Rui Guan
NPI 1588963771 · Internal Medicine Physician · Park Ridge, IL
Enrolled with Medicare as Order and Referring Only - Neurology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Rui Guan is a Internal Medicine Physician provider in Park Ridge, IL (NPI 1588963771).
Provider details
- NPI number
- 1588963771
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Student, Health Care
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
15 yrs in NPPES registry
- Profile completeness38% of score
83% 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
- 2011-03-28
- Last updated
- 2012-06-20
Frequently asked questions
- What is Rui Guan's NPI number?
- Rui Guan's National Provider Identifier (NPI) is 1588963771, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rui Guan's specialty?
- Rui Guan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Rui Guan located?
- Rui Guan's practice location on file with NPPES is 1775 Dempster St, Park Ridge, IL 60068-1143.
- What is Rui Guan's phone number?
- The practice phone number listed in the NPPES registry for Rui Guan is (847) 723-2210.
- Does Rui Guan accept Medicare?
- Rui Guan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Rui Guan's NPI active?
- Yes — Rui Guan's NPI (1588963771) is active in the NPPES registry as of the last update on 2012-06-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.