Dr. Daniel A. Worrel, M.D.
Orthopedic Surgery (Orthopaedic Surgery Physician)
- Medicare participating
Medicare and federal program status
Opted out of Medicare from December 30, 2024 through December 30, 2026. Medicare does not pay for this clinician’s services: patients with Medicare sign a private contract and pay the clinician directly. They can still order tests and refer Medicare patients to other providers.
Source: CMS Medicare Opt Out Affidavits (record last updated February 15, 2025). Opting out is a legal choice many clinicians make, often to run a cash or concierge practice.
At a glance
- In the NPI registry since
- 2006
- Medicare patients seen, 2024
- 352
Licensed in Texas since 2004, 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
- 2006Registered 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
-
Orthopaedic Surgery Physician primary
TX license L8560 (first issued 2004; active) -
Sports Medicine (Orthopaedic Surgery) Physician
TX license L8560 (first issued 2004; active)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Medicare patients and services
- Medicare patients, 2024
- 352
- Services billed
- 1,944
- Patients’ average age
- 73
| Service | Times | Patients |
|---|---|---|
| Injection, triamcinolone acetonide, not otherwise specified, 10 mg | 347 | 124 |
| X-ray of knee, 4 or more views | 223 | 136 |
| Established patient office or other outpatient visit, 20-29 minutes | 218 | 161 |
| Aspiration and/or injection of fluid from large joint | 216 | 157 |
| X-ray of shoulder, minimum of 2 views | 198 | 121 |
| Established patient office or other outpatient visit, 30-39 minutes | 134 | 121 |
| X-ray of elbow, minimum of 3 views | 62 | 45 |
| Hyaluronan or derivative, gel-one, for intra-articular injection, per dose | 47 | 33 |
| X-ray of upper spine, 4-5 views | 34 | 34 |
| Hyaluronan or derivative, orthovisc, for intra-articular injection, per dose | 33 | 21 |
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 |
|---|---|
| Hydrocodone-Acetaminophen (hydrocodone/acetaminophen) Other prescribers in Dallas, TX | 114 |
| Ondansetron Hcl Other prescribers in Dallas, TX | 83 |
| Celecoxib Other prescribers in Dallas, TX | 58 |
| Diclofenac Sodium Other prescribers in Dallas, TX | 58 |
| Tramadol Hcl Other prescribers in Dallas, TX | 47 |
| Cephalexin Other prescribers in Dallas, TX | 34 |
| Gabapentin Other prescribers in Dallas, TX | 27 |
| Meloxicam Other prescribers in Dallas, TX | 26 |
| Methylprednisolone Other prescribers in Dallas, TX | 13 |
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, 3 companies reported 10 payments worth $1,350 in total to this clinician.
| Stryker Corporation | $1,030 |
|---|---|
| Zimmer Biomet Holdings, Inc. | $276 |
| Bioventus LLC | $44.45 |
| Travel and Lodging | $919 |
|---|---|
| Food and Beverage | $385 |
| Education | $46.78 |
What the payments were for
| Company | What it was for | Amount |
|---|---|---|
| Stryker Corporation Jul 22, 2025 | Travel and Lodging ICONIX · SPORTS MEDICINE · travel to DALLAS, TX | $677 |
| Stryker Corporation Aug 6, 2025 | Travel and Lodging INSPACE · SPORTS MEDICINE · travel to DENVER, CO | $242 |
| Zimmer Biomet Holdings, Inc. Apr 11, 2025 | Education Oxford · Knees · in-kind Company’s descriptionOxford Partial Knee Instructional Course (FDA Required) Dallas 04.11.25 (EID77904) | $46.78 |
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.