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Edit this profileAt a glance
- 750 Old Country Road Building 2, Riverhead, NY 11901
About Dr. Chen
Based in Riverhead, NY, Roy HO HSIN Chen, MD is listed in the NPI registry under hematology/oncology. Roy graduated from State University of Ny Upstate Medical University in 2008. Roy is also listed as specializing in hematology & oncology. Medicare claims data shows Roy provided 204,263 services to 18,197 patients. The services billed most often include injection, ferric carboxymaltose, 1 mg, injection, darbepoetin alfa, 1 microgram (non-esrd use), and injection, pembrolizumab, 1 mg. NPI 1720248081 identifies this record in the national registry.
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
- (631) 751-3000
- Email not available
Practice Locations
750 OLD COUNTRY ROAD BUILDING 2
Riverhead, NY 11901
Conditions Commonly Evaluated or Treated
Within Hematology and Oncology 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
Most searched conditions
- Anemia
- Blood clots
- Breast cancer
- Colon cancer
- Iron-deficiency anemia
- Leukemia
- Lung cancer
- Lymphoma
- Prostate cancer
Advanced Cancers
- Cancer That Has Spread
Blood & Lymph Disorders
Blood Cancers
- Multiple Myeloma
- Myelodysplastic Syndrome
Blood Disorders
- Bleeding Disorders
- Blood Clot in Lung
- Blood Clotting Gene Mutation
- Deep vein thrombosis
- Hemochromatosis
- High Platelet Count
- High White Blood Cell Count
- Low Platelets
- Low White Blood Cell Count
- Thick Blood
- Unexplained Bruising
Blood disorders
- Bone Marrow Scarring
- Hemolytic Anemia in Children
- Pre-Myeloma Protein In Blood
- Vitamin B12 deficiency anemia
Bone & Soft Tissue Cancers
Digestive Cancers
Endocrine Cancers
Endocrine tumors
Gastrointestinal cancer
- Anal cancer
- Appendix cancer
- Bile duct cancer
- Gallbladder cancer
General oncology
- Cancer of unknown primary
Genetic Blood Disorders
- Sickle cell disease
- Thalassemia
Gynecologic cancer
Gynecologic Cancers
Head & Neck Cancers
- Oral cancer
Head and neck cancer
Neurologic Cancers
Oncologic emergencies
- High calcium from cancer
Ophthalmologic oncology
Skin cancer
Skin Cancers
Urologic Cancers
Procedures & services
Most searched procedures
- Blood transfusion
- Chemotherapy
- Immunotherapy
- Targeted therapy
Biopsies & Diagnostics
- Bone Marrow Biopsy
- Lumbar puncture
- Lymph Node Biopsy
Blood disorder care
- Blood Exchange Transfusion
- Photopheresis
Cancer Therapies
- Hormone Therapy For Cancer
Cancer therapy
- Chemo allergy desensitization
- Oral chemotherapy management
- Radiation oncology consultation
- Spinal chemo injection
Cellular Therapies
- CAR-T Therapy
- Stem Cell Transplant
Consultations
- Cancer Survivorship Care Plan
- Clinical Trial Screening
- Second Opinion For Cancer
Diagnostic testing
- Circulating tumor cell test
Hematology Treatments
- Blood Clot Management
- Plasmapheresis
- PRP Injection
- Therapeutic Blood Draw
Imaging
Infusions
- Clotting Factor Replacement
- Iron Infusion
- IV fluids
- IVIG Infusion
Interventional oncology
- Radiofrequency ablation
- TACE Chemoembolization
Supportive Cancer Care
- Bone Strengthening Injections For Cancer
- Pain Management For Cancer
- Red Blood Cell Booster Shot
- White Blood Cell Booster Injection
Supportive cancer care
- Cancer nutrition counseling
- Chemo brain treatment
- Cold cap therapy for hair loss
- Fertility Preservation for Teens Before Cancer Treatment
- Hyperbaric oxygen for radiation damage
- Lymphedema Drainage Therapy
- Palliative cancer care
Surgical & Vascular Access
- Chemo port placement
- Chemo port removal
- Draining lung fluid
- Paracentesis
- PICC line placement coordination
Testing & Genetics
- Cancer Genetic Testing
- Cancer Tumor Profiling
- Liquid Biopsy
Vascular access care
- Chemo port check
- Chemo Port Flush And Maintenance
- PICC line dressing change
Procedures Most Often Billed to Medicare
204,263 services · 18,197 patients · 25 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
4,222 | More than most peers in Hematology/Oncology |
| Injection, ferric carboxymaltose, 1 mg | Drug given | J1439 |
102,000 | More than most peers in Hematology/Oncology |
| Injection, darbepoetin alfa, 1 microgram (non-esrd use) | Drug given | J0881 |
20,002 | More often than most peers in Hematology/Oncology |
| Injection, pembrolizumab, 1 mg | Drug given | J9271 |
12,200 | As often as other peers in Hematology/Oncology |
| Injection, iron sucrose, 1 mg | Drug given | J1756 |
11,800 | More often than most peers in Hematology/Oncology |
| Injection, denosumab, 1 mg | Drug given | J0897 |
8,040 | More often than most peers in Hematology/Oncology |
| Injection, paclitaxel, 1 mg | Drug given | J9267 |
5,278 | As often as other peers in Hematology/Oncology |
| Injection, dexamethasone sodium phosphate, 1 mg | Drug given | J1100 |
3,067 | More often than most peers in Hematology/Oncology |
| Injection, immune globulin, (octagam), intravenous, non-lyophilized (e.g., liquid), 500 mg | Drug given | J1568 |
1,451 | Less often than most peers in Hematology/Oncology |
| Injection, leucovorin calcium, per 50 mg | Drug given | J0640 |
688 | As often as other peers in Hematology/Oncology |
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.
Other hematology/oncology specialists at this location 1
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 1
Clinically related specialties at the same address — the people this provider most likely works alongside.
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.
More connections — 25 related providers in 4 groups
Other hematology/oncology specialists in Riverhead 1
Same specialty, same city.
Trained at State University of Ny Upstate Medical University 8
Other providers in the same specialty who trained at the same institution.
Class of 2008 at State University of Ny Upstate Medical University 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of needle into vein for collection of blood sample 8
Providers in NY who bill this service to Medicare most often.
Common questions
What is Dr. Chen's specialty?
Dr. Chen is a hematology/oncology in Riverhead, NY. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Dr. Chen?
Dr. Chen is listed at 750 Old Country Road Building 2, Riverhead, NY 11901. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Chen?
The number on file is (631) 751-3000. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Chen?
Dr. Chen's National Provider Identifier is 1720248081. 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. Chen's medical education?
Dr. Chen attended State University of Ny Upstate Medical University, graduating in 2008. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Chen have?
Dr. Chen has 18 years experience. Calculated from a graduation year of 2008, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Chen known for?
According to Medicare billing data, Dr. Chen 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
Is Dr. Chen's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Chen. If this is you, claiming it is free.
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