Sami Atassi MD Ltd
NPI 1821113234 · Hematology & Oncology Physician · Chicago, IL
Sami Atassi MD Ltd is a Hematology & Oncology Physician organization in Chicago, IL (NPI 1821113234).
Provider details
- NPI number
- 1821113234
- Entity type
- Organization
- Primary specialty
- Hematology & Oncology PhysicianAllopathic & Osteopathic Physicians
- Organization subpart
- No
- Authorized official
- Sami Attassi, President(312) 326-6666
- License
- 328868954 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-03-21
- Last updated
- 2009-10-20
Frequently asked questions
- What is Sami Atassi MD Ltd's NPI number?
- Sami Atassi MD Ltd's National Provider Identifier (NPI) is 1821113234, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What type of organization is Sami Atassi MD Ltd?
- Sami Atassi MD Ltd is classified in the NPPES registry as Hematology & Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Sami Atassi MD Ltd located?
- Sami Atassi MD Ltd's practice location on file with NPPES is 2600 S Michigan Ave Ste 308, Chicago, IL 60616-2857.
- What is Sami Atassi MD Ltd's phone number?
- The practice phone number listed in the NPPES registry for Sami Atassi MD Ltd is (312) 326-6666.
- Who is the authorized official for Sami Atassi MD Ltd?
- The authorized official listed on Sami Atassi MD Ltd's NPPES record is Sami Attassi, President. The authorized official registers and maintains the organization's NPI and is not necessarily its owner.
- Is Sami Atassi MD Ltd's NPI active?
- Yes — Sami Atassi MD Ltd's NPI (1821113234) is active in the NPPES registry as of the last update on 2009-10-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.