ATA MAZAHERI (MD) – Surgery Physician, NPI 1164467239
Surgery Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
3,317 GENERAL SURGERY in CA
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Provider Addresses for ATA MAZAHERI (MD)
Watts Medical Plaza, 20911, Earl Street, Torrance, Los Angeles County, California, 90503, United States
STE 245
TORRANCE, CA 905034355
Phone: (818) 247-7600
Fax: (818) 247-7126
Type: Mailing
Professional Building, 1560, East Chevy Chase Drive, Glendale, Los Angeles County, California, 91206, United States
SUITE 450
GLENDALE, CA 912064197
Phone: (818) 246-3300
Fax: (818) 247-7600
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $138.
Total Amount is formed as General ($138) + Research ($0) + Ownership ($0) = $138.
Last reported payment date: 2024-11-06 • Largest payer in this snapshot: Kerecis Limited ($138).
Total Amount
$138
General + Research + Ownership
Payments
1
Total payment records
General Amount
$138
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-06
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Kerecis Limited | $138 |
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: 2005-08-29
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 |
|---|---|---|---|---|
| I20050829000462 | I | General Surgery | 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 |
|---|---|---|---|---|
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 454 | 72 | $0 |
| 99291 | Critical care, first 30-74 minutes | 88 | 12 | $0 |
| 99223 | Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 70 | 68 | $0 |
| 99285 | Emergency department visit with high level of medical decision making | 30 | 30 | $0 |
| 47562 | Removal of gallbladder using an endoscope | 16 | 16 | $0 |
Insurance plans in this area (ZIP 90503)
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