Doctor profile · Federal record
Dr. William Kessler, MD
Medical Oncology Physician · Elizabeth, NJ
- NPI 1083710842
- 20 yrs on file
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
225 Williamson St
Elizabeth, NJ 072023625
(908) 355-9177
fax (908) 355-9583
Credentials & registration
- NPI registered
- September 2006 — 20 yrs on file
- Profile last updated
- March 26, 2013
- Specialty taxonomy
- 207RX0202X — NUCC code
- State license (1)
- New Jersey #MA033567
- Medicaid
- NJ #0563706
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1083710842. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
83
Distinct HCPCS
4
Medicare allowed
$8,014
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99231 |
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | 40 | 20 | $53 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 15 | 14 | $140 | |
99223 |
Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | 14 | 14 | $186 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 14 | 13 | $85 |
In context: peer comparison
Among 1 peers in this city , average services per provider: 20. This provider delivers 4.2× the peer median.Open Payments
Industry payments received
All-time total
$471
Transactions
26
Manufacturers
12
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| AstraZeneca Pharmaceuticals LP | 5 | $88.46 | |
| GENZYME CORPORATION | 3 | $63.28 | |
| Bayer Healthcare Pharmaceuticals Inc. | 3 | $62.00 | |
| Lilly USA, LLC | 3 | $56.62 | |
| Daiichi Sankyo Inc. | 3 | $52.01 | |
| Takeda Pharmaceuticals U.S.A., Inc. | 2 | $32.74 | |
| Regeneron Healthcare Solutions, Inc. | 2 | $30.75 | |
| ABBVIE INC. | 1 | $17.95 | |
| Exelixis Inc. | 1 | $17.12 | |
| TAIHO ONCOLOGY, INC. | 1 | $17.00 | |
| Eisai Inc. | 1 | $16.76 | |
| Incyte Corporation | 1 | $16.32 |
By nature of payment
Frequently asked questions
What is Dr. William Kessler's medical specialty?
Dr. William Kessler practices Medical Oncology Physician in Elizabeth, NJ.
Where does Dr. William Kessler practice?
Dr. William Kessler practices at 225 Williamson St, Elizabeth, NJ 072023625. Office phone: 9083559177.
What is Dr. William Kessler's NPI?
Dr. William Kessler's National Provider Identifier (NPI) is 1083710842, issued by NPPES.
What procedures does Dr. William Kessler commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with straightforward or low level of medical decision making (HCPCS 99231); Initial hospital care with straightforward or low-level medical decision making (HCPCS 99222); Initial hospital care with moderate level of medical decision making (HCPCS 99223). Source: CMS Medicare Physician & Other Practitioners file.