Rowland Chang, MD
NPI 1740243807 · Rheumatology Physician · Chicago, IL
Enrolled with Medicare as Practitioner - Rheumatology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Rowland Chang, MD is a Rheumatology Physician provider in Chicago, IL (NPI 1740243807).
Provider details
- NPI number
- 1740243807
- Entity type
- Individual
- Primary specialty
- Rheumatology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 036064404 (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
20 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
- 2006-04-10
- Last updated
- 2022-04-22
- Certified
- 2022-04-22
Frequently asked questions
- What is Rowland Chang's NPI number?
- Rowland Chang's National Provider Identifier (NPI) is 1740243807, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Rowland Chang's specialty?
- Rowland Chang is listed in the NPPES registry with a primary specialty of Rheumatology Physician (Allopathic & Osteopathic Physicians).
- Where is Rowland Chang located?
- Rowland Chang's practice location on file with NPPES is 355 E Erie St, Chicago, IL 60611-3167.
- What is Rowland Chang's phone number?
- The practice phone number listed in the NPPES registry for Rowland Chang is (312) 238-1000.
- Does Rowland Chang accept Medicare?
- Rowland Chang is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Rowland Chang's NPI active?
- Yes — Rowland Chang's NPI (1740243807) is active in the NPPES registry as of the last update on 2022-04-22.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.