SAMI ATASSI (MD) – Hematology & Oncology Physician, NPI 1801830534
Hematology & Oncology Physician
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Profile Insights
NPPES metrics only — not quality of care.
727 HEMATOLOGY/ONCOLOGY in IL
Provider Addresses for SAMI ATASSI (MD)
2600 S Michigan Ave Ste 308
Chicago, IL 606160049
Phone: (312) 326-6666
Type: Location
1400 Pin Oak Dr
Carterville, IL 629181600
Phone: (618) 985-3333
Fax: (618) 985-1318
Type: Location
621 Memorial Dr Ste 100
South Bend, IN 466011063
Phone: (574) 647-1100
Fax: (574) 647-5907
Type: Location
Sierra Drive, Greenwood, Johnson County, Indiana, 46142:46227, United States
STE 400
GREENWOOD, IN 461437241
Phone: (317) 865-8877
Fax: (317) 859-8850
Type: Mailing
1400, Pin Oak Drive, Carterville, Williamson County, Illinois, 62918, United States
CARTERVILLE, IL 629181600
Phone: (618) 985-3333
Fax: (618) 985-1318
Type: Location
PO BOX 781076 STE 400
DETROIT, MI 482780001
Phone: (317) 528-4800
Type: Mailing
8955 W 400 N
MICHIGAN CITY, IN 463609330
Phone: (219) 861-5800
Fax: (219) 861-5543
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 5 Open Payments records for all available years, with a total value of $111.
Total Amount is formed as General ($111) + Research ($0) + Ownership ($0) = $111.
Last reported payment date: 2024-03-27 • Largest payer in this snapshot: Novartis Pharmaceuticals Corporation ($39).
Total Amount
$111
General + Research + Ownership
Payments
5
Total payment records
General Amount
$111
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-03-27
Latest reported date
Top Companies
Largest payers in this snapshot
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: 2018-10-18
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 3 Medicare enrollment records; no due dates published yet.
Enrollment records
3
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 |
|---|---|---|---|---|
| I20041207000100 | I | Hematology/Oncology | IL | TBD |
| I20090825000503 | I | Hematology/Oncology | IN | TBD |
| I20181018000036 | I | Hematology/Oncology | WI | 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 |
|---|---|---|---|---|
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 265 | 133 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 37 | 18 | $0 |
| 99233 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 24 | 18 | $0 |
| 99203 | New patient office or other outpatient visit, 30-44 minutes | 23 | 23 | $0 |
| 99222 | Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 15 | 14 | $0 |
Insurance plans in this area (ZIP 60616)
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Group practice members
| Name | Specialty | State |
|---|---|---|
| - | IN | |
| - | IN | |
| - | IN | |
| - | MI | |
| - | IN | |
| - | IN | |
| Family Practice | IN | |
| - | MI | |
| Internal Medicine | IN | |
| Internal Medicine, Emergency Medicine | MI |
Reviews
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