GEORGE HAJJAR (MD) – Hematology & Oncology Physician, NPI 1619978715
Hematology & Oncology Physician
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Doctor Profile
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Profile Insights
NPPES metrics only — not quality of care.
1,531 HEMATOLOGY/ONCOLOGY in CA
Provider Addresses for GEORGE HAJJAR (MD)
15031 Rinaldi St Ste 150
Mission Hills, CA 913451207
Phone: (818) 660-4700
Type: Location
465 W Putnam Ave
Porterville, CA 932573320
Phone: (559) 784-1110
Type: Location
Box, Lago del Salado, Los Angeles, San Nicolás de los Garza, Nuevo León, 66477, Mexico
LOS ANGELES, CA 900510185
Phone: (626) 775-3514
Fax: (626) 218-5310
Type: Mailing
Valencia Boulevard, Valencia, Santa Clarita, Los Angeles County, California, 91355, United States
SANTA CLARITA, CA 913559512
Phone: (661) 799-1999
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 13 Open Payments records for all available years, with a total value of $3,436.
Total Amount is formed as General ($3,436) + Research ($0) + Ownership ($0) = $3,436.
Last reported payment date: 2024-12-12 • Largest payer in this snapshot: AstraZeneca Pharmaceuticals LP ($3,173).
Total Amount
$3,436
General + Research + Ownership
Payments
13
Total payment records
General Amount
$3,436
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-12
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| AstraZeneca Pharmaceuticals LP | $3,173 |
| SOBI, INC | $200 |
| Seagen Inc. | $34 |
| PFIZER INC. | $29 |
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: 2007-03-19
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 |
|---|---|---|---|---|
| I20070319000233 | I | Hematology/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 |
|---|---|---|---|---|
| J9299 | Injection, nivolumab, 1 mg | 20,760 | 14 | $0 |
| J9271 | Injection, pembrolizumab, 1 mg | 4,800 | 15 | $0 |
| J0185 | Injection, aprepitant, 1 mg | 3,380 | 18 | $0 |
| J0897 | Injection, denosumab, 1 mg | 3,000 | 17 | $0 |
| J1569 | Injection, immune globulin, (gammagard liquid), non-lyophilized, (e.g., liquid), 500 mg | 2,060 | 11 | $0 |
Insurance plans in this area (ZIP 91345)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| E N D O C R I N O L O G Y | CA | |
| P A T H O L O G Y | CA | |
| Diagnostic Radiology | CA | |
| Radiation Oncology | OH | |
| Nurse Practitioner | CA | |
| Nurse Practitioner | CA | |
| Physician Assistant | NY | |
| - | CA | |
| Infectious Disease | CA | |
| Hematology/Oncology, Pediatric Medicine | CA |
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