Dr. William L. Diehl, M.D.
Surgical Oncology (Surgical Oncology Physician)
75 E Northfield Rd
Livingston, NJ 07039
Who else practices at this address →
Essex County includes primary care (34% of residents) and mental health (11% of residents) shortage areas. About shortage areas
- Medicare participating
At a glance
- Years since graduation
- 45
- In the NPI registry since
- 2005
- Medicare patients seen, 2024
- 322
The NPI date is when this clinician registered for a National Provider Identifier, the billing number used on health claims. It is not a license, graduation or board-certification date. NPIs were first issued in May 2005 and became required on claims in 2007–2008, so an early date usually means the clinician was already in practice before then. What an NPI is
Education and training
- 2005Registered with an NPI (national billing number; not a license date) — NPIs began in 2005, so practice likely started earlier
Medicare’s Care Compare data doesn’t list this clinician’s medical school. Undergraduate school, residency, fellowship, licensing exams and board certification aren’t in public federal data. Board certification can be confirmed with the certifying board (ABMS member boards for MDs, AOA boards for DOs).
Specialties and state licenses
-
Surgical Oncology Physician primary
NJ license 25MA04355800 -
Surgery Physician
NJ license 25MA04355800
As reported to the NPI registry. To confirm a license is current, check the state medical board.
Where they work
Hospitals
- Morristown Medical Center Morristown, NJ
- Ahs Hospital Corp Hackettstown, NJ
Medical groups
- Summit Medical Group PA (1,212 clinicians)
Hospitals this clinician lists with Medicare, and groups they bill Medicare through (Care Compare). Affiliation doesn’t mean they see patients at every location.
Medicare patients and services
- Medicare patients, 2024
- 322
- Services billed
- 588
- Patients’ average age
- 74
| Service | Times | Patients |
|---|---|---|
| Established patient office or other outpatient visit, 30-39 minutes | 169 | 161 |
| Established patient office or other outpatient visit, 20-29 minutes | 62 | 59 |
| New patient office or other outpatient visit, 45-59 minutes | 60 | 60 |
| Biopsy of breast and placement of locating device using ultrasound, first growth | 49 | 48 |
| New patient office or other outpatient visit, 60-74 minutes | 42 | 42 |
| Partial removal of breast | 30 | 27 |
| Insertion of needle into vein for collection of blood sample | 28 | 27 |
| Blood test, comprehensive group of blood chemicals | 23 | 22 |
| Complete blood cell count (red cells, white blood cell, platelets), automated test and automated differential white blood cell count | 21 | 20 |
| New patient office or other outpatient visit, 30-44 minutes | 19 | 19 |
Medicare fee-for-service only. CMS leaves out services billed for fewer than 11 patients. These figures describe a practice’s Medicare work; they aren’t a measure of quality.
Medicare prescriptions
| Drug | Prescriptions |
|---|---|
| Oxycodone-Acetaminophen (oxycodone hcl/acetaminophen) Other prescribers in Livingston, NJ | 27 |
Prescriptions filled under Medicare Part D, including refills. CMS leaves out drugs prescribed fewer than 11 times.