Physician Profile
Karleung Siu, M.D. is a healthcare provider in Teaneck, NJ specializing in hematology. Karleung trained at State University of New York Downstate Medical Center, graduating in 2005. Karleung is also listed as specializing in hospice & palliative medicine, hematology & oncology, and internal medicine. Medicare claims data shows Karleung provided 4,141 services to 1,865 patients. The services billed most often include established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more, insertion of needle into vein for collection of blood sample, and complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count.
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.
718 TEANECK RD REGIONAL CANCER CENTER
Teaneck, NJ 07666
Within Hematology 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
Anemia
Bleeding disorders
Blood and immune disorders
Blood cancer
Blood clots
Bone marrow disorders
Clotting disorders
Inherited blood disorders
Iron disorders
Lymph conditions
Lymph disorders
Metabolic blood disorders
Nutritional blood disorders
Organ conditions
Platelet disorders
Protein disorders
Red blood cell disorders
White blood cell disorders
Most searched procedures
Biopsy
Blood treatments
Catheter care
Cell therapy
Cellular therapy
Consultation
Consultations
Diagnostic tests
Infusions
Injections
Lab tests
Medication management
Monitoring
Patient education
Procedures
Transfusion therapy
Transplants
Treatments
4,141 services · 1,865 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
510 | More often than most peers in Hematology |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
600 | More than most peers in Hematology |
| Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | Lab test | 85025 |
486 | As often as other peers in Hematology |
| Blood test, comprehensive group of blood chemicals | Lab test | 80053 |
276 | As often as other peers in Hematology |
| Lactate dehydrogenase (enzyme) level | Lab test | 83615 |
261 | Too few peers to compare |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
259 | More often than most peers in Hematology |
| Liver function blood test panel | Lab test | 80076 |
163 | Too few peers to compare |
| Uric acid level, blood | Lab test | 84550 |
157 | Too few peers to compare |
| Magnesium level | Lab test | 83735 |
138 | Too few peers to compare |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | Office visit | 99233 |
133 | More often than most peers in Hematology |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Karleung Siu is a hematology in Teaneck, NJ. That is the designation recorded for this NPI in the federal registry.
NPI registry
Karleung Siu is listed at 718 Teaneck Rd Regional Cancer Center, Teaneck, NJ 07666. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (201) 227-6008. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Karleung Siu's National Provider Identifier is 1649417437. 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
Karleung Siu attended State University of New York Downstate Medical Center, graduating in 2005. This comes from the CMS National Downloadable File.
CMS public data
Karleung Siu has 21 years experience. Calculated from a graduation year of 2005, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Karleung Siu 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 Karleung Siu. 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.