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Edit this profileIn-Hei Hahn, MD practices emergency medicine in Stanford, CA. In-Hei is a 1995 graduate of University of Maryland School of Medicine. In-Hei is also listed as specializing in physician assistant. Medicare claims data shows In-Hei provided 149 services to 149 patients. 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. The provider's National Provider Identifier (NPI) is 1962575647.
Factual summary compiled by Guide.md from public records; not written by this provider.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
300 PASTEUR DR
Stanford, CA 94305
1000 Tenth Avenue, Rm GE-01 Roosevelt Hospital, Department of Emergency Medicine
New York, NY 10019
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.
Bites & Stings
Brain & Nerves
Endocrine & Metabolic
Eye Care
Injuries & Trauma
Rashes & allergy
Skin & Infections
Urinary & Bladder
Women's Health
Abdomen & Digestion
Allergy & Immune
Allergy & Immunology
Blood & Circulation
Breathing
Digestion & Stomach
Ear, Nose & Throat
Environmental
Eye Emergency
General Emergency
Heart & Chest
Heart & Circulation
Heart & Lungs
Infections & Illness
Lungs & Breathing
Men's Health
Poisoning & Environmental
Poisoning & Toxins
Spine & Back
Urinary & Kidney
Abdominal Procedures
Breathing & Airway
Critical Care
Diagnostic testing
Diagnostics
Ear, Nose & Throat
Eye & ENT
Heart & Diagnostics
Imaging & Diagnostics
Injections & Vaccines
Kidney Care
Lung & Respiratory
Medications
Mental Health
Minor Procedures
Minor Trauma
Orthopedics
Poisoning & Toxicology
Specialized Care
Stroke & Vascular
Toxicology
Women's Health
Wound Care
Airway & Breathing
Anesthesia & Sedation
Digestive Care
Eye Care
Heart Care
Orthopedic Procedures
Supportive Care
149 services · 149 patients · 3 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Emergency department visit with high level of medical decision making | Office visit | 99285 |
98 | As often as other peers in Emergency Medicine |
| Critical care, first 30-74 minutes | Office visit | 99291 |
27 | As often as other peers in Emergency Medicine |
| Emergency department visit with moderate level of medical decision making | Office visit | 99284 |
24 | Less often than most peers in Emergency Medicine |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Dr. Hahn is an emergency physician in Stanford, CA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Emergency Medicine”.
NPI registry
Dr. Hahn is listed at 300 Pasteur Dr, Stanford, CA 94305. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (650) 723-4000. Contact the office directly to confirm availability and scheduling.
NPI registry
Dr. Hahn's National Provider Identifier is 1962575647. 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
Dr. Hahn attended University of Maryland School of Medicine, graduating in 1995. This comes from the CMS National Downloadable File.
CMS public data
Dr. Hahn has 31 years experience. Calculated from a graduation year of 1995, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Dr. Hahn the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. 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 Dr. Hahn. If this is you, claiming it is free.
Guide.md
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