Physician Profile
Les H. Chuang, M.D. is a healthcare provider in New York, NY specializing in internal medicine. Les trained at New York University Medical College - Nlg, graduating in 2003. Medicare claims data shows Les provided 309 services to 169 patients. The services billed most often include insertion of needle into vein for collection of blood sample, blood test, basic group of blood chemicals (calcium, total), and blood test, lipids (cholesterol and triglycerides).
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.
227 MADISON ST
New York, NY 10002
Within Internal 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.
Most searched conditions
Cardiometabolic
Digestive and liver
Endocrine, blood, and bone
Infectious disease
Kidney and urinary
Respiratory
Blood & Circulation
Blood disorders
Brain & Nerves
Brain and nerves
Cardiac and vascular
Digestive
Heart & Circulation
Infections
Kidney & Bladder
Lungs & Breathing
Mental Health
Neurologic and behavioral
Pain
Rheumatologic and pain
Most searched procedures
Preventive and evaluation
Screening and diagnostic testing
Bones & Joints
Brain and nerves
Cancer screening
Digestive
Exams & Consultations
Heart & Circulation
Heart health
Imaging referral
Immunizations
Lab tests
Lungs & Breathing
Metabolic & Weight
Minor procedures
Office procedures
Office Procedures
Pain management
Preventive & Routine Care
Screenings & Diagnostics
Sexual health
309 services · 169 patients · 7 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
62 | Less often than most peers in Internal Medicine |
| Blood test, basic group of blood chemicals (calcium, total) | Lab test | 80048 |
58 | As often as other peers in Internal Medicine |
| Blood test, lipids (cholesterol and triglycerides) | Lab test | 80061 |
48 | Less often than most peers in Internal Medicine |
| Hemoglobin a1c level | Lab test | 83036 |
44 | As often as other peers in Internal Medicine |
| Urine microalbumin (protein) level | Lab test | 82043 |
33 | As often as other peers in Internal Medicine |
| Liver function blood test panel | Lab test | 80076 |
33 | Less often than most peers in Internal Medicine |
| Complete blood cell count (red cells, white blood cell, platelets), automated test | Lab test | 85027 |
31 | Less often than most peers in Internal Medicine |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Les H. Chuang is an internist in New York, NY. That is the designation recorded for this NPI in the federal registry, where it is listed as “Internal Medicine”.
NPI registry
Les H. Chuang is listed at 227 Madison St, New York, NY 10002. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (212) 238-7614. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Les H. Chuang's National Provider Identifier is 1356355937. 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
Les H. Chuang attended New York University Medical College - Nlg, graduating in 2003. This comes from the CMS National Downloadable File.
CMS public data
Les H. Chuang has 23 years experience. Calculated from a graduation year of 2003, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Les H. Chuang performs procedures including insertion of needle into vein for collection of blood sample, 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 Les H. Chuang. 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.