BILLY A DE LOS SANTOS (MD) – Internal Medicine Physician, NPI 1386885614
Internal Medicine Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
13,297 INTERNAL MEDICINE in TX
Provider Addresses for BILLY A DE LOS SANTOS (MD)
341 WHEATFIELD DR STE 100
SUNNYVALE, TX 751824639
Phone: (972) 285-0221
Fax: (972) 285-0223
Type: Mailing
820, East Cartwright Road, Mesquite, Dallas County, Texas, 75149, United States
SUITE 100
MESQUITE, TX 751496000
Phone: (214) 320-7600
Type: Location
820, West Cartwright Road, Mesquite, Dallas County, Texas, 75149, United States
SUITE 100
MESQUITE, TX 75149
Phone: (214) 320-7600
Fax: (214) 320-7690
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
Open Payments (CMS)
CMS reports 8 Open Payments records for all available years, with a total value of $427.
Total Amount is formed as General ($427) + Research ($0) + Ownership ($0) = $427.
Last reported payment date: 2024-11-08 • Largest payer in this snapshot: Bayer Healthcare Pharmaceuticals Inc. ($174).
Total Amount
$427
General + Research + Ownership
Payments
8
Total payment records
General Amount
$427
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-08
Latest reported date
Top Companies
Largest payers in this snapshot
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2011-12-02
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20111202000436 | I | Internal Medicine | TX | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 85 | 52 | $0 |
| 36415 | Insertion of needle into vein for collection of blood sample | 49 | 25 | $0 |
| G0008 | Administration of influenza virus vaccine | 19 | 19 | $0 |
| 90694 | Influenza vaccine, quadrivalent inactivated, 0.5 ml dosage | 18 | 18 | $0 |
Insurance plans in this area (ZIP 75182)
Loading plans...
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | GA | |
| Internal Medicine | WV | |
| - | TX | |
| Nurse Practitioner | TX | |
| - | TX | |
| - | TX | |
| Nurse Practitioner | TX | |
| Family Practice | TX | |
| General Surgery | NJ | |
| Nurse Practitioner | TX |
Reviews
All reviews are moderated before publication. Reviews reflect users' opinions; we do not verify the accuracy of individual reviews.
No reviews yet. Be the first to share your experience — your opinion helps families compare providers.