Robert Stein, MD
NPI 1245230309 · Hematology (Internal Medicine) Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Hematology/Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Stein, MD is a Hematology (Internal Medicine) Physician provider in Chicago, IL (NPI 1245230309).
Provider details
- NPI number
- 1245230309
- Entity type
- Individual
- Primary specialty
- Hematology (Internal Medicine) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 036054692 (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
21 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
- 2005-07-29
- Last updated
- 2015-07-10
Frequently asked questions
- What is Robert Stein's NPI number?
- Robert Stein's National Provider Identifier (NPI) is 1245230309, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Stein's specialty?
- Robert Stein is listed in the NPPES registry with a primary specialty of Hematology (Internal Medicine) Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Stein located?
- Robert Stein's practice location on file with NPPES is 62647 Collection Center Dr, Chicago, IL 60693-0626.
- What is Robert Stein's phone number?
- The practice phone number listed in the NPPES registry for Robert Stein is (708) 424-9710.
- Does Robert Stein accept Medicare?
- Robert Stein is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Stein's NPI active?
- Yes — Robert Stein's NPI (1245230309) is active in the NPPES registry as of the last update on 2015-07-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.