Calvin Chiu, MD
NPI 1972503423 · Obstetrics & Gynecology Physician · Mount Vernon, IL
Calvin Chiu, MD is a Obstetrics & Gynecology Physician provider in Mount Vernon, IL (NPI 1972503423).
Provider details
- NPI number
- 1972503423
- Entity type
- Individual
- Primary specialty
- Obstetrics & Gynecology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
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
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
- 2005-07-27
- Last updated
- 2007-07-08
Frequently asked questions
- What is Calvin Chiu's NPI number?
- Calvin Chiu's National Provider Identifier (NPI) is 1972503423, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Calvin Chiu's specialty?
- Calvin Chiu is listed in the NPPES registry with a primary specialty of Obstetrics & Gynecology Physician (Allopathic & Osteopathic Physicians).
- Where is Calvin Chiu located?
- Calvin Chiu's practice location on file with NPPES is 2413 Broadway St, Mount Vernon, IL 62864-2917.
- What is Calvin Chiu's phone number?
- The practice phone number listed in the NPPES registry for Calvin Chiu is (618) 244-6170.
- Is Calvin Chiu's NPI active?
- Yes — Calvin Chiu's NPI (1972503423) is active in the NPPES registry as of the last update on 2007-07-08.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.