William Orr, MD
NPI 1699115006 · Pediatric Cardiology Physician · Saint Louis, MO
Enrolled with Medicare as Practitioner - Pediatric Medicine · source: CMS PECOS Public Provider Enrollment (2026.04.01)
William Orr, MD is a Pediatric Cardiology Physician provider in Saint Louis, MO (NPI 1699115006).
Provider details
- NPI number
- 1699115006
- Entity type
- Individual
- Primary specialty
- Pediatric Cardiology PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Male
- Sole proprietor
- No
- License
- 2016009346 (MO)
Specialties & taxonomies
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
13 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
- 2013-06-28
- Last updated
- 2026-02-09
Frequently asked questions
- What is William Orr's NPI number?
- William Orr's National Provider Identifier (NPI) is 1699115006, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is William Orr's specialty?
- William Orr is listed in the NPPES registry with a primary specialty of Pediatric Cardiology Physician (Allopathic & Osteopathic Physicians).
- Where is William Orr located?
- William Orr's practice location on file with NPPES is 1 Childrens Pl, Saint Louis, MO 63110-1002.
- What is William Orr's phone number?
- The practice phone number listed in the NPPES registry for William Orr is (314) 454-6095.
- Does William Orr accept Medicare?
- William Orr is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is William Orr's NPI active?
- Yes — William Orr's NPI (1699115006) is active in the NPPES registry as of the last update on 2026-02-09.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.