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Recently Updated NPI Information — some details in this NPI profile have been updated in the NPI registry within the last 60 days.

DR. HIEP A CAO M.D.
NPI 1235208430
Internal Medicine in Garland, TX

Active since November 06, 2006PECOS EnrolledAccepts Medicare Assignment
3465 W WALNUT ST STE 211B, GARLAND, TX 75042(214) 703-9788(214) 703-9799 Get Directions Write a Review

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

Record update history: Sep 29, 2026, Jul 24, 2024 (2 updates tracked since 2024).

About Dr. Hiep A Cao M.d. NPPES

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

DR. HIEP A CAO M.D. (NPI 1235208430) is an individual internal medicine provider in Garland, Texas, licensed in Texas (N8770) and active in the NPI registry since November 2006. He is enrolled in Medicare PECOS and is a graduate of University Of Kansas School Of Med (kc/wich/sal) (1996).

NPPES Registry Identity

NPI1235208430
Entity TypeIndividualMale
Primary Taxonomy207R00000X
Provider Legal NameDR. HIEP A CAOCredential: M.D.
Location Address3465 W WALNUT ST STE 211BGarland, TX 75042-7140
Mailing Address3465 W Walnut St Ste 211bGarland, TX 75042-7140 · (214) 794-9448 · Fax (580) 256-9267
Phone(214) 703-9788
Fax(214) 703-9799
Sole ProprietorYes
Medical School CMSUniversity Of Kansas School Of Med (kc/wich/sal)Graduated 1996
Enumeration DateNovember 6, 2006
Last NPPES UpdateSeptember 29, 20262 updates tracked since enumeration
NPPES CertifiedJuly 24, 2024
✔ NPI 1235208430 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyInternal MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207R00000X
License✔ Licensed in TX · N8770
Definition
A physician who provides long-term, comprehensive care in the office and the hospital, managing both common and complex illness of adolescents, adults and the elderly. Internists are trained in the diagnosis and treatment of cancer, infections and diseases affecting the heart, blood, kidneys, joints and digestive, respiratory and vascular systems. They are also trained in the essentials of primary care internal medicine, which incorporates an understanding of disease prevention, wellness, substance abuse, mental health and effective treatment of common problems of the eyes, ears, skin, nervous system and reproductive organs.
3465 W WALNUT ST STE 211B, Garland, TX 75042
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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections 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

Dr. Hiep A Cao 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 ID5193892818
PECOS Enrollment IDI20120104000366
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 Hiep Cao reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Hv Cao Medical Clinic, LLC
0.1 mi
Family Medicine
3465 W WALNUT ST, SUITE 211B
Garland, TX 75042
  • Reassigned Medicare billing, Texas enrollment
NPI 1982994182 (580) 628-7716

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.

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.
262 services43 patients
Injection, triamcinolone acetonide, not otherwise specified, 10 mg J3301
Triamcinolone acetonide is a medication used to reduce inflammation in the body. It's given as a 10 mg injection for conditions like allergies, arthritis, or skin problems. The injection helps to decrease swelling, redness, and itching.
168 services15 patients
Insertion of needle into vein (3 years or older) 36410
This procedure involves placing a small needle into a vein, typically in the arm. It's done to collect blood for testing or to deliver medication. You may feel a quick pinch, but it's usually over in seconds. It's a common, safe procedure.
108 services40 patients
Automated urinalysis test 81003
An automated urinalysis test is a routine examination that checks your urine for various substances. It can help identify potential health issues such as kidney problems or diabetes. The test uses a machine to analyze a small urine sample, providing quick and accurate results.
92 services39 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.
40 services25 patients
Injection of drug or substance under skin or into muscle 96372
This procedure involves administering medication directly under the skin or into a muscle. A small needle is used to inject the drug, allowing it to be absorbed quickly into the bloodstream. It's a common method for delivering a variety of medications.
30 services17 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 75042 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
$100.80 typical visit price
range $18.48 – $141.20
Typical copayment $25.20 (range $4.62 – $35.30)
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.

Referred Medical Equipment & Supplies CMS DME claims

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Blood glucose test or reagent strips for home blood glucose monitor, per 50 strips A4253
DME-Other DME · category DE017N
4 suppliers12 claims35 services$4.83 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

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 Hiep Cao's NPI number?

The NPI number for Hiep Cao is 1235208430. It was assigned to this individual provider in the NPPES registry on November 6, 2006.

Where is Hiep Cao located?

Hiep Cao practices at 3465 W Walnut St Ste 211B, Garland, TX 75042. The listed phone number is (214) 703-9788.

What is Hiep Cao's specialty?

The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.

Is Hiep Cao enrolled in Medicare?

Yes. Hiep 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 Hiep Cao's services?

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

What insurance does Hiep Cao accept?

Health plans from Ambetter Health, Ambetter from Arizona Complete Health, Ambetter from Arkansas Health & Wellness, Ambetter from Louisiana Healthcare Connections and Ambetter from Superior HealthPlan and 4 other insurers list Hiep 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 Hiep Cao was last updated on September 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 23 days 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.