Dr. Michael C. Siah
Vascular Surgery (Vascular Surgery Physician)
- Medicare participating
At a glance
- Years since graduation
- 12
- In the NPI registry since
- 2014
- Medicare patients seen, 2024
- 328
Licensed in Texas since 2019, 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. What an NPI is
Education and training
- 2014Registered with an NPI (national billing number; not a license date)
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
-
Vascular Surgery Physician primary
TX license S3065 (first issued 2019; active) - Student in an Organized Health Care Education/Training Program
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Ut of Texas Southwestern University Hospital - William P. Clements Jr. Dallas, TX
- Texas Health Presbyterian Hospital Dallas Dallas, TX
Medical groups
- University of Texas Southwestern Medical Center at Dallas (3,187 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
- 328
- Services billed
- 951
- Patients’ average age
- 74
| Service | Times | Patients |
|---|---|---|
| Established patient office or other outpatient visit, 10-19 minutes | 112 | 79 |
| Review by radiologist of arm or leg artery image | 101 | 79 |
| Established patient office or other outpatient visit, 20-29 minutes | 82 | 70 |
| Ultrasound study of arm and leg arteries | 66 | 65 |
| Ultrasound evaluation of blood vessel with review by radiologist, each additional vessel | 66 | 24 |
| New patient office or other outpatient visit, 45-59 minutes | 43 | 43 |
| Ultrasound of both sides of head and neck blood flow | 42 | 42 |
| Ultrasound evaluation of blood vessel with review by radiologist, initial vessel | 36 | 34 |
| Ultrasound study of arm or leg veins with compression and maneuvers | 35 | 35 |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 28 | 26 |
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.
Medicare prescriptions
| Drug | Prescriptions |
|---|---|
| Eliquis (apixaban) Other prescribers in Dallas, TX | 27 |
| Clopidogrel (clopidogrel bisulfate) Other prescribers in Dallas, TX | 27 |
| Xarelto (rivaroxaban) Other prescribers in Dallas, TX | 24 |
| Oxycodone Hcl Other prescribers in Dallas, TX | 16 |
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.
Payments from drug and device companies
In 2025, 27 companies reported 244 payments worth $179,687 in total to this clinician.
| Stryker Corporation | $95,694 |
|---|---|
| Reflow Medical Inc | $18,421 |
| Shockwave Medical, Inc | $16,788 |
| Abbott Laboratories | $14,729 |
| Medtronic, Inc. | $10,947 |
| Cagent Vascular Inc | $10,469 |
| Inari Medical, Inc. | $6,570 |
| Cook Incorporated | $2,550 |
| Consulting Fee | $113,388 |
|---|---|
| Travel and Lodging | $41,331 |
| Food and Beverage | $10,819 |
| Compensation for services other than consulting (speaking, faculty) | $10,300 |
| Speaking at a medical education program | $3,850 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Stryker Corporation Apr 23, 2025 | Consulting Fee CT THROMBECTOMY SYSTEM KIT; FLOWTRIEVER CATHETER, S · VTE | $12,800 |
| Stryker Corporation May 30, 2025 | Consulting Fee CT THROMBECTOMY SYSTEM KIT; FLOWTRIEVER CATHETER, S · VTE | $10,500 |
| Reflow Medical Inc Jan 3, 2025 | Travel and Lodging travel to leipzig, Germany | $10,365 |
| Stryker Corporation Apr 1, 2025 | Consulting Fee CT THROMBECTOMY SYSTEM KIT; FLOWTRIEVER CATHETER, S · VTE | $10,000 |
| Stryker Corporation May 30, 2025 | Consulting Fee CT THROMBECTOMY SYSTEM KIT; FLOWTRIEVER CATHETER, S · VTE | $8,000 |
| Stryker Corporation Dec 17, 2025 | Consulting Fee CT THROMBECTOMY SYSTEM KIT; FLOWTRIEVER CATHETER, S · VTE | $8,000 |
