Dr. Michael B. Silva JR., MD
General Surgery (Surgery Physician)
301 University Blvd
Galveston, TX 77555
Who else practices at this address →
Galveston County includes primary care (1% of residents) shortage areas. About shortage areas
- Medicare participating
At a glance
- Years since graduation
- 42
- In the NPI registry since
- 2007
- Medicare patients seen, 2024
- 689
Licensed in Texas since 1986, according to the Texas Medical Board. We show license dates only for the states that publish them in bulk; see which states do. For other states, check the state medical board.
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is
Education and training
- 2007Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
Medicare’s Care Compare data doesn’t list this clinician’s medical school. Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Surgery Physician primary
TX license G9917 (first issued 1986; active) -
Vascular & Interventional Radiology Physician
TX license G9917 (first issued 1986; active) -
Vascular Surgery Physician
ID license 8961073 · TX license G9917 (first issued 1986; active)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Presbyterian Hospital Albuquerque, NM
- Saint Alphonsus Regional Medical Center Boise, ID
- University of Texas Medical Branch Galveston Galveston, TX
Medical groups
- Presbyterian Healthcare Services (1,395 clinicians)
- Utmb Faculty Group Practice (1,101 clinicians)
- Saint Alphonsus Regional Medical Center Inc (680 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 689
- Services billed
- 1,048
- Patients’ average age
- 74
| Service | Times | Patients |
|---|---|---|
| Ultrasound study of arm or leg veins with compression and maneuvers | 59 | 59 |
| Complete ultrasound study of arm and leg arteries | 55 | 54 |
| Established patient office or other outpatient visit, 20-29 minutes | 53 | 46 |
| Ultrasound study of one arm or leg veins with compression and maneuvers | 43 | 40 |
| Ultrasound of both sides of head and neck blood flow | 43 | 43 |
| Ultrasound of leg arteries or artery grafts | 27 | 27 |
| Established patient office or other outpatient visit, 30-39 minutes | 23 | 22 |
| New patient office or other outpatient visit, 30-44 minutes | 18 | 18 |
| Ultrasound of one leg arteries or artery grafts | 17 | 15 |
| Established patient office or other outpatient visit, 10-19 minutes | 15 | 14 |
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.
Payments from drug and device companies
In 2025, 8 companies reported 35 payments worth $5,977 in total to this clinician.
| Endologix LLC | $4,821 |
|---|---|
| Surmodics, Inc. | $423 |
| Philips North America LLC | $331 |
| Shockwave Medical, Inc | $227 |
| Cook Medical LLC | $65.53 |
| W. L. Gore & Associates, Inc. | $63.98 |
| Abbott Laboratories | $28.37 |
| GE Healthcare | $17.47 |
| Travel and Lodging | $2,574 |
|---|---|
| Food and Beverage | $2,152 |
| Consulting Fee | $1,250 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Endologix LLC Jun 4, 2025 | Consulting Fee Alto Abdominal Stent Graft System · Cardiology/Vascular Diseases Company’s description51659 | $1,250 |
| Endologix LLC Apr 5, 2025 | Travel and Lodging Torus Stent Graft System; ENDOCROSS Device · Cardiology/Vascular Diseases · travel to Santa Rosa, CA · in-kind | $822 |
| Endologix LLC Apr 22, 2025 | Travel and Lodging Torus Stent Graft System; ENDOCROSS Device · Cardiology/Vascular Diseases · travel to Santa Rosa, CA · in-kind | $764 |
| Endologix LLC Apr 4, 2025 | Travel and Lodging Torus Stent Graft System; ENDOCROSS Device · Cardiology/Vascular Diseases · travel to Santa Rosa, CA · in-kind | $270 |
