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Edit this profileAt a glance
- 307 S 13Th St Ste 300, Mount Vernon, WA 98274
About Dr. Liu
Rex C. Liu, MD practices cardiovascular disease in Mount Vernon, WA. Rex is a 1998 graduate of Tulane University School of Medicine. Rex is also listed as specializing in internal medicine and interventional cardiology. Medicare claims data shows Rex provided 3,696 services to 3,168 patients. The services billed most often include routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only, routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only, and ultrasound of heart with color-depicted blood flow, rate, direction and valve function. The provider's National Provider Identifier (NPI) is 1427082593.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (360) 336-9757
- Email not available
Practice Locations
307 S 13TH ST STE 300
Mount Vernon, WA 98274
Conditions Commonly Evaluated or Treated
Within Cardiovascular Disease generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Specialized cardiovascular care
Most searched conditions
Coronary and ischemic heart disease
Heart failure and cardiomyopathy
Heart rhythm
Symptoms and functional disorders
Valve and structural heart
Vascular and risk factors
Artery & vascular
Heart inflammation
Heart muscle
Heart valves
Vascular disease
Procedures & services
Advanced imaging
- Cardiac computed tomography
- Coronary artery calcium scan
- Transesophageal echocardiogram
- Cardiac magnetic resonance imaging
- Nuclear cardiac stress imaging
Catheter-based diagnosis and treatment
Heart & circulation
Life Support
Office and noninvasive testing
- Cardiology consultation
- Exercise stress test
- Pharmacologic cardiac stress test
- Stress echocardiogram
- Transthoracic echocardiogram
- Ambulatory blood-pressure monitoring
Structural heart
Most searched procedures
Consultations
Diagnostic testing
Diagnostics
Heart devices
- Biventricular Pacemaker (Cardiac Resynchronization Therapy)
- Implantable Loop Recorder (Cardiac Monitor Implant)
Heart imaging
Heart procedures
Heart rhythm procedures
- Radiofrequency ablation
Imaging
Implants
Recovery & rehabilitation
Vascular imaging
Procedures Most Often Billed to Medicare
3,696 services · 3,168 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Nuclear medicine studies of heart muscle at rest and with stress and spect | Imaging | 78452 |
50 | As often as other peers in Cardiovascular Disease |
| Ultrasonic guidance for blood vessel access | Imaging | 76937 |
25 | As often as other peers in Cardiovascular Disease |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
1,273 | More than most peers in Cardiovascular Disease |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
453 | More than most peers in Cardiovascular Disease |
| Ultrasound of heart with color-depicted blood flow, rate, direction and valve function | Treatment | 93306 |
364 | More often than most peers in Cardiovascular Disease |
| Exercise or drug-induced heart stress test with electrocardiogram (ecg) with review by physician | Treatment | 93018 |
115 | More often than most peers in Cardiovascular Disease |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report | Treatment | 93000 |
81 | Less often than most peers in Cardiovascular Disease |
| Ultrasound of heart, follow-up | Treatment | 93308 |
57 | More often than most peers in Cardiovascular Disease |
| Ultrasound of heart blood flow, valves and chambers, follow-up | Treatment | 93321 |
48 | More often than most peers in Cardiovascular Disease |
| Ultrasound of heart with color-depicted blood flow, rate and valve function | Treatment | 93325 |
43 | As often as other peers in Cardiovascular Disease |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other cardiologists at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 31 related providers in 4 groups
Other cardiologists in Mount Vernon 7
Same specialty, same city.
Trained at Tulane University School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1998 at Tulane University School of Medicine 8
Providers who graduated from the same medical school in the same year.
Also performs Nuclear medicine studies of heart muscle at rest and with stress and spect 8
Providers in WA who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Liu?
Dr. Liu is a cardiologist in Mount Vernon, WA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Cardiovascular Disease”.
NPI registry
What is Dr. Liu's address?
Dr. Liu is listed at 307 S 13Th St Ste 300, Mount Vernon, WA 98274. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Liu?
The number on file is (360) 336-9757. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Liu?
Dr. Liu's National Provider Identifier is 1427082593. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Liu train?
Dr. Liu attended Tulane University School of Medicine, graduating in 1998. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Liu have?
Dr. Liu has 28 years experience. Calculated from a graduation year of 1998, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Liu perform?
According to Medicare billing data, Dr. Liu performs imaging including nuclear medicine studies of heart muscle at rest and with stress and spect and ultrasonic guidance for blood vessel access; provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report only and ultrasound of heart with color-depicted blood flow, rate, direction and valve function, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Liu's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Liu. If this is you, claiming it is free.
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