| Shockwave Medical, Inc Sep 18, 2025 | Consulting Fee Shockwave IVL System with the Shockwave C2 Coronary IVL Catheter · Cardiology | $7,700 |
| Stryker Corporation Dec 12, 2025 | Travel and Lodging CT THROMBECTOMY SYSTEM KIT; FLOWTRIEVER CATHETER, S · VTE · travel to BOSTON, MA | $6,633 |
| Stryker Corporation Sep 19, 2025 | Consulting Fee CT THROMBECTOMY SYSTEM KIT; FLOWTRIEVER CATHETER, S · VTE | $6,100 |
| Medtronic, Inc. Apr 18, 2025 | Consulting Fee | $5,000 |
All 79 payments other than meals, newest first
| Company | What it was for | Amount |
|---|---|---|
| Stryker Corporation Dec 17, 2025 | Consulting Fee CT THROMBECTOMY SYSTEM KIT; FLOWTRIEVER CATHETER, S · VTE | $8,000 |
| Stryker Corporation Dec 17, 2025 | Consulting Fee CT THROMBECTOMY SYSTEM KIT; FLOWTRIEVER CATHETER, S · VTE | $2,500 |
| Stryker Corporation Dec 12, 2025 | Travel and Lodging CT THROMBECTOMY SYSTEM KIT; FLOWTRIEVER CATHETER, S · VTE · travel to BOSTON, MA | $6,633 |
| Medtronic, Inc. Dec 12, 2025 | Compensation for services other than consulting (speaking, faculty) | $4,000 |
| Stryker Corporation Dec 12, 2025 | Travel and Lodging CT THROMBECTOMY SYSTEM KIT; FLOWTRIEVER CATHETER, S · VTE · travel to BOSTON, MA | $280 |
| Stryker Corporation Dec 10, 2025 | Travel and Lodging CT THROMBECTOMY SYSTEM KIT · INARI MEDICAL · travel to ORLANDO, FL | $185 |
| Stryker Corporation Dec 9, 2025 | Travel and Lodging CT THROMBECTOMY SYSTEM KIT · INARI MEDICAL · travel to PARIS, France | $540 |
| Stryker Corporation Dec 5, 2025 | Travel and Lodging CT THROMBECTOMY SYSTEM KIT · INARI MEDICAL · travel to TULSA, OK | $1,108 |
| Stryker Corporation Dec 1, 2025 | Travel and Lodging CT THROMBECTOMY SYSTEM KIT · INARI MEDICAL · travel to TULSA, OK | $1,698 |
| Abbott Laboratories Nov 27, 2025 | Speaking at a medical education program ESPRIT · Vascular | $1,100 |
| Abbott Laboratories Nov 27, 2025 | Consulting Fee ESPRIT · Vascular | $1,100 |
| Abbott Laboratories Nov 27, 2025 | Speaking at a medical education program ESPRIT · Vascular | $550 |
| Abbott Laboratories Nov 27, 2025 | Consulting Fee ESPRIT · Vascular | $550 |
| Cagent Vascular Inc Nov 25, 2025 | Consulting Fee Serrantor · PNO | $2,000 |
| Abbott Laboratories Nov 6, 2025 | Consulting Fee XIENCE SKYPOINT · Structural Heart | $1,375 |
| Stryker Corporation Nov 2, 2025 | Travel and Lodging CT THROMBECTOMY SYSTEM KIT · INARI MEDICAL · travel to LAS VEGAS, NV | $254 |
| Stryker Corporation Nov 2, 2025 | Travel and Lodging CT THROMBECTOMY SYSTEM KIT · INARI MEDICAL · travel to LAS VEGAS, NV | $20.41 |
| Stryker Corporation Oct 21, 2025 | Consulting Fee FLOWTRIEVER CATHETER, S; CT THROMBECTOMY SYSTEM KIT · VTE | $5,000 |
| Stryker Corporation Oct 21, 2025 | Consulting Fee CT THROMBECTOMY SYSTEM KIT; FLOWTRIEVER CATHETER, S · VTE | $1,500 |
| Stryker Corporation Oct 11, 2025 | Travel and Lodging LIMFLOW SYSTEM · INARI MEDICAL · travel to IRVINE, CA | $670 |
| Stryker Corporation Oct 9, 2025 | Travel and Lodging CT THROMBECTOMY SYSTEM KIT; FLOWTRIEVER CATHETER, S · VTE · travel to IRVINE, CA | $979 |
| Cagent Vascular Inc Sep 30, 2025 | Consulting Fee Serrantor · PNO | $600 |
| Cagent Vascular Inc Sep 30, 2025 | Consulting Fee Serrantor · PNO | $400 |
| Cagent Vascular Inc Sep 30, 2025 | Consulting Fee Serrantor · PNO | $200 |
| Stryker Corporation Sep 19, 2025 | Consulting Fee CT THROMBECTOMY SYSTEM KIT; FLOWTRIEVER CATHETER, S · VTE | $6,100 |
| Stryker Corporation Sep 19, 2025 | Consulting Fee CT THROMBECTOMY SYSTEM KIT; FLOWTRIEVER CATHETER, S · VTE | $4,000 |
