CHANDANA JAVVAJI (M.D.) – Hematology & Oncology Physician, NPI 1821437716
Hematology & Oncology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
113 HEMATOLOGY/ONCOLOGY in IA
Provider Addresses for CHANDANA JAVVAJI (M.D.)
230 NEBRASKA ST
SIOUX CITY, IA 511011733
Phone: (712) 252-0088
Type: Mailing
55 Lake Ave N
Worcester, MA 016550002
Phone: (508) 334-1000
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 28 Open Payments records for all available years, with a total value of $513.
Total Amount is formed as General ($513) + Research ($0) + Ownership ($0) = $513.
Last reported payment date: 2024-12-31 • Largest payer in this snapshot: E.R. Squibb & Sons, L.L.C. ($197).
Total Amount
$513
General + Research + Ownership
Payments
28
Total payment records
General Amount
$513
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-31
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| E.R. Squibb & Sons, L.L.C. | $197 |
| PFIZER INC. | $73 |
| AstraZeneca Pharmaceuticals LP | $48 |
| Gilead Sciences, Inc. | $47 |
| SOBI, INC | $28 |
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: 2019-07-15
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 |
|---|---|---|---|---|
| I20190715003412 | I | Hematology/Oncology | IA | 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 |
|---|---|---|---|---|
| J9271 | Injection, pembrolizumab, 1 mg | 20,600 | 38 | $0 |
| J9299 | Injection, nivolumab, 1 mg | 14,000 | 17 | $0 |
| J1453 | Injection, fosaprepitant, 1 mg | 9,750 | 35 | $0 |
| J1756 | Injection, iron sucrose, 1 mg | 6,000 | 16 | $0 |
| J9263 | Injection, oxaliplatin, 0.5 mg | 5,600 | 11 | $0 |
Insurance plans in this area (ZIP 51101)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| Medical Oncology, Hematology/Oncology, Internal Medicine, Hematology/Oncology | NC | |
| Internal Medicine, Medical Oncology, Hematology/Oncology | PA | |
| - | OR | |
| Hematology/Oncology, Medical Oncology, Hematology | PA | |
| Hematology/Oncology, Medical Oncology | WA | |
| Hematology/Oncology, Internal Medicine, Medical Oncology | CA | |
| Radiation Oncology | CA | |
| Radiation Oncology | KS | |
| H E M A T O L O G Y/ O N C O L O G Y | IA | |
| H E M A T O L O G Y/ O N C O L O G Y | IA |
Reviews
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