MS. SARA L O'CONNOR CRNA
NPI 1831190073
Nurse Anesthetist, Certified Registered in Mesquite, TX

Q: What is Sara O'connor's NPI number?

The NPI number for Sara O'connor is 1831190073. It was assigned to this individual provider in the NPPES registry on August 10, 2005. The provider is also known as Ms. Sara L Grzeskowiak Crna.

Q: What is Sara O'connor's specialty?

The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.

Q: When was this NPI record last updated?

The NPPES record for Sara O'connor was last updated on October 29, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years 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.

Active since August 10, 2005Accepts Medicare Assignment

2704 N GALLOWAY AVE STE 102, MESQUITE, TX 75150(972) 961-7171(636) 537-0480 Get Directions Write a Review

NPPES record last updated: October 29, 2019. Verified against the NPPES registry weekly; last sync: October 18, 2026.

On this page

About Ms. Sara L O'connor Crna NPPES

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

MS. SARA L O'CONNOR CRNA (NPI 1831190073) is an individual nurse anesthetist, certified registered in Mesquite, Texas, licensed in Texas (AP139239) and active in the NPI registry since August 2005. She is a graduate of Other (1986).

NPPES Registry Identity

NPI1831190073

Entity TypeIndividualFemale

Primary Taxonomy367500000X

Provider Legal NameMS. SARA L O'CONNORCredential: CRNA

Location Address2704 N GALLOWAY AVE STE 102Mesquite, TX 75150-6379

Mailing AddressPo Box 224047Dallas, TX 75222-4047 · (844) 565-6466 · Fax (302) 709-2402

Phone(972) 961-7171

Fax(636) 537-0480

Sole ProprietorNo

Medical School CMSOtherGraduated 1986

Enumeration DateAugust 10, 2005

Last NPPES UpdateOctober 29, 2019

✔ NPI 1831190073 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyNurse Anesthetist, Certified RegisteredPhysician Assistants & Advanced Practice Nursing Providers

Taxonomy Code367500000X

Licenses✔ Licensed in TX · AP139239✔ Licensed in MO · 094025

Definition

(1) A licensed registered nurse with advanced specialty education in anesthesia who, in collaboration with appropriate health care professionals, provides preoperative, intraoperative, and postoperative care to patients and assists in management and resuscitation of critical patients in intensive care, coronary care, and emergency situations. Nurse anesthetists are certified following successful completion of credentials and state licensure review and a national examination directed by the Council on Certification of Nurse Anesthetists. (2) A registered nurse who is qualified by special training to administer anesthesia in collaboration with a physician or dentist and who can assist in the care of patients who are in critical condition.

2704 N GALLOWAY AVE STE 102, Mesquite, TX 75150

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Other Names 1

Former Name (1)Ms. Sara L Grzeskowiak Crna

Other Identifiers 1

Medicaid912804358MO

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.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

Ms. Sara L O'connor Crna 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 ID7517947997

PECOS Enrollment IDI20040726000229

Medicare Billing Reassignments

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

Endo Sedation LLC

Same address

Nurse Anesthetist, Certified Registered

2704 N GALLOWAY AVE STE 102
Mesquite, TX 75150

Reassigned Medicare billing, Texas enrollment
710 clinicians in this Medicare group

NPI 1447792700 (972) 961-7171

Digestive Health Specialists, LLC

449 mi

Gastroenterology

3800 S WHITNEY AVE, SUITE 200
Independence, MO 64055

Reassigned Medicare billing, Missouri enrollment
146 clinicians in this Medicare group

NPI 1801286844 (816) 478-4887

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 4

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 other procedure on large bowel using an endoscope 00811

Anesthesia for an endoscopic procedure on the large bowel ensures comfort and relaxation during the procedure. You'll be given medication to make you drowsy or asleep, eliminating any discomfort. The medication can be administered through a vein or inhaled.

239 services239 patients

Anesthesia for exam of colon using an endoscope 00812

Anesthesia for a colon examination with an endoscope is a method used to ensure comfort during the procedure. It involves administering medication to help you relax or sleep, thus reducing discomfort as the endoscope, a thin, flexible tube, is navigated through your colon.

109 services109 patients

Anesthesia for other procedure on esophagus, stomach, or upper small bowel using an endoscope 00731

This procedure involves the use of an endoscope, a flexible tube with a light and camera, to examine your esophagus, stomach, or upper small bowel. Anesthesia ensures you are comfortable and pain-free during the procedure.

92 services91 patients

Anesthesia for procedure on small and large bowel using an endoscope 00813

Anesthesia for an endoscopic procedure on the small and large bowel ensures comfort and relaxation during the procedure. It involves administering medicine to help you sleep or feel drowsy. This allows the doctor to examine your bowels without causing you discomfort or pain.

61 services61 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 75150 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$131.01 typical visit price

range $57.18 – $172.86

Typical copayment $32.75 (range $14.29 – $43.21)

Most-billed visit code 99204

Established Patient

$71.28 typical visit price

range $18.48 – $141.20

Typical copayment $17.82 (range $4.62 – $35.30)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES

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

ENDO SEDATION LLC

Nurse Anesthetist, Certified Registered

2704 N GALLOWAY AVE STE 102
MESQUITE, TX 75150

Dallas County (972) 961-7171

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 Sara O'connor's NPI number?

The NPI number for Sara O'connor is 1831190073. It was assigned to this individual provider in the NPPES registry on August 10, 2005. The provider is also known as Ms. Sara L Grzeskowiak Crna.

Where is Sara O'connor located?

Sara O'connor practices at 2704 N Galloway Ave Ste 102, Mesquite, TX 75150. The listed phone number is (972) 961-7171.

What is Sara O'connor's specialty?

The primary specialty registered for this NPI is Nurse Anesthetist, Certified Registered with taxonomy code 367500000X.

Is Sara O'connor enrolled in Medicare?

Yes. Sara O'connor 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 Sara O'connor's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Sara O'connor reassigns Medicare benefits to 2 organizations: Endo Sedation LLC (Mesquite, TX) and Digestive Health Specialists, LLC (Independence, MO). 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 Sara O'connor's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Sara O'connor accept?

Health plans from Baylor Scott and White Health Plan and Blue Cross and Blue Shield of Texas list Sara 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 Sara O'connor was last updated on October 29, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 6 years 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.