Osama Siddiqui
NPI 1225512270 · Internal Medicine Physician · Evanston, IL
Enrolled with Medicare as Order and Referring Only - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Osama Siddiqui is a Internal Medicine Physician provider in Evanston, IL (NPI 1225512270).
Provider details
- NPI number
- 1225512270
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- No
- License
- 036178982 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
7 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
- 2018-09-15
- Last updated
- 2026-03-16
- Certified
- 2026-03-16
Frequently asked questions
- What is Osama Siddiqui's NPI number?
- Osama Siddiqui's National Provider Identifier (NPI) is 1225512270, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Osama Siddiqui's specialty?
- Osama Siddiqui is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Osama Siddiqui located?
- Osama Siddiqui's practice location on file with NPPES is 2650 Ridge Ave Ste 130, Evanston, IL 60201-1700.
- What is Osama Siddiqui's phone number?
- The practice phone number listed in the NPPES registry for Osama Siddiqui is (847) 570-2700.
- Does Osama Siddiqui accept Medicare?
- Osama Siddiqui is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Osama Siddiqui's NPI active?
- Yes — Osama Siddiqui's NPI (1225512270) is active in the NPPES registry as of the last update on 2026-03-16.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.