LESLIE BALLAS (MD) – Radiation Oncology Physician, NPI 1235388901
Radiation Oncology Physician
Main info
Doctor Profile
Contacts
Profile Insights
NPPES metrics only — not quality of care.
679 RADIATION ONCOLOGY in CA
Provider Addresses for LESLIE BALLAS (MD)
PO BOX 31309
LOS ANGELES, CA 900310309
Phone: (323) 865-3050
Fax: (323) 865-3000
Type: Mailing
8700 Beverly Blvd # Ac1010
West Hollywood, CA 900481804
Phone: (310) 423-4208
Fax: (310) 659-3332
Type: Location
4140 W 190TH ST
TORRANCE, CA 905045513
Phone:
Type: Mailing
Norris Cancer Center and Hospital, 1441, Eastlake Avenue, Boyle Heights, Los Angeles, Los Angeles County, California, 90033, United States
NOR G-350
LOS ANGELES, CA 900890112
Phone: (323) 865-3050
Fax: (323) 865-3000
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
Loading prescription activity...
Open Payments (CMS)
CMS reports 1 Open Payments records for all available years, with a total value of $1,700.
Total Amount is formed as General ($1,700) + Research ($0) + Ownership ($0) = $1,700.
Last reported payment date: 2023-03-01 • Largest payer in this snapshot: Blue Earth Diagnostics Limited ($1,700).
Total Amount
$1,700
General + Research + Ownership
Payments
1
Total payment records
General Amount
$1,700
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2023-03-01
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Blue Earth Diagnostics Limited | $1,700 |
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: 2011-09-14
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 |
|---|---|---|---|---|
| I20110914000090 | I | Radiation Oncology | 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 |
|---|---|---|---|---|
| 77014 | Ct guidance for insertion of radiation therapy fields | 841 | 56 | $0 |
| 77300 | Calculation of radiation therapy dose | 206 | 67 | $0 |
| 77427 | Radiation treatment management, 5 treatment sessions | 170 | 56 | $0 |
| 77334 | Design and construction of complex radiation treatment device | 107 | 67 | $0 |
| 77290 | Obtaining data needed to develop the optimal radiation treatment, 3 or more treatment areas or any number of treatment areas where special treatment is involved | 70 | 67 | $0 |
Insurance plans in this area (ZIP 90031)
Loading plans...
Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| RADIATION ONCOLOGY | CA | 77427 | Radiation treatment management, 5 treatments | 283 | 79 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Critical Care (Intensivists), General Surgery | CA | |
| - | WA | |
| Nurse Practitioner | CA | |
| Physician Assistant | CA | |
| Clinical Psychologist | CA | |
| Nurse Practitioner | CA | |
| Nurse Practitioner | CA | |
| General Surgery, Critical Care (Intensivists) | CA | |
| Internal Medicine | CA | |
| Plastic And Reconstructive Surgery | CA |
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.