Oliver Ralph
NPI 1740817923 · Surgery Physician · Chicago, IL
Enrolled with Medicare as Order and Referring Only - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Oliver Ralph is a Surgery Physician provider in Chicago, IL (NPI 1740817923).
Provider details
- NPI number
- 1740817923
- Entity type
- Individual
- Primary specialty
- Surgery PhysicianAllopathic & Osteopathic Physicians
- Sex
- Male
- Sole proprietor
- Yes
- License
- 125075975 (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
6 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
- 2020-03-26
- Last updated
- 2020-07-10
- Certified
- 2020-07-10
Frequently asked questions
- What is Oliver Ralph's NPI number?
- Oliver Ralph's National Provider Identifier (NPI) is 1740817923, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Oliver Ralph's specialty?
- Oliver Ralph is listed in the NPPES registry with a primary specialty of Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Oliver Ralph located?
- Oliver Ralph's practice location on file with NPPES is Rush University Medical Center, Chicago, IL 60612.
- What is Oliver Ralph's phone number?
- The practice phone number listed in the NPPES registry for Oliver Ralph is (312) 942-5474.
- Does Oliver Ralph accept Medicare?
- Oliver Ralph is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Oliver Ralph's NPI active?
- Yes — Oliver Ralph's NPI (1740817923) is active in the NPPES registry as of the last update on 2020-07-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.