Physician Profile
Mark A. St. Cyr, MD
Unclaimed ProfileAbout Dr. St. Cyr
Mark A. St. Cyr, MD is a healthcare provider in Lafayette, LA specializing in emergency medical services. Mark trained at Louisiana State University School of Medicine in Shreveport, graduating in 1986. Medicare claims data shows Mark provided 183 services to 176 patients. The services billed most often include emergency department visit with moderate level of medical decision making, emergency department visit with high level of medical decision making, and emergency department visit with low level of medical decision making.
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
- (337) 261-0734
- Email not available
Practice Locations
2100 JEFFERSON ST
Lafayette, LA 70501
Conditions Commonly Evaluated or Treated
Within Emergency Medical Services 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
Abdominal
- Abdominal Pain
Airway & breathing
- Choking or swallowed object
- Coughing up blood
Allergies & Immune
- Severe Allergic Shock
Brain & nerve
- Sudden Confusion or Altered Mental State
- Sudden Severe Vertigo and Inability to Stand
Brain & Nervous System
- Fainting and syncope
- Ischemic stroke
- Severe headache or sudden migraine
- Status epilepticus
- Transient ischemic attack
- Unresponsiveness
Breathing & Airway
- Narrowed windpipe
- Severe asthma attack
- Shortness of breath
- Smoke Inhalation
Digestive emergency
- Vomiting or throwing up blood
Environmental
- Drowning or Near Drowning
- Heat stroke
- Hypothermia and frostbite
- Snake Bite or Venomous Sting
General emergency
- Severe dehydration
Heart & Circulation
- Cardiac Arrest
- Heart attack
- Unexplained chest pain
Heart & circulation
- Racing or Fluttering Heart
- Sudden Tearing Back Pain
Infections
- Sepsis or blood infection
- Stiff Neck with High Fever
Mental Health
- Mental Health Crisis
Metabolic
- Dangerous high blood sugar
Pediatric emergency
- Child Febrile Seizure
- Difficulty Breathing in Infants
Poisoning & Overdose
- Alcohol Poisoning
- Drug overdose or poisoning
Poisoning & toxins
- Swallowed Household Cleaner or Poison
Pregnancy
- Emergency Childbirth
Surgical emergency
- Post-Surgery Wound Opening or Bleeding
Trauma & Injury
- Bone fractures
- Car accident injuries
- Concussion in Children
- Deep Cuts and Stab Wounds
- Electric Shock
- Gunshot Wound
- Serious Fall Injury
- Severe Burns
- Uncontrolled bleeding
Trauma & injury
- Crush Injury
- Internal Bleeding
- Motorcycle Crash Injury
- Pedestrian Hit by Car
- Severe Dog Bite or Animal Attack
- Spinal Cord Injury and Paralysis
Procedures & services
Airway & breathing
- Bag Valve Mask Ventilation
- Continuous Positive Airway Pressure
- Supraglottic Airway Insertion
Airway & Breathing
- Choking Relief Maneuver
- Emergency intubation
- Nebulizer Breathing Treatment
- Oxygen therapy
- Suctioning the Airway
Community Care
- Community Paramedic Home Visit
Critical Care
- Chest Needle Decompression
- Emergency Baby Delivery Assistance
Diagnostic
- Fingerstick Blood Sugar Test
- Pulse Oximetry Oxygen Check
Emergency Medication
- Emergency epinephrine injection
- Emergency Heart Attack Medication
- Emergency Pain Relief
- Emergency Seizure Medication
- Low Blood Sugar Treatment
- Narcan overdose reversal
- Starting an IV in Ambulance
Emergency Transport
- 911 Ambulance Dispatch
- Emergency Medical Transport
- Hospital-to-Hospital Transfer
- Medical Helicopter Transport
EMS services
- Emergency Lift Assist
- Event Paramedic Standby
- Hospital Emergency Pre-Notification
- On-Scene Treat and Release
- Stair Chair Evacuation
EMS transport
- Bariatric Ambulance Transport
- Critical Care Ambulance Transport
- Long Distance Ambulance Transport
- Pediatric Critical Care Transport
- Wheelchair Van Medical Transport
Environmental Care
- Rapid Cooling for Heat Stroke
Evaluation & Testing
- Blood Pressure Check
- EKG
- Paramedic Field Assessment
Heart care
- Cardioversion for rapid heartbeat
- Emergency Rapid Heart Rate Medication
- External Cardiac Pacing
Life Support
- AED Shock or Defibrillation
- Bone Injection for Fluids
- CPR and defibrillation
- Mechanical CPR Machine
Medical Transport
- Non-Emergency Stretcher Transport
Mental Health
- Psychiatric Emergency Transport
Rescue services
- Vehicle Crash Extrication
Trauma & injury
- Emergency Burn Dressing Application
Trauma Care
- Bleeding Control and Tourniquet
- Emergency Eye Flushing
- Neck and Spine Immobilization
- Pelvic Binder Placement
- Splinting Broken Bones
- Wound care and dressing
Procedures Most Often Billed to Medicare
183 services · 176 patients · 5 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only | Treatment | 93010 |
13 | Less often than most peers in Emergency Medical Services |
| Emergency department visit with moderate level of medical decision making | Office visit | 99284 |
76 | As often as other peers in Emergency Medical Services |
| Emergency department visit with high level of medical decision making | Office visit | 99285 |
39 | Less often than most peers in Emergency Medical Services |
| Emergency department visit with low level of medical decision making | Office visit | 99283 |
31 | More often than most peers in Emergency Medical Services |
| Emergency department visit with straightforward medical decision making | Office visit | 99282 |
24 | More often than most peers in Emergency Medical Services |
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.
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.
Trained at Louisiana State University School of Medicine in Shreveport 1
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 1986 at Louisiana State University School of Medicine in Shreveport 8
Providers who graduated from the same medical school in the same year.
Also performs Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only 8
Providers in LA who bill this service to Medicare most often.
Common questions
What is Dr. St. Cyr's specialty?
Dr. St. Cyr is an emergency medical services in Lafayette, LA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Dr. St. Cyr?
Dr. St. Cyr is listed at 2100 Jefferson St, Lafayette, LA 70501. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. St. Cyr?
The number on file is (337) 261-0734. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. St. Cyr?
Dr. St. Cyr's National Provider Identifier is 1184678997. 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
What is Dr. St. Cyr's medical education?
Dr. St. Cyr attended Louisiana State University School of Medicine in Shreveport, graduating in 1986. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. St. Cyr have?
Dr. St. Cyr has 40 years experience. Calculated from a graduation year of 1986, reported in the CMS National Downloadable File.
CMS public data
What is Dr. St. Cyr known for?
According to Medicare billing data, Dr. St. Cyr provides treatments such as routine electrocardiogram using at least 12 leads with interpretation and report only, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. St. Cyr's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. St. Cyr. 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.