Of Texas Southwestern Medical School At Dallas, 1999
- Entity
- Type 1 · individual
8 nearest diagnostic radiology physician records → All 3,124 in Texas → Look up another NPI →
Also registered at 810 W Highway 71
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify John Wilbur Calder in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersTexas Medical Board
Search for license L2164Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Bills Medicare through one group practice
- Scott And White ClinicTemple, TX
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
John Wilbur Calder among 3,124 diagnostic radiology physician records in Texas
John Wilbur Calder, M.D. 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 2006, is newer than 15% of them.
- NPI issued2006 · 15% of these records are older, 49% newer
- In a Medicare fileYes · 77% of these records are
- In the CMS Doctors and Clinicians fileYes · 73% of these records are
- Graduated1999 · median 2003 among the 2,277 with a school on file
- Record last updated2020 · 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).
5 diagnostic radiology physician records list a practice address in Marble Falls
They are 5 of the 354 NPPES records with a practice address in Marble Falls, and 3,124 diagnostic radiology physician records in Texas.
All 3,124 in Texas → Every provider in Marble Falls → Diagnostic Radiology Physician nationwide →
The 8 diagnostic radiology physician records with the nearest ZIP codes
- Steven Bowman, M.D.Marble Falls, TX 786541477528610
- Michael Foster, MDMarble Falls, TX 786541275594442
- David Weiss, M.D.Marble Falls, TX 786541588619845
- Stacy McFaul, D.O.Marble Falls, TX 786571609875061
- Kevin Barker, M.D.Llano, TX 786431538119078
- Mark Coburn, MDRound Rock, TX 786651811035694
- Howell Cone, M.D.Llano, TX 786431114978640
- Gita Devi, MDRound Rock, TX 786651104899848
Common questions
What is John Wilbur Calder, M.D.'s NPI number?
John Wilbur Calder, M.D.'s National Provider Identifier (NPI) is 1740240829, issued on Mar 24, 2006. An NPI identifies a provider in billing; it is not a license.
Where is John Wilbur Calder, M.D. located?
The NPPES record lists a practice address at 810 W Highway 71, Marble Falls, TX, 78654. Phone: (830) 201-8000. Providers update this record themselves, so call before visiting.
How can I verify John Wilbur Calder, M.D.'s license?
NPPES lists Texas license number L2164, 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.