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ANN O CONNOR MD
NPI 1154309284
Surgery - Pediatric Surgery in San Antonio, TX

Active since January 09, 2006PECOS Enrolled
333 N SANTA ROSA, SAN ANTONIO, TX 78207(713) 798-1750(713) 798-4693 Get Directions Write a Review

NPPES record last updated: February 1, 2025. Verified against the NPPES registry weekly; last sync: November 01, 2026.

Record update history: Jul 27, 2022, Jan 27, 2022 (2 updates tracked since 2022).

About Ann O Connor Md NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

ANN O CONNOR MD (NPI 1154309284) is an individual pediatric surgery provider in San Antonio, Texas, licensed in Texas (T4444) and active in the NPI registry since January 2006. She is enrolled in Medicare PECOS and maintains a secondary practice location in Winfield.

NPPES Registry Identity

NPI1154309284
Entity TypeIndividualFemale
Primary Taxonomy2086S0120X
Provider Legal NameANN O CONNORCredential: MD
Location Address333 N SANTA ROSASan Antonio, TX 78207-3108
Mailing Address333 N Santa RosaSan Antonio, TX 78207-3108 · (713) 798-1750 · Fax (713) 798-4693
Phone(713) 798-1750
Fax(713) 798-4693
Sole ProprietorNo
Enumeration DateJanuary 9, 2006
Last NPPES UpdateFebruary 1, 20252 updates tracked since enumeration
NPPES CertifiedFebruary 1, 2025
✔ NPI 1154309284 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgery · Pediatric SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code2086S0120X
Licenses✔ Licensed in TX · T4444✔ Licensed in IL · 036.129744
Definition
A surgeon with expertise in the management of surgical conditions in premature and newborn infants, children and adolescents.
333 N SANTA ROSA, San Antonio, TX 78207
Open in Google Maps ↗

Secondary Practice Location 1

Location 125 N. Winfield RoadWinfield, IL 60190 · Phone (630) 933-6631 ext. 2463 · Fax (630) 933-4936

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, CHRISTUS Health Plan, Oscar Insurance Company and more.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Ann O Connor Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignment

Medicare enrollment records show Ann O Connor reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Baylor College Of Medicine
Same address
Pediatrics
333 N SANTA ROSA
San Antonio, TX 78207
  • Reassigned Medicare billing, Texas enrollment
  • 453 clinicians in this Medicare group
NPI 1285079764 (210) 704-3030

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

LATHA PRASANNAN MD
Pediatrics (Pediatric Hematology-Oncology)
333 N SANTA ROSA
SAN ANTONIO, TX 78207
Bexar County (210) 704-3030
SOFIA SILVER COOK MD
Pediatrics (Pediatric Emergency Medicine)
333 N SANTA ROSA
SAN ANTONIO, TX 78207
Bexar County (210) 704-3030
NATALIE DIANE ETHRIDGE CPNP-AC
Nurse Practitioner (Pediatrics, Critical Care)
333 N SANTA ROSA
SAN ANTONIO, TX 78207
Bexar County (210) 704-3030
BONNIE MCILYAR DURLEY DO
Pediatrics
333 N SANTA ROSA
SAN ANTONIO, TX 78207
Bexar County (210) 704-3910
RAQUEL S PAZ
Student in an Organized Health Care Education/Training Program
333 N SANTA ROSA
SAN ANTONIO, TX 78207
Bexar County (760) 912-1125
DR. OLGA M CAJAS MD
Pediatrics
333 N SANTA ROSA
SAN ANTONIO, TX 78207
Bexar County (210) 704-4966
LEA PORCHE M.D.
Obstetrics & Gynecology (Maternal & Fetal Medicine)
333 N SANTA ROSA
SAN ANTONIO, TX 78207
Bexar County (713) 798-1750
SETH T SORENSEN PHD
Clinical Neuropsychologist
333 N SANTA ROSA
SAN ANTONIO, TX 78207
Bexar County (210) 704-3030

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Ann O Connor's NPI number?

The NPI number for Ann O Connor is 1154309284. It was assigned to this individual provider in the NPPES registry on January 9, 2006.

Where is Ann O Connor located?

Ann O Connor practices at 333 N Santa Rosa, San Antonio, TX 78207. The listed phone number is (713) 798-1750.

What is Ann O Connor's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Pediatric Surgery, with taxonomy code 2086S0120X.

Is Ann O Connor enrolled in Medicare?

Yes. Ann O Connor is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Ann O Connor's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Ann O Connor reassigns Medicare benefits to Baylor College Of Medicine (San Antonio, TX). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Ann O Connor's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Ann O Connor accept?

Health plans from Blue Cross and Blue Shield of Texas, CHRISTUS Health Plan, Oscar Insurance Company and WellPoint list Ann O Connor as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Ann O Connor was last updated on February 1, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 21 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.