| Stryker Corporation Sep 19, 2025 | Travel and Lodging CT THROMBECTOMY SYSTEM KIT; FLOWTRIEVER CATHETER, S · VTE · travel to CHICAGO, IL | $743 |
| Shockwave Medical, Inc Sep 18, 2025 | Consulting Fee Shockwave IVL System with the Shockwave C2 Coronary IVL Catheter · Cardiology | $7,700 |
| Shockwave Medical, Inc Sep 18, 2025 | Consulting Fee Shockwave IVL System with the Shockwave C2 Coronary IVL Catheter · Cardiology | $3,300 |
| Shockwave Medical, Inc Sep 18, 2025 | Consulting Fee Shockwave IVL System with the Shockwave C2 Coronary IVL Catheter · Cardiology | $2,200 |
| Shockwave Medical, Inc Sep 18, 2025 | Consulting Fee Shockwave IVL System with the Shockwave C2 Coronary IVL Catheter · Cardiology | $550 |
| Shockwave Medical, Inc Sep 18, 2025 | Consulting Fee Shockwave IVL System with the Shockwave C2 Coronary IVL Catheter · Cardiology | $550 |
| Shockwave Medical, Inc Sep 18, 2025 | Consulting Fee Shockwave IVL System with the Shockwave C2 Coronary IVL Catheter · Cardiology | $550 |
| Shockwave Medical, Inc Sep 18, 2025 | Consulting Fee Shockwave IVL System with the Shockwave C2 Coronary IVL Catheter · Cardiology | $550 |
| Abbott Laboratories Sep 12, 2025 | Consulting Fee XIENCE SKYPOINT · Structural Heart | $1,375 |
| Abbott Laboratories Sep 3, 2025 | Consulting Fee XIENCE SKYPOINT · Structural Heart | $1,100 |
| Philips North America LLC Aug 13, 2025 | Consulting Fee IGT Devices Undivided · Medical Device | $400 |
| Bard Peripheral Vascular, Inc. Aug 7, 2025 | Consulting Fee | $288 |
| Abbott Laboratories Jul 8, 2025 | Consulting Fee ESPRIT · Vascular | $1,100 |
| Abbott Laboratories Jul 8, 2025 | Speaking at a medical education program ESPRIT · Vascular | $550 |
| Reflow Medical Inc Jul 7, 2025 | Travel and Lodging travel to Kuala Lumpur, Singapore | $4,917 |
| Stryker Corporation Jun 24, 2025 | Consulting Fee FLOWTRIEVER CATHETER, S; CT THROMBECTOMY SYSTEM KIT · VTE | $4,500 |
| Stryker Corporation Jun 21, 2025 | Travel and Lodging FLOWTRIEVER CATHETER, S; CT THROMBECTOMY SYSTEM KIT · VTE · travel to PHOENIX, AZ | $1,238 |
| Stryker Corporation Jun 21, 2025 | Travel and Lodging CT THROMBECTOMY SYSTEM KIT; FLOWTRIEVER CATHETER, S · VTE · travel to PHOENIX, AZ | $400 |
| Stryker Corporation May 30, 2025 | Consulting Fee CT THROMBECTOMY SYSTEM KIT; FLOWTRIEVER CATHETER, S · VTE | $10,500 |
| Stryker Corporation May 30, 2025 | Consulting Fee CT THROMBECTOMY SYSTEM KIT; FLOWTRIEVER CATHETER, S · VTE | $8,000 |
| Stryker Corporation May 30, 2025 | Consulting Fee CT THROMBECTOMY SYSTEM KIT; FLOWTRIEVER CATHETER, S · VTE | $1,500 |
| Stryker Corporation May 22, 2025 | Travel and Lodging CT THROMBECTOMY SYSTEM KIT; FLOWTRIEVER CATHETER, S · VTE · travel to HOUSTON, TX | $1,110 |
| Cook Incorporated May 14, 2025 | Compensation for services other than consulting (speaking, faculty) ZILVER 518 · Peripheral Intervention | $2,550 |
| Stryker Corporation May 2, 2025 | Travel and Lodging CT THROMBECTOMY SYSTEM KIT; FLOWTRIEVER CATHETER, S · VTE · travel to HOUSTON, TX | $1,569 |
| Stryker Corporation May 2, 2025 | Travel and Lodging CT THROMBECTOMY SYSTEM KIT; FLOWTRIEVER CATHETER, S · VTE · travel to HOUSTON, TX | $483 |
| Cagent Vascular Inc Apr 29, 2025 | Travel and Lodging Serrantor · PNO · travel to London, Great Britain (UK) | $3,000 |
| Stryker Corporation Apr 24, 2025 | Travel and Lodging FLOWTRIEVER CATHETER, S; CT THROMBECTOMY SYSTEM KIT · VTE · travel to PORTLAND, OR · in-kind | $209 |
| Stryker Corporation Apr 23, 2025 | Consulting Fee CT THROMBECTOMY SYSTEM KIT; FLOWTRIEVER CATHETER, S · VTE | $12,800 |
| Medtronic, Inc. Apr 18, 2025 | Consulting Fee | $5,000 |