| Endologix LLC Apr 3, 2025 | Travel and Lodging Torus Stent Graft System; ENDOCROSS Device · Cardiology/Vascular Diseases · travel to Santa Rosa, CA · in-kind | $249 |
| Philips North America LLC Jul 23, 2025 | Travel and Lodging Azurion 7 M20 · Medical Device · travel to Houston, TX | $246 |
| Endologix LLC Mar 11, 2025 | Travel and Lodging travel to Santa Rosa, CA · in-kind | $82.24 |
| Endologix LLC Mar 11, 2025 | Travel and Lodging travel to Santa Rosa, CA · in-kind | $62.25 |
| Endologix LLC Apr 4, 2025 | Travel and Lodging ENDOCROSS Device; Torus Stent Graft System · Cardiology/Vascular Diseases · travel to Santa Rosa, CA · in-kind | $35.25 |
| Endologix LLC Apr 4, 2025 | Travel and Lodging ENDOCROSS Device; Torus Stent Graft System · Cardiology/Vascular Diseases · travel to Santa Rosa, CA · in-kind | $33.00 |
All 11 payments other than meals, newest first
| Company | What it was for | Amount |
|---|---|---|
| Philips North America LLC Jul 23, 2025 | Travel and Lodging Azurion 7 M20 · Medical Device · travel to Houston, TX | $246 |
| Endologix LLC Jun 4, 2025 | Consulting Fee Alto Abdominal Stent Graft System · Cardiology/Vascular Diseases Company’s description51659 | $1,250 |
| Endologix LLC Apr 22, 2025 | Travel and Lodging Torus Stent Graft System; ENDOCROSS Device · Cardiology/Vascular Diseases · travel to Santa Rosa, CA · in-kind | $764 |
| Endologix LLC Apr 5, 2025 | Travel and Lodging Torus Stent Graft System; ENDOCROSS Device · Cardiology/Vascular Diseases · travel to Santa Rosa, CA · in-kind | $822 |
| Endologix LLC Apr 4, 2025 | Travel and Lodging Torus Stent Graft System; ENDOCROSS Device · Cardiology/Vascular Diseases · travel to Santa Rosa, CA · in-kind | $270 |
| Endologix LLC Apr 4, 2025 | Travel and Lodging ENDOCROSS Device; Torus Stent Graft System · Cardiology/Vascular Diseases · travel to Santa Rosa, CA · in-kind | $35.25 |
| Endologix LLC Apr 4, 2025 | Travel and Lodging ENDOCROSS Device; Torus Stent Graft System · Cardiology/Vascular Diseases · travel to Santa Rosa, CA · in-kind | $33.00 |
| Endologix LLC Apr 3, 2025 | Travel and Lodging Torus Stent Graft System; ENDOCROSS Device · Cardiology/Vascular Diseases · travel to Santa Rosa, CA · in-kind | $249 |
| Endologix LLC Mar 11, 2025 | Travel and Lodging travel to Santa Rosa, CA · in-kind | $82.24 |
| Endologix LLC Mar 11, 2025 | Travel and Lodging travel to Santa Rosa, CA · in-kind | $62.25 |
| Endologix LLC Mar 11, 2025 | Travel and Lodging travel to Santa Rosa, CA · in-kind | $11.20 |
Each payment as the company reported it, with the products it named. Meals are counted in the totals above but not listed one by one.
From CMS Open Payments. A payment is not evidence of wrongdoing; many are for consulting, teaching or meals. Clinicians can review and dispute their records with CMS.
Industry-funded research
Named as a principal investigator on 2 industry-funded studies in 2025, from 2 companies. The companies reported $32,171 in research payments for these studies, mostly to the institutions running them.
- JAGUAR Study
Endologix LLC - Evaluation of the Roadsaver Stent Used in Conjunction With the Nanoparasol Embolic Protection System for Carotid Artery Stenosis
Microvention, Inc. · Status unknown · NCT02657707
From CMS Open Payments research payments, where companies name up to five principal investigators per payment. Research payments usually go to hospitals, universities and research sites, not to the investigator personally. A payment is not evidence of wrongdoing.