Calvin Gao, MD
NPI 1134689912 · Pediatric Emergency Medicine (Pediatrics) Physician · Saint Louis, MO
Enrolled with Medicare as Practitioner - Emergency Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Calvin Gao, MD is a Pediatric Emergency Medicine (Pediatrics) Physician provider in Saint Louis, MO (NPI 1134689912).
Provider details
- NPI number
- 1134689912
- Entity type
- Individual
- Primary specialty
- Pediatric Emergency Medicine (Pediatrics) PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 2022013317 (MO)
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
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
- 2019-03-20
- Last updated
- 2025-07-31
- Certified
- 2025-07-31
Frequently asked questions
- What is Calvin Gao's NPI number?
- Calvin Gao's National Provider Identifier (NPI) is 1134689912, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Calvin Gao's specialty?
- Calvin Gao is listed in the NPPES registry with a primary specialty of Pediatric Emergency Medicine (Pediatrics) Physician (Allopathic & Osteopathic Physicians).
- Where is Calvin Gao located?
- Calvin Gao's practice location on file with NPPES is 615 S New Ballas Rd, Saint Louis, MO 63141-8221.
- What is Calvin Gao's phone number?
- The practice phone number listed in the NPPES registry for Calvin Gao is (314) 251-1604.
- Does Calvin Gao accept Medicare?
- Calvin Gao is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Calvin Gao's NPI active?
- Yes — Calvin Gao's NPI (1134689912) is active in the NPPES registry as of the last update on 2025-07-31.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.