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- 225 Williamson St, Elizabeth, NJ 07202
About Dr. Kessler
Based in Elizabeth, NJ, William W. Kessler, MD is listed in the NPI registry under medical oncology. According to Medicare claims data, William cared for 44 Medicare patients across 78 services. The services billed most often include subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes, subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes, and initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes. NPI 1083710842 identifies this record in the national registry.
Factual summary compiled by Guide.md from public records; not written by this provider.
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
- (908) 355-9177
- Email not available
Practice Locations
225 WILLIAMSON ST
Elizabeth, NJ 07202
Conditions Commonly Evaluated or Treated
Within Medical 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
Abdominal cancer
- Peritoneal Cancer
Blood cancer
- Blood Cancer
Blood disorders
- Low Platelets
- Low White Blood Cell Count
- Multiple Myeloma
- Myelodysplastic Syndrome
- Thick Blood
Cancer complications
- High calcium from cancer
Chest cancer
- Thymus tumor
Complications
- Abdominal fluid swelling from cancer
- Fluid around lungs from cancer
Digestive cancer
- Appendix cancer
- Gallbladder cancer
Digestive cancers
- Anal cancer
- Bile duct cancer
- Esophageal cancer
- Liver cancer
- Pancreatic cancer
- Stomach cancer
Endocrine cancer
- Adrenal Tumors in Children
Endocrine cancers
Eye cancer
- Melanoma of the eye
General oncology
- Cancer of unknown primary
Genetic risk
- Inherited Cancer Risk
Gynecologic cancer
- Vulvar cancer
Gynecologic cancers
Head and neck
- Laryngeal cancer
Head and neck cancer
- Head and neck cancer
- Oral cavity cancer
- Salivary Gland Cancer
Metastatic cancer
- Cancer Spread to the Lung
Metastatic disease
- Cancer spread to bones
- Cancer that spread to brain
- Cancer that spread to liver
Neurologic cancers
- Brain tumor
Sarcomas
- Bone tumors
- Soft-tissue sarcoma
Skin cancer
Symptom evaluation
- Cancer pain
- Cancer-related fatigue
- Swollen Lymph Nodes
Thoracic cancers
- Mesothelioma
Treatment side effects
- Chemo Rash
- Mouth Sores From Chemo
- Nerve Pain From Chemo
Urologic cancer
- Penile Cancer
Urologic cancers
- Bladder cancer
- Kidney cancer
- Testicular cancer
Procedures & services
Most searched procedures
- Blood transfusion
- Chemotherapy
- Immunotherapy
- Targeted therapy
Cancer treatment care
- Immunotherapy Side Effect Management
- Maintenance Cancer Therapy
Complication management
- Cancer Blood Clot Treatment
Consultations
- Cancer survivorship care
- Integrative oncology consultation
- Post-cancer surveillance scan review
- Pre-Surgery Chemotherapy Consultation
- Preventative Chemotherapy Consultation
- Radiopharmaceutical therapy consultation
- Second Opinion For Cancer
- Stem cell transplant consultation
- Tumor Board Case Review
Diagnostic testing
- Liquid Biopsy
Diagnostics
- Bone Marrow Biopsy
- Cancer Genetic Testing
- Pathology second opinion for cancer
- Tumor Biomarker Testing
Infusions
- Bone Strengthening Infusion
- Iron Infusion
- IV hydration for cancer patients
- Neurologic infusion treatment
Injections
- Red Blood Cell Booster Shot
- White Blood Cell Booster Injection
Medication management
- Oral cancer medication monitoring
Patient education
- Chemo Teaching And Education
Port and line care
- Central line placement in child
- Chemo port removal
- PICC line care and removal
Procedures
Specialized treatments
- Bladder instillation therapy
- Heated Chemotherapy Consultation
- Hepatic Artery Pump Chemotherapy Consultation
Specialty treatments
- Bone Strengthening Injections For Cancer
- CAR-T Therapy
- Chemo allergy desensitization
- Clinical Trial Screening
- Hormone Therapy For Cancer
- Spinal chemo injection
Supportive care
- Advance Care Planning For Cancer
- Cancer nutrition counseling
- Cancer pain management
- Cancer Rehabilitation Evaluation
- Cancer weight loss management
- Chemo brain treatment
- Chemo nausea treatment
- Cold cap therapy for hair loss
- Fertility Preservation for Teens Before Cancer Treatment
- Hospice care consultation
- Lymphedema evaluation
- Palliative cancer care
Treatment side effects
- Chemo Rash Treatment
Vascular access
- Chemo port flush and care
- Chemo port placement
- PICC line care and flush
Procedures Most Often Billed to Medicare
78 services · 44 patients · 3 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | Office visit | 99231 |
43 | More often than most peers in Medical Oncology |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
23 | Less often than most peers in Medical Oncology |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
12 | Less often than most peers in Medical 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.
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.
Common questions
What does Dr. Kessler specialize in?
Dr. Kessler is an oncologist in Elizabeth, NJ. That is the designation recorded for this NPI in the federal registry, where it is listed as “Medical Oncology”.
NPI registry
Where is Dr. Kessler located?
Dr. Kessler is listed at 225 Williamson St, Elizabeth, NJ 07202. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Kessler's phone number?
The number on file is (908) 355-9177. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Dr. Kessler's NPI number?
Dr. Kessler's National Provider Identifier is 1083710842. 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
How long has Dr. Kessler been practicing?
Dr. Kessler has 20+ years experience. Registered with an NPI since 2006. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
What does Dr. Kessler do most often?
According to Medicare billing data, Dr. Kessler 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
Has Dr. Kessler confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Kessler. If this is you, claiming it is free.
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