LEONID KARL PEREZ (M.D.) – Anesthesiology Physician, NPI 1336155308
Anesthesiology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
6,369 ANESTHESIOLOGY in CA
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Provider Addresses for LEONID KARL PEREZ (M.D.)
225, South Lake Avenue, South Lake Ave, Pasadena, Los Angeles County, California, 91106, United States
535
PASADENA, CA 911013005
Phone: (626) 795-6596
Fax: (626) 795-8247
Type: Mailing
USC Verdugo Hills Hospital, 1812, Verdugo Boulevard, Glendale, Los Angeles County, California, 91208, United States
GLENDALE, CA 912081407
Phone: (818) 952-2214
Fax: (818) 952-4618
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 $22.
Total Amount is formed as General ($22) + Research ($0) + Ownership ($0) = $22.
Last reported payment date: 2023-02-09 • Largest payer in this snapshot: Avanos Medical ($22).
Total Amount
$22
General + Research + Ownership
Payments
1
Total payment records
General Amount
$22
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-02-09
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Avanos Medical | $22 |
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: 2004-04-22
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 |
|---|---|---|---|---|
| I20040422001355 | I | Anesthesiology | 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 |
|---|---|---|---|---|
| 76942 | Ultrasonic guidance for needle placement | 29 | 29 | $0 |
| 00910 | Anesthesia for other procedure on urinary system through urethra | 16 | 16 | $0 |
| 00902 | Anesthesia for procedure on anus and rectum | 15 | 14 | $0 |
| 01402 | Anesthesia for procedure for total knee joint replacement | 15 | 15 | $0 |
| 64448 | Continuous infusion of anesthetic agent and/or steroid into thigh nerve (femoral nerve) through catheter | 15 | 15 | $0 |
Insurance plans in this area (ZIP 91101)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| ANESTHESIOLOGY | CA | 01402 | Anesthesia for open or endoscopic total knee joint replacement | 13 | 12 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| A N E S T H E S I O L O G Y | CA | |
| A N E S T H E S I O L O G Y | IL | |
| A N E S T H E S I O L O G Y | CA | |
| A N E S T H E S I O L O G Y | CA | |
| A N E S T H E S I O L O G Y | CA | |
| A N E S T H E S I O L O G Y | CA | |
| A N E S T H E S I O L O G Y | CA | |
| A N E S T H E S I O L O G Y | CA | |
| A N E S T H E S I O L O G Y | CA |
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