Dr. Daniel D. Witheiler, M.D.
Mohs Surgery (MOHS-Micrographic Surgery Physician)
- Medicare participating
At a glance
- Medical school
- University of Texas Southwestern Medical School at Dallas (1991)
- Years since graduation
- 35
- In the NPI registry since
- 2006
- Medicare patients seen, 2024
- 331
Licensed in Texas since 1992, 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
- 1991Medical school: University of Texas Southwestern Medical School at Dallas
- 2006Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
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
-
MOHS-Micrographic Surgery Physician primary
TX license J2420 (first issued 1992; active)
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Methodist Dallas Medical Center Dallas, TX
Medical groups
- Daniel D. Witheiler, M.d. P.a. (2 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
- 331
- Services billed
- 1,741
- Patients’ average age
- 77
| Service | Times | Patients |
|---|---|---|
| Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, 1-5 tissue blocks | 299 | 205 |
| Removal and microscopic exam of growth of head, neck, hands, feet, or genitals, each additional stage, 1-5 tissue blocks | 232 | 125 |
| Established patient office or other outpatient visit, 20-29 minutes | 128 | 107 |
| Biopsy of related skin growth, first growth | 107 | 96 |
| Biopsy of related skin growth, each additional growth | 100 | 40 |
| Destruction of precancer skin growth, 2-14 growths | 88 | 28 |
| Destruction of precancer skin growth, 1 growth | 71 | 54 |
| Pathology examination of specimen during surgery, first tissue block | 58 | 40 |
| Complicated repair of wound of forehead, cheeks, chin, mouth, neck, underarms, genitals, hands, or feet, 2.6-7.5 cm | 43 | 41 |
| New patient office or other outpatient visit, 30-44 minutes | 41 | 41 |
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
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, 10 companies reported 34 payments worth $805 in total to this clinician.
| Genzyme Corporation | $145 |
|---|---|
| UCB, Inc. | $124 |
| Lilly USA, LLC | $118 |
| Arcutis Biotherapeutics, Inc. | $84.96 |
| AbbVie Inc. | $77.33 |
| E.r. Squibb & Sons, L.l.c. | $68.68 |
| Leo Pharma Inc. | $63.46 |
| Botanix Sb Inc | $46.62 |
| Food and Beverage | $805 |
|---|
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.