DR. GUILLERMO LAZO-DIAZ (MD) – Medical Oncology Physician, NPI 1760421101
Medical Oncology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
770 MEDICAL ONCOLOGY in TX
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Provider Addresses for DR. GUILLERMO LAZO-DIAZ (MD)
Band Box Place, Dallas, Dallas County, Texas, 75244, United States
DALLAS, TX 753911230
Phone: (972) 997-8000
Fax: (972) 437-9605
Type: Mailing
1901, South 2nd Street, McAllen, Hidalgo County, Texas, 78503, United States
MCALLEN, TX 785031271
Phone: (956) 687-5150
Fax: (956) 687-9546
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 38 Open Payments records for all available years, with a total value of $1,796.
Total Amount is formed as General ($1,690) + Research ($105) + Ownership ($0) = $1,796.
Last reported payment date: 2024-12-19 • Largest payer in this snapshot: BeiGene USA, Inc. ($625).
Total Amount
$1,796
General + Research + Ownership
Payments
38
Total payment records
General Amount
$1,690
General payments
Research Amount
$105
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-19
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| BeiGene USA, Inc. | $625 |
| E.R. Squibb & Sons, L.L.C. | $146 |
| Kite Pharma, Inc. | $125 |
| Tempus AI, Inc | $114 |
| Eli Lilly and Company | $105 |
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: 2004-06-15
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 |
|---|---|---|---|---|
| I20040615000932 | I | Medical Oncology | 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 |
|---|---|---|---|---|
| Q0138 | Injection, ferumoxytol, for treatment of iron deficiency anemia, 1 mg (non-esrd use) | 10,200 | 16 | $0 |
| Q9967 | Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml | 1,940 | 23 | $0 |
| 36415 | Insertion of needle into vein for collection of blood sample | 888 | 213 | $0 |
| 85025 | Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | 843 | 214 | $0 |
| 80053 | Blood test, comprehensive group of blood chemicals | 808 | 211 | $0 |
Insurance plans in this area (ZIP 75391)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| Surgical Oncology | TX | |
| Medical Oncology, Internal Medicine | TX | |
| Certified Clinical Nurse Specialist (Cns) | TX | |
| Medical Oncology, Internal Medicine | TX | |
| Medical Oncology, Internal Medicine | TX | |
| Hematology/Oncology, Internal Medicine, Medical Oncology | TX | |
| Radiation Oncology | TX | |
| Nurse Practitioner | TX | |
| - | TX | |
| - | TX |
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