GREGG D ALZATE (MD) – Diagnostic Radiology Physician, NPI 1932173085
Diagnostic Radiology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
4,812 DIAGNOSTIC RADIOLOGY in CA
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Provider Addresses for GREGG D ALZATE (MD)
PO BOX 23540
SAN DIEGO, CA 921933540
Phone: (858) 565-0950
Fax: (858) 244-1100
Type: Mailing
8745, Aero Drive, Serra Mesa, San Diego, San Diego County, California, 92123, United States
STE 200
SAN DIEGO, CA 921231774
Phone: (858) 565-0950
Fax: (858) 244-1100
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 71 Open Payments records for all available years, with a total value of $54,660.
Total Amount is formed as General ($54,660) + Research ($0) + Ownership ($0) = $54,660.
Last reported payment date: 2024-12-31 • Largest payer in this snapshot: AngioDynamics, Inc. ($52,024).
Total Amount
$54,660
General + Research + Ownership
Payments
71
Total payment records
General Amount
$54,660
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-31
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| AngioDynamics, Inc. | $52,024 |
| Penumbra, Inc. | $583 |
| Cook Medical LLC | $276 |
| Stryker Corporation | $222 |
| Silk Road Medical, Inc. | $219 |
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: 2007-06-19
PECOS data refreshed: 2026-06-15
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 |
|---|---|---|---|---|
| I20070619000718 | I | Diagnostic Radiology | CA | 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 |
|---|---|---|---|---|
| Q9967 | Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml | 2,540 | 28 | $0 |
| 70450 | Ct scan head or brain without contrast | 339 | 329 | $0 |
| 71045 | X-ray of chest, 1 view | 298 | 285 | $0 |
| 71046 | X-ray of chest, 2 views | 129 | 128 | $0 |
| 74177 | Ct scan of abdomen and pelvis with contrast | 92 | 92 | $0 |
Insurance plans in this area (ZIP 92193)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | CA | |
| - | CA | |
| - | CA | |
| Diagnostic Radiology, Interventional Cardiology | CA | |
| Diagnostic Radiology | CA | |
| Diagnostic Radiology, Interventional Radiology | CA | |
| Diagnostic Radiology | CA | |
| Diagnostic Radiology | CA | |
| Diagnostic Radiology | CA | |
| Interventional Radiology, Diagnostic Radiology | CA |
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