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WEIWEI CAO M.D., PHD
NPI 1992987283
Internal Medicine - Gastroenterology in Cedar Park, TX

Active since November 29, 2007PECOS EnrolledAccepts Medicare Assignment
1401 MEDICAL PKWY BLDG. B STE. 200, CEDAR PARK, TX 78613(512) 260-1581(512) 406-7309 Get Directions Write a Review

NPPES record last updated: December 23, 2024. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Dec 23, 2024, Jun 18, 2021, Oct 21, 2019 and 4 more (7 updates tracked since 2017).

About Weiwei Cao M.d., Phd NPPES

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

WEIWEI CAO M.D., PHD (NPI 1992987283) is an individual gastroenterology provider in Cedar Park, Texas, licensed in Texas (Q0614) and active in the NPI registry since November 2007. She is enrolled in Medicare PECOS and is a graduate of Other (1998).

NPPES Registry Identity

NPI1992987283
Entity TypeIndividualFemale
Primary Taxonomy207RG0100X
Provider Legal NameWEIWEI CAOCredential: M.D., PHD
Location Address1401 MEDICAL PKWY BLDG. B STE. 200Cedar Park, TX 78613-5013
Mailing Address6210 E Highway 290Austin, TX 78723-1142 · (512) 483-9569 · Fax (512) 406-6216
Phone(512) 260-1581
Fax(512) 406-7309
Sole ProprietorNo
Medical School CMSOtherGraduated 1998
Enumeration DateNovember 29, 2007
Last NPPES UpdateDecember 23, 20247 updates tracked since enumeration
NPPES CertifiedDecember 23, 2024
✔ NPI 1992987283 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyInternal Medicine · GastroenterologyAllopathic & Osteopathic Physicians
Taxonomy Code207RG0100X
License✔ Licensed in TX · Q0614
Definition
An internist who specializes in diagnosis and treatment of diseases of the digestive organs including the stomach, bowels, liver and gallbladder. This specialist treats conditions such as abdominal pain, ulcers, diarrhea, cancer and jaundice and performs complex diagnostic and therapeutic procedures using endoscopes to visualize internal organs.
Also ListedInternal MedicineTaxonomy 207R00000X · License A110717 (CA)
1401 MEDICAL PKWY BLDG. B STE. 200, Cedar Park, TX 78613
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Other Identifiers 2

Medicaid339995802TX
Medicaid339995803TX

Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Blue Cross and Blue Shield of Texas, Moda Health Plan, Inc., Sendero Health Plans, Local Nonprofit 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 and accepts Medicare assignment

Weiwei Cao M.d., Phd 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 ID5092940510
PECOS Enrollment IDI20141027000781
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 Weiwei Cao reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Austin Regional Clinic, PA
16 mi
Family Medicine
6210 E US HWY 290, SUITE 420 - CREDENTIALING
Austin, TX 78723
  • Reassigned Medicare billing, Texas enrollment
  • 461 clinicians in this Medicare group
NPI 1821157579 (512) 231-5516

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.

Biopsy of large bowel using a flexible endoscope 45380
A biopsy of the large bowel using a flexible endoscope is a procedure where a thin, flexible tube with a camera is inserted through the rectum to examine the bowel. If abnormal tissue is found, a small sample is taken for further examination. This helps in diagnosing conditions like inflammation, polyps, or cancer.
70 services70 patients
Removal of polyps or growths of large bowel using an endoscope with mechanical snare 45385
This procedure involves using a thin, flexible tube called an endoscope to examine the large bowel. If any abnormal growths or polyps are found, a tool called a mechanical snare is used to remove them. This is a common method to prevent potential health issues.
59 services59 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
37 services36 patients
New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more 99204
This is a first-time office or outpatient visit lasting between 45-59 minutes. The healthcare provider evaluates your health, discusses your medical history, and may suggest further tests or treatments. It's an opportunity to ask questions and understand your health better.
27 services27 patients
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 43239
This procedure involves using a thin, flexible tube with a light and camera, known as an endoscope, to examine the esophagus, stomach, and upper part of the small intestine. Small tissue samples are taken for further examination to help diagnose various conditions.
25 services24 patients
Removal of large bowel tissue using a flexible endoscope 45390
This procedure, known as a colonoscopy, involves using a flexible endoscope to examine and potentially remove tissue from the large intestine. The endoscope allows the doctor to view the bowel lining directly and remove any abnormal tissue for further analysis.
16 services16 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 78613 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
$126.40 typical visit price
range $54.84 – $166.88
Typical copayment $31.60 (range $13.71 – $41.72)
Most-billed visit code 99204
Established Patient
$97.05 typical visit price
range $17.52 – $136.11
Typical copayment $24.26 (range $4.38 – $34.02)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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 Weiwei Cao's NPI number?

The NPI number for Weiwei Cao is 1992987283. It was assigned to this individual provider in the NPPES registry on November 29, 2007.

Where is Weiwei Cao located?

Weiwei Cao practices at 1401 Medical Pkwy Bldg. B Ste. 200, Cedar Park, TX 78613. The listed phone number is (512) 260-1581.

What is Weiwei Cao's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.

Is Weiwei Cao enrolled in Medicare?

Yes. Weiwei Cao 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 Weiwei Cao's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Weiwei Cao reassigns Medicare benefits to Austin Regional Clinic, 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 Weiwei Cao's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Weiwei Cao accept?

Health plans from Blue Cross and Blue Shield of Texas, Moda Health Plan, Inc., Sendero Health Plans, Local Nonprofit and UnitedHealthcare list Weiwei Cao 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 Weiwei Cao was last updated on December 23, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 22 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.