Joshua Ruff, MD
NPI 1659839827 · Emergency Medicine Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Joshua Ruff, MD is a Emergency Medicine Physician provider in Chicago, IL (NPI 1659839827).
Provider details
- NPI number
- 1659839827
- Entity type
- Individual
- Primary specialty
- Emergency Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- Yes
- License
- 036158617 (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
7 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
2 documented practice locations
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
Additional practice locations (1)
- 1 Kish Hospital DrDekalb, IL 60115-9602Phone: (815) 766-7334Fax: (815) 766-9768
Registry dates
- Enumerated
- 2019-03-06
- Last updated
- 2024-11-14
- Certified
- 2024-11-14
Frequently asked questions
- What is Joshua Ruff's NPI number?
- Joshua Ruff's National Provider Identifier (NPI) is 1659839827, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Joshua Ruff's specialty?
- Joshua Ruff is listed in the NPPES registry with a primary specialty of Emergency Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Joshua Ruff located?
- Joshua Ruff's practice location on file with NPPES is 600 S Paulina St Ste 403, Chicago, IL 60612-3806.
- What is Joshua Ruff's phone number?
- The practice phone number listed in the NPPES registry for Joshua Ruff is (312) 942-7100.
- Does Joshua Ruff accept Medicare?
- Joshua Ruff is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Joshua Ruff's NPI active?
- Yes — Joshua Ruff's NPI (1659839827) is active in the NPPES registry as of the last update on 2024-11-14.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.