Physician Profile
Unclaimed ProfileAbout DIEHL
William L Diehl, M.D. is a healthcare provider in Livingston, NJ specialising in general surgery. William is also listed as specialising in surgery of the hand and surgery.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Common questions
What is Dr. Diehl's specialty?
Dr. Diehl is a general surgeon in Livingston, NJ. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “GENERAL SURGERY”.
NPI registry
Where can I find Dr. Diehl?
Dr. 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 Dr. Diehl?
The number on file is (973) 436-1530. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Diehl?
Dr. 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 Dr. Diehl's medical education?
Dr. Diehl attended Other, graduating in 1981. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Diehl have?
Dr. Diehl has 45 years experience. Calculated from a graduation year of 1981, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Diehl known for?
According to Medicare billing data, Dr. 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 Dr. Diehl's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Diehl. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (973) 436-1530
- Email not available
Practice Locations
75 E NORTHFIELD RD
Livingston, NJ 07039
Procedures Most Often Billed to Medicare
480 services · 463 patients · 10 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Partial removal of breast | Procedure | 19301 |
36 |
| Biopsy of breast and placement of locating device using ultrasound, first growth | Procedure | 19083 |
34 |
| Biopsy of breast and placement of locating device using x-ray with needle, first growth | Procedure | 19081 |
27 |
| Biopsy or removal of deep lymph nodes of underarm | Procedure | 38525 |
18 |
| Imaging of lymph nodes during surgery | Procedure | 38900 |
11 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
158 |
| 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 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
60 |
| 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 |
| 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 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
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Claim this profileRelated 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.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.