Diane Ryan, M,D.
NPI 1932473824 · Internal Medicine Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Internal Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Diane Ryan, M,D. is a Internal Medicine Physician provider in Chicago, IL (NPI 1932473824).
Provider details
- NPI number
- 1932473824
- Entity type
- Individual
- Primary specialty
- Internal Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M,D.
- Sex
- Female
- Sole proprietor
- No
- License
- 036-099386 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
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
14 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 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 (2)
- 20201 Crawford AveOlympia Fields, IL 60461-1010Phone: (708) 747-4000
- 11109 Parkview Plaza DrFort Wayne, IN 46845-1701Phone: (260) 672-6620Fax: (260) 672-6639
Registry dates
- Enumerated
- 2012-02-24
- Last updated
- 2022-10-27
- Certified
- 2022-10-27
Frequently asked questions
- What is Diane Ryan's NPI number?
- Diane Ryan's National Provider Identifier (NPI) is 1932473824, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Diane Ryan's specialty?
- Diane Ryan is listed in the NPPES registry with a primary specialty of Internal Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Diane Ryan located?
- Diane Ryan's practice location on file with NPPES is 1700 W Van Buren St, Chicago, IL 60612-5500.
- What is Diane Ryan's phone number?
- The practice phone number listed in the NPPES registry for Diane Ryan is (312) 563-2875.
- Does Diane Ryan accept Medicare?
- Diane Ryan is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Diane Ryan's NPI active?
- Yes — Diane Ryan's NPI (1932473824) is active in the NPPES registry as of the last update on 2022-10-27.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.