Dr. David Mack, M.D.
What this data tells you about Dr. Mack
Dr. David Mack is a sports medicine physician in Houston, TX, with 19 years of NPI registration. Based on federal Medicare data, Dr. Mack performed 2,677 Medicare services across 1,604 unique beneficiaries.
Between the years covered by Open Payments, Dr. Mack received a total of $9,558 from 17 pharmaceutical and/or device companies across 73 individual payments. These payments are legal, publicly disclosed under the federal Sunshine Act, and common in sports medicine (orthopaedic 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. Mack 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) A follow-up office visit for an existing patient lasting between 30 and 39 minutes. The visit involves medical evaluation and management of the patient's condition. |
328 | $92 | $338 |
| Office visit, established patient (20-29 min) An office visit for an existing patient lasting between 20 and 29 minutes. The visit involves medical evaluation and management of the patient's condition. |
308 | $67 | $233 |
| Knee X-ray, 4 or more views An imaging test using X-rays to create multiple pictures of the knee joint from different angles. |
296 | $34 | $139 |
| Methylprednisolone acetate injection, 80 mg An injection of 80 mg of methylprednisolone acetate, a corticosteroid medication. |
234 | $9 | $30 |
| Ultrasound-guided large joint aspiration or injection This procedure uses ultrasound imaging to guide the removal of fluid from or the injection of medication into a large joint. |
193 | $80 | $324 |
| Physical therapy exercise, per 15 min A therapy session using exercises to improve strength, endurance, range of motion, and flexibility. Each 15-minute unit is billed separately. |
187 | $18 | $96 |
| Manual therapy (hands-on treatment), per 15 min | 186 | $16 | $88 |
| Neuromuscular re-education therapy, per 15 min A therapy procedure designed to re-educate the functional connection between the brain, nerves, and muscles. It is billed in 15-minute increments. |
173 | $23 | $111 |
| Shoulder X-ray, 2+ views An X-ray imaging test of the shoulder joint using at least two different angles to visualize the bones and surrounding structures. |
149 | $25 | $102 |
| Group therapy session A therapeutic session conducted with multiple patients simultaneously. This code covers the provision of therapy services in a group setting. |
129 | $11 | $58 |
| New patient office visit (30-44 min) An initial office visit for a new patient lasting between 30 and 44 minutes. This code is used when the total time spent on the date of the encounter falls within this range. |
90 | $71 | $334 |
| New patient office visit (45-59 min) An initial office visit for a new patient lasting between 45 and 59 minutes. This code covers the total time spent by the physician or qualified healthcare professional on the date of the encounter. |
88 | $112 | $510 |
| Functional activity therapy A therapy procedure that utilizes functional activities as part of the treatment process. |
67 | $26 | $124 |
| Joint injection, major joint Removal of fluid from a large joint and/or injection of medication into the joint space. |
63 | $52 | $250 |
| Knee X-ray, 3 views An X-ray imaging test of the knee joint that captures three different angles to evaluate the bones and surrounding structures. |
57 | $32 | $121 |
| Total knee replacement | 46 | $1,053 | $4,293 |
| Injection, methylprednisolone acetate, 40 mg | 44 | $6 | $15 |
| Arthroscopic removal of knee cartilage A minimally invasive surgical procedure to remove damaged or loose pieces of cartilage from the knee joint using a small camera and instruments inserted through tiny incisions. |
13 | $423 | $1,712 |
| Knee X-ray, 1-2 views An X-ray imaging test of the knee joint using one to two different angles to visualize the bones and surrounding structures. |
13 | $28 | $104 |
| Evaluation for physical therapy, typically 20 minutes | 13 | $77 | $269 |
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 (72%) are for meals and travel — low-value interactions that are common across virtually all practicing physicians.
Geographic Context
4.1 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. Mack is a clinical cardiology specialist, with above-average Medicare volume (top 29% in TX), with low-engagement industry engagement, with 19 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
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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.
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