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Sigmund Weitzman, MD
NPI 1144249764 · Medical Oncology Physician · Chicago, IL
Sigmund Weitzman, MD is a Medical Oncology Physician provider in Chicago, IL (NPI 1144249764).
Provider details
- NPI number
- 1144249764
- Entity type
- Individual
- Primary specialty
- Medical Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 036072766 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
Detailed profile(91/100 index)
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
676 N Saint Clair St
Suite 850
Chicago, IL 60611-2927
Phone: (312) 695-0990
Fax: (312) 908-5717
Street-level locationGet directions
Mailing address
680 N Lake Shore Dr
Chicago, IL 60611-4546
Registry dates
- Enumerated
- 2006-07-18
- Last updated
- 2009-07-17
Frequently asked questions
- What is Sigmund Weitzman's NPI number?
- Sigmund Weitzman's National Provider Identifier (NPI) is 1144249764, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Sigmund Weitzman's specialty?
- Sigmund Weitzman is listed in the NPPES registry with a primary specialty of Medical Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Sigmund Weitzman located?
- Sigmund Weitzman's practice location on file with NPPES is 676 N Saint Clair St, Chicago, IL 60611-2927.
- What is Sigmund Weitzman's phone number?
- The practice phone number listed in the NPPES registry for Sigmund Weitzman is (312) 695-0990.
- Is Sigmund Weitzman's NPI active?
- Yes — Sigmund Weitzman's NPI (1144249764) is active in the NPPES registry as of the last update on 2009-07-17.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.