Physician Profile
Charles H. Machell, M.D.
Unclaimed ProfileAbout Dr. Machell
Charles H. Machell, M.D. is a healthcare provider in San Antonio, TX specializing in clinical cardiac electrophysiology. Charles trained at University of Texas Medical Branch at Galveston, graduating in 1980. Medicare claims data shows Charles provided 1,062 services to 665 patients. The services billed most often include routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only, established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, and evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
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
- (210) 615-0494
- Email not available
Practice Locations
6800 IH 10 W STE 350
San Antonio, TX 78201
707 E Marshall Ave
Longview, TX 75601
4604 NE Stallings Dr
Nacogdoches, TX 75965
703 E Marshall Ave Ste 5007
Longview, TX 75601
Conditions Commonly Evaluated or Treated
Within Clinical Cardiac Electrophysiology 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
Most searched conditions
Abnormal heart rhythms
- Atrial Tachycardia
- Premature atrial contractions
Autonomic disorders
Conduction disorders
- Bundle Branch Block
- Heart block
- Junctional Rhythm
- Tachy-Brady Syndrome
Dangerous heart rhythms
- Cardiac Arrest
- Ventricular Fibrillation
- Ventricular tachycardia
Device complications
Device issues
- Frequent Defibrillator Shocks
- Pacemaker Syndrome
Fainting & reflex disorders
- Carotid Sinus Hypersensitivity
Genetic heart conditions
- Arrhythmogenic Right Ventricular Dysplasia
- Brugada Syndrome
- Catecholaminergic Polymorphic Ventricular Tachycardia
- Long QT syndrome
Heart failure and muscle
- Weak Heart Muscle
Heart muscle conditions
- Cardiac Sarcoidosis
- Hypertrophic cardiomyopathy
Heart rhythm disorders
- Inappropriate Sinus Tachycardia
- Supraventricular tachycardia
- Wolff-Parkinson-White Syndrome
Inherited rhythm disorders
- Short QT Syndrome
Structural heart conditions
- Arrhythmic Mitral Valve Prolapse
Symptoms
- Dizziness and Lightheadedness
- Fainting and syncope
- Heart palpitations
- Premature ventricular contractions
- Slow heart rate (bradycardia)
Procedures & services
Most searched procedures
- AFib ablation
- Angioplasty and stenting
- Cardiac catheterization
- Pacemaker implantation
- Watchman procedure
Advanced therapies
- Stereotactic Cardiac Radioablation (STAR)
Catheter ablation
- AV Node Ablation
- Cardioneuroablation
- Cryoablation
- Epicardial Catheter Ablation
- Heart Flutter Ablation
- Pulsed Field Ablation
- PVC Ablation
- Ventricular Tachycardia Ablation
Device care
- Pacemaker Check
- Remote Device Monitoring
Device management
- Pacemaker or Defibrillator Reprogramming
Device placement
- Extravascular Defibrillator Placement (EV-ICD)
Device procedures
- Cardiac resynchronization therapy device placement
- Conduction System Pacing
- Implantable cardioverter-defibrillator placement
- Leadless Pacemaker Placement
- Pacemaker Battery Replacement
- Pacemaker Lead Removal
- Subcutaneous Defibrillator Placement
Diagnostic imaging
- Cardiac MRI for Heart Scarring
- Transesophageal echocardiogram
Diagnostic monitoring
- 24-Hour Holter Monitor
- Exercise Stress Test for Arrhythmia
Diagnostic testing
- Brugada Drug Challenge Test
- Carotid Sinus Massage
Diagnostic tests
- 30-Day Cardiac Event Monitor
- Electrophysiology study
- Genetic Arrhythmia Testing
- Heart monitor
- Implantable Loop Recorder (Cardiac Monitor Implant)
- Tilt Table Test
- Wearable Heart Patch Monitor
External devices
- LifeVest Fitting
Heart rhythm treatments
- AED Shock or Defibrillation
Medication management
- Heart Rhythm Medication Management
Minor device procedures
- Loop Recorder Removal
Rhythm restoration
Stroke prevention
Procedures Most Often Billed to Medicare
1,062 services · 665 patients · 10 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of pacemaker and upper and lower heart chamber electrode | Procedure | 33208 |
13 | Less often than most peers in Clinical Cardiac Electrophysiology |
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
394 | As often as other peers in Clinical Cardiac Electrophysiology |
| Evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days | Treatment | 93294 |
155 | Less often than most peers in Clinical Cardiac Electrophysiology |
| Evaluation of single, dual, or multiple lead implantable defibrillator system, remote up to 90 days | Treatment | 93295 |
67 | Less often than most peers in Clinical Cardiac Electrophysiology |
| Heart rhythm review and interpretation of continous external ekg over 8-15 days | Treatment | 93248 |
52 | As often as other peers in Clinical Cardiac Electrophysiology |
| Heart rhythm review, and interpretation of continous external ekg over more than 48 hours up to 7 days | Treatment | 93244 |
19 | Less often than most peers in Clinical Cardiac Electrophysiology |
| External shock to heart to regulate heart beat | Treatment | 92960 |
14 | Less often than most peers in Clinical Cardiac Electrophysiology |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
279 | More often than most peers in Clinical Cardiac Electrophysiology |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
57 | As often as other peers in Clinical Cardiac Electrophysiology |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
12 | Less often than most peers in Clinical Cardiac Electrophysiology |
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.
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.
Other clinical cardiac electrophysiology specialists in San Antonio 8
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at University of Texas Medical Branch at Galveston 8
Other providers in the same specialty who trained at the same institution.
Class of 1980 at University of Texas Medical Branch at Galveston 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of pacemaker and upper and lower heart chamber electrode 8
Providers in TX who bill this service to Medicare most often.
Common questions
What kind of doctor is Charles H. Machell?
Charles H. Machell is a clinical cardiac electrophysiology in San Antonio, TX. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is Charles H. Machell's address?
Charles H. Machell is listed at 6800 Ih 10 W Ste 350, San Antonio, TX 78201. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Charles H. Machell?
The number on file is (210) 615-0494. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Charles H. Machell?
Charles H. Machell's National Provider Identifier is 1245230507. 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 Charles H. Machell train?
Charles H. Machell attended University of Texas Medical Branch at Galveston, graduating in 1980. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Charles H. Machell have?
Charles H. Machell has 46 years experience. Calculated from a graduation year of 1980, reported in the CMS National Downloadable File.
CMS public data
What procedures does Charles H. Machell perform?
According to Medicare billing data, Charles H. Machell performs procedures including insertion of pacemaker and upper and lower heart chamber electrode; provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report only and evaluation of single, dual, multiple lead or leadless pacemaker system, remote up to 90 days, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Charles H. Machell's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Charles H. Machell. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.