Quick answers
- Does Les T. Sandknop accept Medicare assignment?
- Yes. Medicare's clinician data says Les T. Sandknop accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of October 2, 2026. Ask the office to confirm before your visit.
- How many Medicare patients does Les T. Sandknop see?
- In 2024, CMS data shows 1,260 Original Medicare patients and 9,250 services for Les T. Sandknop. This counts Original Medicare only and measures volume, not quality.
- What is Les T. Sandknop's NPI number?
- 1336139807. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Medicare activity in 2024
Official CMS public-use data for Les T. Sandknop, data year 2024 (released May 21, 2026). It covers Original Medicare (fee-for-service) patients only, not Medicare Advantage or other insurance. It shows volume, not quality or outcomes. CMS hides any count of 10 or fewer patients.
| Original Medicare patients | 1,260 |
|---|---|
| Services billed to Medicare | 9,250 |
| Different services or procedures | 61 |
| Participating Medicare provider | Yes |
| Average age of these patients | 74 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)3,397 services
- Complex chronic care management services for two or more chronic conditions, first 60 minutes of clinical staff time directed by health care professional, per calendar month (99487)2,594 services
- Injection, dexamethasone sodium phosphate, 1 mg (J1100)611 services
- Management using the results of remote vital sign monitoring per calendar month, first 20 minutes (99457)280 services
- Annual depression screening, 5 to 15 minutes (G0444)237 services
Chronic conditions among these patients
Share of this clinician’s Original Medicare patients with each condition, as published by CMS (it describes the patients, not the care given).
- High cholesterol75%
- High blood pressure74%
- Arthritis47%
- Anxiety27%
- Diabetes26%
- Depression24%
Hospitals where Les T. Sandknop works
Medicare's Facility Affiliation Data lists Les T. Sandknop at these hospitals (updated October 2, 2026). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians. Star rating and emergency services: Hospital General Information (CMS), data updated October 26, 2026.
- Baylor Scott and White Medical Center Lake PointeRowlett, TX · Acute Care Hospital · Medicare rating: 4 of 5 stars · Emergency services: listed by Medicare · CCN 450742
- Hunt Regional Medical CenterGreenville, TX · Acute Care Hospital · Medicare rating: 2 of 5 stars · Emergency services: listed by Medicare · CCN 450352
- Texas Health Presbyterian Hospital RockwallRockwall, TX · Acute Care Hospital · Medicare rating: 5 of 5 stars · Emergency services: listed by Medicare · CCN 670044
Practice locations
Addresses where Les T. Sandknop is enrolled with Medicare (CMS data updated October 2, 2026).
- 1005 W Ralph Hall Pkwy, Suite 221Rockwall, TX 75032 (972) 771‑9000
- 800 College PkwyLewisville, TX 75077 (972) 420‑8543
Group practices
Medicare enrollment lists Les T. Sandknop as a member of these groups (CMS data updated October 2, 2026).
- Legacy Healthcare Services Inc3,223 clinicians in the group
- Les T. Sandknop, D.O. PA11 clinicians in the group
Specialties
- Family Practiceprimary
Other family doctors in Rockwall
Clinicians with the same Medicare primary specialty in Rockwall, TX — not a recommendation.
Other clinicians in Legacy Healthcare Services Inc
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | DO |
|---|---|
| Medical school | At Still University Of Health Sciences, College Of Osteo Med, Kirksville |
| Graduation year | 1978 (48 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1336139807 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated October 2, 2026, retrieved October 29, 2026
- Hospital General Information — CMS, data updated October 26, 2026, retrieved November 13, 2026
- National Downloadable File (Doctors and Clinicians) — CMS, data updated October 2, 2026, retrieved October 29, 2026
- Medicare Physician & Other Practitioners - by Provider — CMS, data year 2024, released May 21, 2026; Medicare Physician & Other Practitioners - by Provider and Service
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians