Dr. Randall Marx, M.D.
What this data tells you about Dr. Marx
Dr. Randall Marx is an orthopaedic foot and ankle surgery physician in San Antonio, TX, with 18 years of NPI registration. Based on federal Medicare data, Dr. Marx performed 4,612 Medicare services across 3,037 unique beneficiaries.
Between the years covered by Open Payments, Dr. Marx received a total of $2,852 from 4 pharmaceutical and/or device companies across 26 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in orthopaedic foot and ankle surgery physician. Most payments are for meals and travel — low-value interactions common across virtually all practicing physicians. Patients may wish to discuss these relationships with their provider.
The Data Coverage level for Dr. Marx is Very High — reflecting how much public federal data is available about this provider. This is not a quality rating. Patients are encouraged to use this data as one of several factors when choosing a healthcare provider.
Medicare Practice Summary
Medicare Utilization ↗Top procedures by volume
Ranked by number of services performed for Medicare patients. Avg. submitted charge is what the provider billed; avg. Medicare payment is what CMS paid.
| Procedure | Volume | Avg. paid | Avg. submitted |
|---|---|---|---|
| Office visit, established patient (30-39 min) | 874 | $88 | $262 |
| Steroid injection (triamcinolone) | 872 | $1 | $25 |
| Foot X-ray, 3+ views | 540 | $24 | $84 |
| X-ray of ankle, minimum of 3 views | 316 | $27 | $91 |
| Aspiration and/or injection of fluid large joint using ultrasound guidance | 245 | $79 | $573 |
| New patient office visit (45-59 min) | 242 | $102 | $400 |
| Office visit, established patient (20-29 min) | 238 | $64 | $178 |
| Knee X-ray, 3 views | 193 | $30 | $103 |
| Hyaluronan or derivative, monovisc, for intra-articular injection, per dose | 122 | $556 | $1,500 |
| Joint injection, major joint | 95 | $51 | $174 |
| Cast supplies, short leg splint, adult (11 years +), fiberglass | 95 | $17 | $24 |
| Mri scan of leg joint without contrast | 64 | $108 | $679 |
| Hip X-ray, 2-3 views | 63 | $34 | $119 |
| Shoulder X-ray, 2+ views | 62 | $25 | $84 |
| Application of short leg cast | 55 | $59 | $160 |
| Injection, ketorolac tromethamine, per 15 mg | 50 | $0 | $29 |
| X-ray of knee, 4 or more views | 48 | $32 | $114 |
| X-ray of lower and sacral spine, minimum of 4 views | 45 | $39 | $141 |
| Correction of toe joint deformity | 38 | $149 | $2,638 |
| Aspiration and/or injection of fluid from medium joint | 36 | $36 | $126 |
| Application of walking cast covering below knee to toe | 33 | $56 | $153 |
| Drug injection, under skin or into muscle | 31 | $11 | $61 |
| Ct scan of leg without contrast | 25 | $65 | $464 |
| Mri scan of leg without contrast | 25 | $134 | $833 |
| X-ray of wrist, minimum of 3 views | 21 | $28 | $102 |
| X-ray of hand, minimum of 3 views | 20 | $24 | $89 |
| Removal of noncancer thickened skin growth, 1 growth | 17 | $52 | $115 |
| Injection into tendon or ligament | 17 | $43 | $144 |
| Harvest of graft from small bone | 17 | $70 | $2,004 |
| X-ray of toe, minimum of 2 views | 17 | $21 | $80 |
| X-ray of elbow, minimum of 3 views | 16 | $25 | $90 |
| Transfer of deep tendon of foot with muscle rerouting | 15 | $423 | $3,679 |
| X-ray of upper spine, 4-5 views | 14 | $36 | $131 |
| New patient office visit (30-44 min) | 14 | $81 | $262 |
| Mri scan of arm joint without contrast | 13 | $120 | $680 |
| X-ray of lower and sacral spine, 2-3 views | 12 | $29 | $101 |
| Cast supplies, short arm splint, adult (11 years +), fiberglass | 12 | $10 | $16 |
Industry Payment Transparency
Open Payments through 2024 ↗Payment profile
Industry payments classified by relationship type. Not all payments are equal — research and consulting reflect different relationships than speaking programs or meals.
Payment trend by year
Annual totals from pharmaceutical and medical device companies.
Payments by company (2024)
Associated products mentioned in payments ›
Most payments (100%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
0.0 mi
Data Sources
| Provider Registry | ✓ NPPES | Weekly updates |
| Medicare Enrollment | ✓ PECOS | Monthly updates |
| Practice Data | ✓ Medicare Util. | Annual (CY lag) |
| Industry Payments | ✓ Open Payments | CY 2024 |
| Disciplinary History | — Not public | N/A |
This provider has data in 4 of 4 available federal datasets, with a Data Coverage level of Very High. This measures how much public data is available about a provider — not how good they are. How we calculate this →
Summary
Dr. Marx is a clinical cardiology specialist, with above-average Medicare volume (top 2% in TX), with low-engagement industry engagement, with 18 years of NPI registration.
This summary is auto-generated from federal data. It describes data availability and patterns — not clinical quality. Read our methodology →
Frequently Asked Questions
Is Dr. Marx experienced with office visit, established patient (30-39 min)?
Does Dr. Marx receive payments from pharmaceutical companies?
How do Dr. Marx's costs compare to other orthopaedic foot and ankle surgery physicians in San Antonio?
What does Data Coverage mean?
Is this data up to date?
Explore related providers
All data on this page is sourced verbatim from public federal records published by the U.S. Centers for Medicare & Medicaid Services (CMS): NPPES ↗, Open Payments ↗, Medicare Provider Utilization ↗, and PECOS. Publication is mandated by the Physician Payments Sunshine Act (§6002 ACA, 42 U.S.C. §1320a-7h) and the Freedom of Information Act.
This page is not medical advice, an endorsement, a recommendation, or a quality rating. The Transparency Score measures data completeness — how much federal information exists for this provider — not clinical performance, patient outcomes, or quality of care. Always verify information directly with the provider and consult a licensed clinician before making medical decisions.
Provider corrections: Provider portal · Privacy questions: Privacy Policy · Terms: Terms of Use · Methodology: Methodology