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DR. CHRISTOPHER WALTON BRENNIG M.D.
NPI 1922103159
Surgery - Vascular Surgery in Austin, TX

Active since September 13, 2006PECOS EnrolledAccepts Medicare Assignment
7000 NORTH MOPAC EXPRESSWAY, SUITE 320, AUSTIN, TX 78731(512) 346-8346(512) 346-8343 Get Directions Write a Review

NPPES record last updated: March 4, 2009. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Christopher Walton Brennig M.d. NPPES

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

DR. CHRISTOPHER WALTON BRENNIG M.D. (NPI 1922103159) is an individual vascular surgery provider in Austin, Texas, licensed in Texas (L5999) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS and is a graduate of University Of Texas Medical School At Houston (1999).

NPPES Registry Identity

NPI1922103159
Entity TypeIndividualMale
Primary Taxonomy2086S0129X
Provider Legal NameDR. CHRISTOPHER WALTON BRENNIGCredential: M.D.
Location Address7000 NORTH MOPAC EXPRESSWAY, SUITE 320Austin, TX 78731-3258
Mailing Address7000 North Mopac Expressway, Suite 320Austin, TX 78731-3258 · (512) 346-8346 · Fax (512) 346-8343
Phone(512) 346-8346
Fax(512) 346-8343
Sole ProprietorYes
Medical School CMSUniversity Of Texas Medical School At HoustonGraduated 1999
Enumeration DateSeptember 13, 2006
Last NPPES UpdateMarch 4, 2009
✔ NPI 1922103159 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtySurgery · Vascular SurgeryAllopathic & Osteopathic Physicians
Taxonomy Code2086S0129X
License✔ Licensed in TX · L5999
Definition
A surgeon with expertise in the management of surgical disorders of the blood vessels, excluding the intracranial vessels or the heart.
7000 NORTH MOPAC EXPRESSWAY, Austin, TX 78731
Open in Google Maps ↗

Other Identifiers 4

Medicare PIN8J2159TX
Medicare UPINI68583TX
Other8BW995TX · Bcbs
Medicare PIN8F10188TX

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

Dr. Christopher Walton Brennig M.d. 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 ID7113029554
PECOS Enrollment IDI20070302000426
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 Christopher Brennig reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Austin Vascular Institute PA
1.3 mi
Surgery
7000 NORTH MOPAC EXPRESSWAY, SUITE 320
Austin, TX 78731
  • Reassigned Medicare billing, Texas enrollment
NPI 1487890620 (512) 346-8346

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 6

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.

Injection of chemical agent into single incompetent vein of leg using ultrasound guidance 36465
This procedure involves injecting a chemical agent into a non-functioning vein in your leg. Ultrasound technology is used to accurately locate the vein. The chemical helps to close off the vein, rerouting blood flow to healthier veins.
51 services41 patients
Ultrasound study of arm or leg veins with compression and maneuvers 93970
An ultrasound study of arm or leg veins with compression and maneuvers is a non-invasive procedure that uses sound waves to create images of your veins. This helps identify blood clots or other vein problems. During the procedure, pressure is applied to the veins and certain movements are performed to assess blood flow.
38 services35 patients
Ultrasound study of one arm or leg veins with compression and maneuvers 93971
This is a non-invasive procedure using sound waves to visualize veins in an arm or leg. It involves applying gentle pressure and performing certain movements. It helps identify any abnormal blood flow or clots, ensuring vascular health.
33 services26 patients
Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more 99212
This is a routine check-up for patients who have previously seen the doctor. During this 10-19 minute visit, the doctor will review your health status, discuss any concerns, and manage ongoing treatments or medications. It's a chance to ensure your health is on track.
29 services25 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
27 services24 patients
New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more 99203
This service involves an initial office or outpatient visit for a new patient. The healthcare professional will spend 30-44 minutes understanding your health history, current issues, and discussing possible treatment plans. It's a comprehensive evaluation to start your healthcare journey.
23 services23 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78731 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
$89.03 typical visit price
range $57.88 – $174.00
Typical copayment $22.25 (range $14.47 – $43.50)
Most-billed visit code 99203
Established Patient
$71.95 typical visit price
range $18.88 – $142.23
Typical copayment $17.98 (range $4.72 – $35.55)
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 2

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

AUSTIN VASCULAR INSTITUTE PA
Surgery
7000 NORTH MOPAC EXPRESSWAY, SUITE 320
AUSTIN, TX 78731
Travis County (512) 346-8346
DR. ZAINAB ABDULLA M.D.
Internal Medicine
7000 NORTH MOPAC EXPRESSWAY, #420
AUSTIN, TX 78731
Travis County (512) 482-0045

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 Christopher Brennig's NPI number?

The NPI number for Christopher Brennig is 1922103159. It was assigned to this individual provider in the NPPES registry on September 13, 2006.

Where is Christopher Brennig located?

Christopher Brennig practices at 7000 North Mopac Expressway Suite 320, Austin, TX 78731. The listed phone number is (512) 346-8346.

What is Christopher Brennig's specialty?

The primary specialty registered for this NPI is Surgery, specializing in Vascular Surgery, with taxonomy code 2086S0129X.

Is Christopher Brennig enrolled in Medicare?

Yes. Christopher Brennig 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 Christopher Brennig's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Christopher Brennig reassigns Medicare benefits to Austin Vascular Institute PA (Austin, 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 Christopher Brennig's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Christopher Brennig accept?

Health plans from Blue Cross and Blue Shield of Texas list Christopher Brennig 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 Christopher Brennig was last updated on March 4, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.