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PATRICK NGUYEN MD
NPI 1144675562
Anesthesiology in Round Rock, TX

Active since May 04, 2016PECOS EnrolledAccepts Medicare Assignment
300 UNIVERSITY BLVD, ROUND ROCK, TX 78665(512) 509-0100(512) 218-6330 Get Directions Write a Review

NPPES record last updated: November 19, 2025. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Nov 19, 2025, Sep 8, 2025, Jul 1, 2020 (3 updates tracked since 2020).

About Patrick Nguyen Md NPPES

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

PATRICK NGUYEN MD (NPI 1144675562) is an individual anesthesiology provider in Round Rock, Texas, licensed in Texas (S4535) and active in the NPI registry since May 2016. He is enrolled in Medicare PECOS, is affiliated with St David's Medical Center, and maintains a secondary practice location in Austin.

NPPES Registry Identity

NPI1144675562
Entity TypeIndividualMale
Primary Taxonomy207L00000X
Provider Legal NamePATRICK NGUYENCredential: MD
Location Address300 UNIVERSITY BLVDRound Rock, TX 78665-1032
Mailing AddressPo Box 844658Dallas, TX 75284-4658 · (820) 099-4037 · Fax (254) 215-9722
Phone(512) 509-0100
Fax(512) 218-6330
Sole ProprietorNo
Medical School CMSUniversity Of Texas Medical School At HoustonGraduated 2016
Enumeration DateMay 4, 2016
Last NPPES UpdateNovember 19, 20253 updates tracked since enumeration
NPPES CertifiedNovember 19, 2025
✔ NPI 1144675562 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyAnesthesiologyAllopathic & Osteopathic Physicians
Taxonomy Code207L00000X
License✔ Licensed in TX · S4535
Definition
An anesthesiologist is trained to provide pain relief and maintenance, or restoration, of a stable condition during and immediately following an operation or an obstetric or diagnostic procedure. The anesthesiologist assesses the risk of the patient undergoing surgery and optimizes the patient's condition prior to, during and after surgery. In addition to these management responsibilities, the anesthesiologist provides medical management and consultation in pain management and critical care medicine. Anesthesiologists diagnose and treat acute, long-standing and cancer pain problems; diagnose and treat patients with critical illnesses or severe injuries; direct resuscitation in the care of patients with cardiac or respiratory emergencies, including the need for artificial ventilation; and supervise post-anesthesia recovery.
300 UNIVERSITY BLVD, Round Rock, TX 78665
Open in Google Maps ↗

Secondary Practice Location 1

Location 112221 N Mopac ExpyAustin, TX 78758-2401 · Phone (512) 901-1000

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas, Sendero Health Plans, Local Nonprofit.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

Patrick Nguyen Md 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 ID648560920
PECOS Enrollment IDI20201201001466
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 Reassignments

2

Medicare enrollment records show Patrick Nguyen reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

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
Austin Anesthesiology Group, PLLC
14 mi
Anesthesiology
8140 N MOPAC EXPY STE 3-210
Austin, TX 78759
  • Reassigned Medicare billing, Texas enrollment
  • 840 clinicians in this Medicare group
NPI 1598724304 (512) 343-2292

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

Areas of Expertise CMS Part B claims 2

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Anesthesia for x-ray or radiation therapy 01922
Anesthesia for x-ray or radiation therapy involves administering medication to help you relax or sleep during the procedure. It's used to ensure comfort, minimize movement, and reduce anxiety. The type of anesthesia used depends on the procedure and patient's health.
14 services14 patients
Anesthesia for procedure to assess heart electrical activity 00537
Anesthesia for a procedure to assess heart electrical activity helps ensure comfort and relaxation. It involves administering medication that either numbs a specific area or makes you sleep temporarily. This allows doctors to safely examine your heart's electrical signals without causing discomfort.
12 services12 patients

Hospital Affiliations CMS Care Compare 4

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

St David's Medical Center

Acute Care Hospitals · Austin, TX
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number450431
Location919 E 32nd StAustin, TX 78705 · Travis County
Emergency services Birthing friendly

North Austin Medical Center

Acute Care Hospitals · Austin, TX
4/5 CMS rating
OwnershipProprietary
CMS Certification Number450809
Location12221 Mopac Expressway NorthAustin, TX 78758 · Travis County
Emergency services Birthing friendly

Baylor Scott & White Medical Center - Buda

Acute Care Hospitals · Buda, TX
OwnershipVoluntary non-profit - Private
CMS Certification Number670131
Location5330 Overpass Road Suite 110Buda, TX 78610 · Hays County
Emergency services

Baylor Scott & White Medical Center- Austin

Acute Care Hospitals · Austin, TX
OwnershipVoluntary non-profit - Private
CMS Certification Number670136
Location5245 W Us 290Austin, TX 78735 · Travis County

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 Patrick Nguyen's NPI number?

The NPI number for Patrick Nguyen is 1144675562. It was assigned to this individual provider in the NPPES registry on May 4, 2016.

Where is Patrick Nguyen located?

Patrick Nguyen practices at 300 University Blvd, Round Rock, TX 78665. The listed phone number is (512) 509-0100.

What is Patrick Nguyen's specialty?

The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.

Is Patrick Nguyen enrolled in Medicare?

Yes. Patrick Nguyen 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 organizations bill Medicare for Patrick Nguyen's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Patrick Nguyen reassigns Medicare benefits to 2 organizations: Scott & White Clinic (Pflugerville, TX) and Austin Anesthesiology Group, PLLC (Austin, TX). Each 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 Patrick Nguyen's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Patrick Nguyen accept?

Health plans from Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Texas and Sendero Health Plans, Local Nonprofit list Patrick Nguyen 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 Patrick Nguyen affiliated with any hospitals?

According to CMS data, Patrick Nguyen is affiliated with St David's Medical Center, North Austin Medical Center, Baylor Scott & White Medical Center - Buda and Baylor Scott & White Medical Center- Austin.

When was this NPI record last updated?

The NPPES record for Patrick Nguyen was last updated on November 19, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.