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CHLOE AFFTON TARBOX AA
NPI 1255131777
Anesthesiologist Assistant in Round Rock, TX

Active since March 14, 2025Accepts Medicare Assignment
300 UNIVERSITY BLVD, ROUND ROCK, TX 78665(817) 888-4802 Get Directions Write a Review

NPPES record last updated: September 8, 2025. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Sep 8, 2025, Jun 13, 2025, Mar 14, 2025 (3 updates tracked since 2025).

About Chloe Affton Tarbox Aa NPPES

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

CHLOE AFFTON TARBOX AA (NPI 1255131777) is an individual anesthesiologist assistant in Round Rock, Texas, licensed in Texas (789790576) and active in the NPI registry since March 2025. She is affiliated with Baylor Scott & White Medical Center - Round Rock and is a graduate of Other (2025).

NPPES Registry Identity

NPI1255131777
Entity TypeIndividualFemale
Primary Taxonomy367H00000X
Provider Legal NameCHLOE AFFTON TARBOXCredential: AA
Location Address300 UNIVERSITY BLVDRound Rock, TX 78665-1032
Mailing AddressPo Box 844658Dallas, TX 75284-4658 · (800) 994-0371 · Fax (254) 215-9722
Phone(817) 888-4802
Sole ProprietorNo
Medical School CMSOtherGraduated 2025
Enumeration DateMarch 14, 2025
Last NPPES UpdateSeptember 8, 20253 updates tracked since enumeration
NPPES CertifiedSeptember 8, 2025
✔ NPI 1255131777 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologist AssistantPhysician Assistants & Advanced Practice Nursing Providers
Taxonomy Code367H00000X
License✔ Licensed in TX · 789790576
Definition
An individual certified by the state to perform anesthesia services under the direct supervision of an anesthesiologist. Anesthesiologist Assistants are required to have a bachelor's degree with a premed curriculum prior to entering a two-year anesthesiology assistant program, which is focused upon the delivery and maintenance of anesthesia care as well as advanced patient monitoring techniques. An Anesthesiologist Assistant must work as a member of the anesthesia care team under the direction of a qualified Anesthesiologist.
300 UNIVERSITY BLVD, Round Rock, TX 78665
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas.Insurance ›

Medicare Participation & PECOS CMS

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

Medicare Enrollment Status

✔

Enrolled in Medicare and accepts Medicare assignment

Chloe Affton Tarbox Aa is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7214430065
PECOS Enrollment IDI20250909004498

Medicare Billing Reassignment

Medicare enrollment records show Chloe Tarbox reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Scott & White Clinic
8.8 mi
Internal Medicine
1701 E PFLUGERVILLE PKWY
Pflugerville, TX 78660
  • Reassigned Medicare billing, Texas enrollment
  • 2,795 clinicians in this Medicare group
NPI 1679691729 (512) 259-6000

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

Hospital Affiliations CMS Care Compare 2

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Baylor Scott & White Medical Center - Round Rock

Acute Care Hospitals · Round Rock, TX
3/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number670034
Location300 University BlvdRound Rock, TX 78664 · Williamson County
Emergency services Birthing friendly

Baylor Scott & White Medical Center Pflugerville

Acute Care Hospitals · Pflugerville, TX
OwnershipVoluntary non-profit - Private
CMS Certification Number670128
Location2600 East Pflugerville ParkwayPflugerville, TX 78660 · Travis County
Emergency services

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.

BRENNEN J. BEATTY MD
Emergency Medicine
300 UNIVERSITY BLVD
ROUND ROCK, TX 78665
Williamson County (512) 509-0100
KATHLEEN SUSAN GRADY-GREENE ARNP
Nurse Practitioner (Neonatal)
300 UNIVERSITY BLVD
ROUND ROCK, TX 78665
Williamson County (512) 509-0200
MATTHEW RYAN DANLEY D.O.
Anesthesiology
300 UNIVERSITY BLVD
ROUND ROCK, TX 78665
Williamson County (512) 509-0100
CODY R. QUIRK M.D.
Radiology (Diagnostic Radiology)
300 UNIVERSITY BLVD
ROUND ROCK, TX 78665
Williamson County (512) 509-0100
CAITLIN O'CONNOR CRNA
Nurse Anesthetist, Certified Registered
300 UNIVERSITY BLVD
ROUND ROCK, TX 78665
Williamson County (512) 509-0100
MARCEL ALBERT GRAF AA-C
Anesthesiologist Assistant
300 UNIVERSITY BLVD
ROUND ROCK, TX 78665
Williamson County (512) 509-0200
SADIE JOHNSON RN
Registered Nurse
300 UNIVERSITY BLVD
ROUND ROCK, TX 78665
Williamson County (940) 595-0169
DR. JACLYN NGOC MINH NGUYEN MD
Emergency Medicine
300 UNIVERSITY BLVD
ROUND ROCK, TX 78665
Williamson County (512) 509-0100

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 Chloe Tarbox's NPI number?

The NPI number for Chloe Tarbox is 1255131777. It was assigned to this individual provider in the NPPES registry on March 14, 2025.

Where is Chloe Tarbox located?

Chloe Tarbox practices at 300 University Blvd, Round Rock, TX 78665. The listed phone number is (817) 888-4802.

What is Chloe Tarbox's specialty?

The primary specialty registered for this NPI is Anesthesiologist Assistant with taxonomy code 367H00000X.

Is Chloe Tarbox enrolled in Medicare?

Yes. Chloe Tarbox is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

Which organization bills Medicare for Chloe Tarbox's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Chloe Tarbox reassigns Medicare benefits to Scott & White Clinic (Pflugerville, 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 Chloe Tarbox's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Chloe Tarbox accept?

Health plans from Blue Cross and Blue Shield of Texas list Chloe Tarbox 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.

Is Chloe Tarbox affiliated with any hospitals?

According to CMS data, Chloe Tarbox is affiliated with Baylor Scott & White Medical Center - Round Rock and Baylor Scott & White Medical Center Pflugerville.

When was this NPI record last updated?

The NPPES record for Chloe Tarbox was last updated on September 8, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 13 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.