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Edit this profileAt a glance
- 810 W Highway 71, Marble Falls, TX 78654
About Dr. Calder
John W. 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. The services billed most often include screening mammography, screening 3d breast mammography, and dxa bone density measurement of hip, pelvis, spine. The provider's National Provider Identifier (NPI) is 1740240829.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (830) 201-8000
- Email not available
Practice Locations
810 W HIGHWAY 71
Marble Falls, TX 78654
Conditions Evaluated or Diagnosed
Within Diagnostic Radiology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Abdomen & Pelvis
- Abdominal Pain
- Appendicitis
- Diverticulitis
- Enlarged prostate
- Gallstones
- Kidney stones
- Liver Lesions
- Ovarian cysts
Bone & Joint
- Ankle Sprain or Fracture
- Bone fractures
- Heel pain
- Hip osteoarthritis
- Osteoporosis
- Rotator cuff tear
- Torn meniscus
Brain & Head
- Brain aneurysm
- Brain tumor
- Concussion in Children
- Migraines
- Sinus infection
- Transient ischemic attack
Brain & nerves
- Water On Baby's Brain
Breast
- Breast lump or mass
- Dense Breast Tissue
Chest & Heart
General
Heart & blood vessels
- Aortic aneurysm
Joint & bone
- Hip labral tear
- Shoulder Labrum Tear
- Stress fracture
- Tennis elbow
- Torn Achilles tendon
- Torn ACL
Liver & digestion
Lungs & breathing
Men's health
- Varicocele
Neck & Thyroid
- Thyroid nodule
Nerve pain
Pelvic health
Spine
- Back pain
- Cervical radiculopathy
- Herniated disc
- Neck pain
- Sciatica
Spine & back
Vascular
- Carotid Artery Blockage
- Deep vein thrombosis
Women's health
- Endometriosis
- Pelvic Congestion Syndrome
Procedures & services
Abdominal imaging
- Abdominal X-Ray
Biopsies
- Image-Guided Needle Biopsy
- Thyroid Nodule Biopsy
Bone Density
- Bone Density Scan Referral
Breast Imaging
- Breast MRI
- Breast Ultrasound
- Mammogram
- Ultrasound-Guided Breast Biopsy
CT Scan
- Abdominal CT Scan
- Chest CT Scan
- Emergency CT scan
- Head CT Scan
- Heart Calcium Scan
- Sinus CT Scan
Digestive & liver
- Liver elastography
- Virtual Colonoscopy
Fluoroscopy
- Barium Swallow
General imaging
- Fluoroscopy
- Soft tissue ultrasound
Heart & blood vessels
- Cardiac magnetic resonance imaging
- CT angiogram
- MR Angiogram
Joint & bone
- Hip X-Ray
- Joint injection with dye
- Knee X-Ray
- Wrist MRI
MRI
- Ankle MRI
- Back MRI
- Brain MRI
- Hip MRI
- Knee MRI
- MRI Scan
- Neck MRI
- Open MRI
- Prostate MRI
- Shoulder MRI
Nuclear Medicine
- PET Scan
Pelvic imaging
- Pelvic CT Scan
- Pelvic MRI
Screening & Prevention
- Full Body Scan
- Low-Dose Lung CT
Spine & back
- Spine CT Scan
Ultrasound
- Abdominal Ultrasound
- Carotid Ultrasound
- Leg Vein Ultrasound
- Pelvic ultrasound
- Scrotal Ultrasound
- Thyroid ultrasound
- Ultrasound
Urinary & kidney
- Kidney ultrasound
Women's health
- Hysterosalpingogram consultation
X-Ray
- Chest X-Ray
- Emergency X-ray
- Spine X-Ray
Procedures Most Often Billed to Medicare
3,359 services · 3,302 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Screening mammography | Imaging | 77067 |
543 | More often than most peers in Diagnostic Radiology |
| Screening 3d breast mammography | Imaging | 77063 |
541 | More often than most peers in Diagnostic Radiology |
| Dxa bone density measurement of hip, pelvis, spine | Imaging | 77080 |
465 | More than most peers in Diagnostic Radiology |
| X-ray of chest, 1 view | Imaging | 71045 |
421 | As often as other peers in Diagnostic Radiology |
| Dxa bone density measurement of hip, pelvis, spine | Imaging | 77080 |
179 | More than most peers in Diagnostic Radiology |
| Ct scan of chest without contrast | Imaging | 71250 |
110 | More often than most peers in Diagnostic Radiology |
| X-ray of knee, 4 or more views | Imaging | 73564 |
109 | More often than most peers in Diagnostic Radiology |
| X-ray of knee, 1-2 views | Imaging | 73560 |
79 | More often than most peers in Diagnostic Radiology |
| X-ray of chest, 2 views | Imaging | 71046 |
79 | As often as other peers in Diagnostic Radiology |
| X-ray of shoulder, minimum of 2 views | Imaging | 73030 |
78 | More often than most peers in Diagnostic Radiology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other radiologists 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 radiologists in Marble Falls 2
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.
Common questions
What does John W. Calder specialize in?
John W. Calder is a radiologist in Marble Falls, TX. That is the designation recorded for this NPI in the federal registry, where it is listed as “Diagnostic Radiology”.
NPI registry
Where is John W. Calder located?
John W. 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 John W. Calder's phone number?
The number on file is (830) 201-8000. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for John W. Calder?
John W. 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 John W. Calder train?
John W. 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 John W. Calder have?
John W. Calder has 27 years experience. Calculated from a graduation year of 1999, reported in the CMS National Downloadable File.
CMS public data
What does John W. Calder do most often?
According to Medicare billing data, John W. 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 John W. Calder's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by John W. Calder. If this is you, claiming it is free.
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