DR. SHAHRYAR A. ASHOURI (M.D.) – Hematology & Oncology Physician, NPI 1609946169
Hematology & Oncology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
1,531 HEMATOLOGY/ONCOLOGY in CA
Provider Addresses for DR. SHAHRYAR A. ASHOURI (M.D.)
1250 LA VENTA DR STE 202
WESTLAKE VILLAGE, CA 913613769
Phone: (805) 496-5153
Fax: (805) 496-5202
Type: Location
5767 W CENTURY BLVD STE 400
LOS ANGELES, CA 900455631
Phone:
Type: Mailing
1250 LA VENTA DR STE 211
WESTLAKE VILLAGE, CA 913613764
Phone: (805) 496-5153
Fax: (805) 496-5202
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 2 Open Payments records for all available years, with a total value of $54.
Total Amount is formed as General ($54) + Research ($0) + Ownership ($0) = $54.
Last reported payment date: 2024-11-19 • Largest payer in this snapshot: Intuitive Surgical, Inc. ($38).
Total Amount
$54
General + Research + Ownership
Payments
2
Total payment records
General Amount
$54
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-19
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Intuitive Surgical, Inc. | $38 |
| Takeda Pharmaceuticals U.S.A., Inc. | $16 |
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: 2008-12-16
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 |
|---|---|---|---|---|
| I20081216000386 | 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 |
|---|---|---|---|---|
| J0881 | Injection, darbepoetin alfa, 1 microgram (non-esrd use) | 41,000 | 29 | $0 |
| Q0138 | Injection, ferumoxytol, for treatment of iron deficiency anemia, 1 mg (non-esrd use) | 40,800 | 29 | $0 |
| J9271 | Injection, pembrolizumab, 1 mg | 24,000 | 23 | $0 |
| J1453 | Injection, fosaprepitant, 1 mg | 10,650 | 31 | $0 |
| J0897 | Injection, denosumab, 1 mg | 9,720 | 40 | $0 |
Insurance plans in this area (ZIP 91361)
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Provider's Procedures
Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine, Hospitalist | CA | |
| Family Practice | CA | |
| - | CA | |
| - | CA | |
| - | CA | |
| Emergency Medicine, Family Practice | CA | |
| Medical Oncology, Hematology/Oncology | CA | |
| Hospitalist, Internal Medicine | MA | |
| A L L E R G Y/ I M M U N O L O G Y | CA | |
| Hospitalist, Internal Medicine | CA |
Reviews
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