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- 2801 L St, Sacramento, CA 95816
About Dr. Koo
Ralph Koo, MD practices emergency medical services in Sacramento, CA. Ralph is a 1993 graduate of University of South Carolina School of Medicine. According to Medicare claims data, Ralph cared for 546 Medicare patients across 602 services. The services billed most often include routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only, emergency department visit with high level of medical decision making, and critical care, first 30-74 minutes. The provider's National Provider Identifier (NPI) is 1205932050.
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
- (916) 454-2222
- Email not available
Practice Locations
2801 L ST
Sacramento, CA 95816
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
Airway & breathing
- Choking or swallowed object
- Coughing up blood
Allergies & Immune
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
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
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
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
602 services · 546 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 |
229 | More often than most peers in Emergency Medical Services |
| Emergency department visit with high level of medical decision making | Office visit | 99285 |
166 | More often than most peers in Emergency Medical Services |
| Critical care, first 30-74 minutes | Office visit | 99291 |
90 | More often than most peers in Emergency Medical Services |
| Emergency department visit with moderate level of medical decision making | Office visit | 99284 |
82 | More often than most peers in Emergency Medical Services |
| Critical care, each additional 30 minutes | Office visit | 99292 |
35 | Too few peers to compare |
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.
Other emergency medical serviceses in Sacramento 3
Same specialty, same city.
Trained at University of South Carolina School of Medicine 1
Other providers in the same specialty who trained at the same institution.
More connections — 15 related providers in 2 groups
Class of 1993 at University of South Carolina School of Medicine 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 7
Providers in CA who bill this service to Medicare most often.
Common questions
What is Dr. Koo's specialty?
Dr. Koo is an emergency medical services in Sacramento, CA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Dr. Koo?
Dr. Koo is listed at 2801 L St, Sacramento, CA 95816. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Koo?
The number on file is (916) 454-2222. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Koo's NPI number?
Dr. Koo's National Provider Identifier is 1205932050. 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. Koo's medical education?
Dr. Koo attended University of South Carolina School of Medicine, graduating in 1993. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Koo been practicing?
Dr. Koo has 33 years experience. Calculated from a graduation year of 1993, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Koo known for?
According to Medicare billing data, Dr. Koo 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
Has Dr. Koo confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Koo. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.