Quick answers
- Does Billy A. De Los Santos accept Medicare assignment?
- Yes. Medicare's clinician data says Billy A. De Los Santos 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 Billy A. De Los Santos see?
- In 2024, CMS data shows 55 Original Medicare patients and 210 services for Billy A. De Los Santos. This counts Original Medicare only and measures volume, not quality.
- What is Billy A. De Los Santos's NPI number?
- 1386885614. 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 Billy A. De Los Santos, 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 | 55 |
|---|---|
| Services billed to Medicare | 210 |
| Different services or procedures | 16 |
| Participating Medicare provider | Yes |
| Average age of these patients | 76 |
Most frequent services
- Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more (99214)96 services
- Insertion of needle into vein for collection of blood sample (36415)48 services
- Administration of influenza virus vaccine (G0008)16 services
- Influenza vaccine, inactivated (90653)15 services
- Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more (99213)14 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 blood pressure75%
- High cholesterol75%
- Chronic kidney disease69%
- Arthritis47%
- Diabetes36%
- Osteoporosis29%
Practice locations
Addresses where Billy A. De Los Santos is enrolled with Medicare (CMS data updated October 2, 2026).
- 125 E Grubb Dr, 109 Wellmed at MesquiteMesquite, TX 75149 (972) 285‑6349
- 6157 NW Loop 410, 124 Wellmed at Ingram ParkSan Antonio, TX 78238 (210) 523‑1411
- 900 Airport Fwy, Suite 158Hurst, TX 76054 (817) 514‑4000
Group practices
Medicare enrollment lists Billy A. De Los Santos as a member of these groups (CMS data updated October 2, 2026).
- Wellmed Medical Group PA646 clinicians in the group
- Medical Clinic of North Texas, PLLC267 clinicians in the group
Specialties
- Internal Medicineprimary
Other internal medicine doctors in Mesquite
Clinicians with the same Medicare primary specialty in Mesquite, TX — not a recommendation.
Other clinicians in Wellmed Medical Group PA
Medicare enrollment lists these clinicians in the same group practice — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Graduation year | 2007 (19 years since medical school) |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| Telehealth | Offers telehealth services |
| NPI (National Provider Identifier) | 1386885614 |
| 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
- 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