Ann O Connor, MD
NPI 1154309284 · Pediatric Surgery Physician · San Antonio, TX
Enrolled with Medicare as Practitioner - General Surgery · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Ann O Connor, MD is a Pediatric Surgery Physician provider in San Antonio, TX (NPI 1154309284).
Provider details
- NPI number
- 1154309284
- Entity type
- Individual
- Primary specialty
- Pediatric Surgery PhysicianAllopathic & Osteopathic Physicians
- Credential
- MD
- Sex
- Female
- Sole proprietor
- No
- License
- 036.129744 (IL)
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 tenure33% of score
20 yrs in NPPES registry
- Profile completeness33% of score
100% of core fields populated
- Practice footprint20% of score
2 documented practice locations
- Open Payments transparency13% of score
Has Open Payments disclosures (2024)
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.
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$4,380 across 13 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 25 N. Winfield RoadWinfield, IL 60190Phone: (630) 933-6631Fax: (630) 933-4936
Registry dates
- Enumerated
- 2006-01-09
- Last updated
- 2025-02-01
- Certified
- 2025-02-01
Frequently asked questions
- What is Ann O Connor's NPI number?
- Ann O Connor's National Provider Identifier (NPI) is 1154309284, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Ann O Connor's specialty?
- Ann O Connor is listed in the NPPES registry with a primary specialty of Pediatric Surgery Physician (Allopathic & Osteopathic Physicians).
- Where is Ann O Connor located?
- Ann O Connor's practice location on file with NPPES is 333 N Santa Rosa, San Antonio, TX 78207-3108.
- What is Ann O Connor's phone number?
- The practice phone number listed in the NPPES registry for Ann O Connor is (713) 798-1750.
- Does Ann O Connor accept Medicare?
- Ann O Connor is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Ann O Connor's NPI active?
- Yes — Ann O Connor's NPI (1154309284) is active in the NPPES registry as of the last update on 2025-02-01.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.