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Edit this profileAt a glance
- 75 E Northfield Rd, Livingston, NJ 07039
About Dr. Diehl
William L. Diehl, M.D. is a healthcare provider in Livingston, NJ specializing in general surgery. William is also listed as specializing in surgery of the hand and surgery. Medicare claims data shows William provided 480 services to 463 patients. The services billed most often include established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more, new patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more, and established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more. This provider record is associated with NPI 1629068457.
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
- (973) 436-1530
- Email not available
Practice Locations
75 E NORTHFIELD RD
Livingston, NJ 07039
Conditions Commonly Evaluated or Treated
Within General Surgery 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
Anorectal
Appendix, bowel, and emergency
Gallbladder and biliary
Hernia and abdominal wall
Skin and soft tissue
Abdominal
Abdominal wall
Breast
Colorectal
Digestive
- Acid reflux
- Acute pancreatitis
- Bleeding Stomach Ulcer
- Bowel Fistula
- Gastroparesis
- Swallowing difficulties
Emergency surgery
Endocrine
Gastrointestinal
Hernia
Infections
Lymphatic
Oncology
Procedures & services
Most searched procedures
Bowel and emergency abdominal
- Colon resection
- Exploratory laparoscopy
- Exploratory laparotomy
- Repair of perforated peptic ulcer
- Small-bowel resection
- Surgery for bowel obstruction
- Surgical drainage of abdominal abscess
- Surgical lysis of adhesions
Gallbladder and appendix
Hernia repair
Skin and soft tissue
Abdominal surgery
Abdominal wall
Access and nutrition
Anorectal
- Anal fistula surgery
- Drainage of anal abscess
- Hemorrhoid removal
- Rubber-band ligation of hemorrhoids
- Surgery for chronic anal fissure
Biopsy
Breast surgery
- Axillary lymph-node dissection
- Excisional biopsy of a breast mass
- Mastectomy
- Sentinel lymph-node biopsy
Breast Surgery
Colorectal
Colorectal surgery
Digestive procedures
Endocrine surgery
Gastrointestinal
Hernia surgery
Skin & Soft Tissue
Surgical Oncology
Surgical procedures
Vascular Access
Wound care
Procedures Most Often Billed to Medicare
480 services · 463 patients · 10 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Partial removal of breast | Procedure | 19301 |
36 | More often than most peers in General Surgery |
| Biopsy of breast and placement of locating device using ultrasound, first growth | Procedure | 19083 |
34 | More often than most peers in General Surgery |
| Biopsy of breast and placement of locating device using x-ray with needle, first growth | Procedure | 19081 |
27 | Too few peers to compare |
| Biopsy or removal of deep lymph nodes of underarm | Procedure | 38525 |
18 | As often as other peers in General Surgery |
| Imaging of lymph nodes during surgery | Procedure | 38900 |
11 | Less often than most peers in General Surgery |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
158 | More than most peers in General Surgery |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
97 | More than most peers in General Surgery |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
60 | As often as other peers in General Surgery |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
20 | As often as other peers in General Surgery |
| New patient office or other outpatient visit with a high level of medical decision making, if using time, 60 minutes or more | Office visit | 99205 |
19 | Less often than most peers in General Surgery |
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 general surgeons at this location 1
Same specialty, same street address — most likely the same department or group.
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.
Other general surgeons in Livingston 7
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1981 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Partial removal of breast 8
Providers in NJ who bill this service to Medicare most often.
Common questions
What is William L. Diehl's specialty?
William L. Diehl is a general surgeon in Livingston, NJ. That is the designation recorded for this NPI in the federal registry, where it is listed as “General Surgery”.
NPI registry
Where can I find William L. Diehl?
William L. Diehl is listed at 75 E Northfield Rd, Livingston, NJ 07039. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact William L. Diehl?
The number on file is (973) 436-1530. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for William L. Diehl?
William L. Diehl's National Provider Identifier is 1629068457. 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 William L. Diehl's education?
William L. Diehl attended Other, graduating in 1981. This comes from the CMS National Downloadable File.
CMS public data
How much experience does William L. Diehl have?
William L. Diehl has 45 years experience. Calculated from a graduation year of 1981, reported in the CMS National Downloadable File.
CMS public data
What is William L. Diehl known for?
According to Medicare billing data, William L. Diehl performs procedures including partial removal of breast, biopsy of breast and placement of locating device using ultrasound, first growth and biopsy of breast and placement of locating device using x-ray with needle, first growth, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is William L. Diehl's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by William L. Diehl. If this is you, claiming it is free.
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