Physician Profile
Rachel Liu, M.D. is a healthcare provider in New Haven, CT specializing in emergency medicine. According to Medicare claims data, Rachel cared for 238 Medicare patients across 239 services. The services billed most often include emergency department visit with high level of medical decision making, critical care, first 30-74 minutes, and emergency department visit with moderate 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 — free, and no identity document with a practice or institutional email.
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.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
20 YORK ST YALE NEW HAVEN HOSPITAL ADULT ED
New Haven, CT 06510
Within Emergency Medicine generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Abdomen & Digestion
Allergy & Immune
Allergy & Immunology
Bites & Stings
Blood & Circulation
Brain & Nerves
Breathing
Digestion & Stomach
Ear, Nose & Throat
Endocrine & Metabolic
Environmental
Eye Care
Eye Emergency
General Emergency
Heart & Chest
Heart & Circulation
Heart & Lungs
Infections & Illness
Injuries & Trauma
Lungs & Breathing
Men's Health
Poisoning & Environmental
Poisoning & Toxins
Skin & Infections
Spine & Back
Urinary & Bladder
Urinary & Kidney
Women's Health
Abdominal Procedures
Airway & Breathing
Anesthesia & Sedation
Breathing & Airway
Critical Care
Diagnostics
Digestive Care
Ear, Nose & Throat
Eye & ENT
Eye Care
Heart & Diagnostics
Heart Care
Imaging & Diagnostics
Injections & Vaccines
Kidney Care
Lung & Respiratory
Medications
Mental Health
Minor Procedures
Minor Trauma
Orthopedic Procedures
Orthopedics
Poisoning & Toxicology
Specialized Care
Stroke & Vascular
Supportive Care
Toxicology
Women's Health
Wound Care
239 services · 238 patients · 4 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Ultrasound of heart, follow-up | Treatment | 93308 |
22 | More often than most peers in Emergency Medicine |
| Emergency department visit with high level of medical decision making | Office visit | 99285 |
104 | As often as other peers in Emergency Medicine |
| Critical care, first 30-74 minutes | Office visit | 99291 |
58 | More often than most peers in Emergency Medicine |
| Emergency department visit with moderate level of medical decision making | Office visit | 99284 |
55 | As often as other peers in Emergency Medicine |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Rachel Liu is an emergency physician in New Haven, CT. That is the designation recorded for this NPI in the federal registry, where it is listed as “Emergency Medicine”.
NPI registry
Rachel Liu is listed at 20 York St Yale New Haven Hospital Adult ED, New Haven, CT 06510. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (203) 785-4058. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Rachel Liu's National Provider Identifier is 1750675484. 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
Rachel Liu has 15+ years experience. Registered with an NPI since 2011. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
According to Medicare billing data, Rachel Liu provides treatments such as ultrasound of heart, follow-up, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Not yet. This profile is built from public federal data and has not been confirmed by Rachel Liu. 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.