Sami Atassi, MD
Hematology/Oncology · Internal Medicine (CMS) · Michigan City, IN
At a glance
8955 W 400 N, Michigan City, IN 46360-9330
NPPES record updated Jul 9, 2024. Public records can lag behind changes at a practice.
Before you call: a quick checklist
- Are you accepting new patients?
- Do you accept my specific insurance plan?
- Do you provide the service I need at this address?
- Do I need a referral, and what is the earliest appointment?
Insurance participation and appointment availability are not established by these public records.
Medicare & insurance
Insurance participation is not established by these public records. Ask the practice and your insurer about your specific plan and this location.
How to check your coverage
Use your plan’s provider directory or the member-services number on your insurance card. Confirm the clinician, practice address, service, and whether a referral is required. A missing opt-out record does not establish Medicare acceptance.
Check the official Medicare directory ↗Practice location
8955 W 400 NMichigan City, IN 46360-9330
Additional reported practice locations
2600 S Michigan Ave Ste 308Chicago, IL 606160049
Phone: 3123266666 1400 Pin Oak Dr
Carterville, IL 629181600
Phone: 6189853333
Fax: 6189851318 621 Memorial Dr Ste 100
South Bend, IN 466011063
Phone: 5746471100
Fax: 5746475907
Education & affiliations
- Medical / professional school
- Not reported in this file
- Graduation year
- 1985
- CMS specialties
- Hematology/Oncology · Internal Medicine
Practice groups
Reported hospital affiliations
- Franciscan Health Lafayette Lafayette, IN
- Franciscan Health Michigan City Michigan City, IN
- Indiana University Health Arnett Hospital Lafayette, IN
Graduation year does not establish years in practice. A reported affiliation does not establish employment, current admitting privileges, or insurance participation.
Source: CMS National Downloadable File · Published Oct 15, 2026.
Source: CMS Facility Affiliation Data · Published Oct 15, 2026.
Procedures in the public data
Reported activity can help you ask more informed questions about a practice’s services.
No displayed procedure-category record in this release. This does not mean the clinician performs no procedures.
CMS uses a one-year claims window with a reporting lag. Counts cover the Medicare activity included by CMS, not all patients. “1–10” is a published range. Volume is not a quality or outcomes score. Coverage and methodology
Source: CMS Utilization Data · Published Oct 15, 2026.
Find providers with a similar service mix
Compare 2024 published Medicare activity in the same reported specialty, here or in another city.
Industry-reported general payments
Includes reported transfers of value, such as meals, travel, or consulting. Payments do not establish improper conduct or quality of care. Research funding and ownership values are excluded from this total.
See payment purposes and reporting companies
Reported purposes
| Purpose | Amount |
|---|---|
| Food and beverage | $30.70 |
Reporting companies
| Company | Amount |
|---|---|
| JAZZ PHARMACEUTICALS INC. | $30.70 |
Source: CMS 2025 payments grouped by covered recipient and nature of payments · Published Jun 30, 2026.
Professional details: NPI, taxonomy & registry record
Registry details
- Primary taxonomy
- Hematology/Oncology · Internal Medicine (CMS)
- Taxonomy code
- 207RH0003X
- Enumeration date
- Jun 15, 2006
- Record updated
- Jul 9, 2024
More registry details
- Provider type
- Individual · Type 1
- Reported credentials
- MD
Reported taxonomies and licenses
207RH0000X
License reported: 47734 IA
207RH0003X
License reported: 036.091724 IL
207RH0003X · Primary
License reported: 01060203A IN
License numbers and credentials are reported to NPPES; HCPList does not independently verify them.
Practice location
8955 W 400 NMichigan City, IN 46360-9330
- Phone
- (219) 861-5800
- Fax
- (219) 861-5543
Mailing address
PO BOX 781076 STE 400DETROIT, MI 482780001
Information may be outdated or incomplete. Confirm details directly with the practice. HCPList is an independent directory and is not affiliated with CMS.
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