| Medtronic, Inc. Apr 16, 2025 | Travel and Lodging travel to Nashville, TN · in-kind | $64.04 |
| Medtronic, Inc. Apr 15, 2025 | Travel and Lodging travel to Nashville, TN · in-kind | $58.61 |
| Medtronic, Inc. Apr 14, 2025 | Travel and Lodging travel to Nashville, TN · in-kind | $279 |
| Medtronic, Inc. Apr 14, 2025 | Travel and Lodging travel to Nashville, TN · in-kind | $49.23 |
| Stryker Corporation Apr 1, 2025 | Consulting Fee CT THROMBECTOMY SYSTEM KIT; FLOWTRIEVER CATHETER, S · VTE | $10,000 |
| Cagent Vascular Inc Apr 1, 2025 | Consulting Fee Serrantor · PNO | $3,000 |
| Stryker Corporation Mar 31, 2025 | Travel and Lodging FLOWTRIEVER CATHETER, S; CT THROMBECTOMY SYSTEM KIT · VTE · travel to FORT WORTH, TX · in-kind | $467 |
| Medtronic, Inc. Mar 27, 2025 | Travel and Lodging MO.MA ULTRA · Embolic Protection Devices · travel to Nashville, TN · in-kind | $427 |
| Medtronic, Inc. Mar 27, 2025 | Travel and Lodging MO.MA ULTRA · Embolic Protection Devices · travel to Nashville, TN · in-kind | $4.68 |
| Abbott Laboratories Jan 30, 2025 | Speaking at a medical education program ESPRIT · Vascular | $1,650 |
| Abbott Laboratories Jan 30, 2025 | Consulting Fee ESPRIT · Vascular | $1,650 |
| Abbott Laboratories Jan 30, 2025 | Travel and Lodging ESPRIT · Vascular · travel to Memphis, TN · in-kind | $825 |
| Abbott Laboratories Jan 30, 2025 | Travel and Lodging ESPRIT · Vascular · travel to Nashville, TN · in-kind | $52.97 |
| Abbott Laboratories Jan 30, 2025 | Travel and Lodging ESPRIT · Vascular · travel to Memphis, TN · in-kind | $9.02 |
| Reflow Medical Inc Jan 27, 2025 | Consulting Fee | $1,800 |
| Inari Medical, Inc. Jan 24, 2025 | Compensation for services other than consulting (speaking, faculty) CT THROMBECTOMY SYSTEM KIT; FLOWTRIEVER CATHETER, S · VTE | $3,750 |
| Inari Medical, Inc. Jan 24, 2025 | Travel and Lodging CT THROMBECTOMY SYSTEM KIT; FLOWTRIEVER CATHETER, S · VTE · travel to HARTFORD, CT | $1,026 |
| Inari Medical, Inc. Jan 24, 2025 | Travel and Lodging CT THROMBECTOMY SYSTEM KIT; FLOWTRIEVER CATHETER, S · VTE · travel to HARTFORD, CT | $573 |
| Inari Medical, Inc. Jan 24, 2025 | Travel and Lodging CT THROMBECTOMY SYSTEM KIT; FLOWTRIEVER CATHETER, S · VTE · travel to HARTFORD, CT | $545 |
| Reflow Medical Inc Jan 17, 2025 | Travel and Lodging travel to San Clemente, CA | $459 |
| Reflow Medical Inc Jan 17, 2025 | Travel and Lodging travel to San Clemente, CA | $35.00 |
| Abbott Laboratories Jan 8, 2025 | Consulting Fee ESPRIT · Vascular | $1,650 |
| Reflow Medical Inc Jan 3, 2025 | Travel and Lodging travel to leipzig, Germany | $10,365 |
| Reflow Medical Inc Jan 3, 2025 | Travel and Lodging travel to leipzig, Germany | $55.00 |
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 6 industry-funded studies in 2025, from 6 companies. The companies reported $133,533 in research payments for these studies, mostly to the institutions running them.
- NCT06656364--Esprit BTK Post-Approval Study
Abbott Laboratories - The THOR IDE Study
Philips North America LLC · Recruiting · NCT05916950 - POINT FORCE Registry
Cagent Vascular Inc - Drug-Eluting Registry: Real-World Treatment of Lesions in the Peripheral Vasculature
Boston Scientific Corporation · Recruiting · NCT04674969 - DEFIANCE: RCT of ClotTriever System Versus Anticoagulation In Deep Vein Thrombosis
Stryker Corporation · Recruiting · NCT05701917 - Forward-Shifted Intravascular Lithotripsy (IVL) Technology in a Prospective, Multi-center, Single-arm Investigational Device Exemption (IDE) Study
Shockwave Medical, Inc
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.