Physician Profile
Unclaimed ProfileAbout CALDER
John Wilbur Calder, M.D. practices diagnostic radiology in Marble Falls, TX. John is a 1999 graduate of University of Texas Southwestern Medical School at Dallas. Medicare claims data shows John provided 3,359 services to 3,302 patients.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What does Dr. Calder specialize in?
Dr. Calder is a diagnostic radiology in Marble Falls, TX. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “DIAGNOSTIC RADIOLOGY”.
NPI registry
Where is Dr. Calder located?
Dr. Calder is listed at 810 W HIGHWAY 71, Marble Falls, TX 78654. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Calder's phone number?
The number on file is (830) 201-8000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Calder?
Dr. Calder's National Provider Identifier is 1740240829. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Calder go to medical school?
Dr. Calder attended University of Texas Southwestern Medical School at Dallas, graduating in 1999. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Calder have?
Dr. Calder has 27 years experience. Calculated from a graduation year of 1999, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Calder do most often?
According to Medicare billing data, Dr. Calder performs imaging including screening mammography and screening 3d breast mammography; provides treatments such as ultrasound study of one arm or leg veins with compression and maneuvers and ultrasound study of arm or leg veins with compression and maneuvers. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Calder's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Calder. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (830) 201-8000
- Email not available
Practice Locations
810 W HIGHWAY 71
Marble Falls, TX 78654
Procedures Most Often Billed to Medicare
3,359 services · 3,302 patients · 25 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Screening mammography | Imaging | 77067 |
543 |
| Screening 3d breast mammography | Imaging | 77063 |
541 |
| Dxa bone density measurement of hip, pelvis, spine | Imaging | 77080 |
465 |
| X-ray of chest, 1 view | Imaging | 71045 |
421 |
| Dxa bone density measurement of hip, pelvis, spine | Imaging | 77080 |
179 |
| Ct scan of chest without contrast | Imaging | 71250 |
110 |
| X-ray of knee, 4 or more views | Imaging | 73564 |
109 |
| X-ray of knee, 1-2 views | Imaging | 73560 |
79 |
| X-ray of chest, 2 views | Imaging | 71046 |
79 |
| X-ray of shoulder, minimum of 2 views | Imaging | 73030 |
78 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
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Claim this profileRelated providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other diagnostic radiology specialists at this location 2
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Other diagnostic radiology specialists in Marble Falls 1
Same specialty, same city.
More connections — 23 related providers in 3 groups
Trained at University of Texas Southwestern Medical School at Dallas 8
Other providers in the same specialty who trained at the same institution.
Class of 1999 at University of Texas Southwestern Medical School at Dallas 7
Providers who graduated from the same medical school in the same year.
Also performs Screening mammography 8
Providers in TX who bill this service to Medicare most often.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.