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Edit this profileAt a glance
- 231 Millburn Ave, Millburn, NJ 07041
About Dr. Gilder
Mark E. Gilder, M.D. is a healthcare provider in Millburn, NJ specializing in colon & rectal surgery. Mark trained at New York Medical College, graduating in 1987. Mark is also listed as specializing in specialist. Medicare claims data shows Mark provided 520 services to 451 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, removal of external hemorrhoids by rubber banding, and diagnostic exam of anus using an endoscope. This provider record is associated with NPI 1356316525.
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) 467-2277
- Email not available
Practice Locations
231 MILLBURN AVE
Millburn, NJ 07041
Procedures Most Often Billed to Medicare
520 services · 451 patients · 13 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Removal of external hemorrhoids by rubber banding | Procedure | 46221 |
73 | More often than most peers in Colon & Rectal Surgery |
| Diagnostic exam of anus using an endoscope | Procedure | 46600 |
65 | More often than most peers in Colon & Rectal Surgery |
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Procedure | 45385 |
29 | As often as other peers in Colon & Rectal Surgery |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
90 | More than most peers in Colon & Rectal 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 |
58 | More often than most peers in Colon & Rectal 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 |
44 | More often than most peers in Colon & Rectal Surgery |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
35 | As often as other peers in Colon & Rectal Surgery |
| Established patient office or other outpatient visit with high level of medical decision making, if using time, 40 minutes or more | Office visit | 99215 |
31 | More often than most peers in Colon & Rectal Surgery |
| Colorectal cancer screening; colonoscopy on individual at high risk | Billing code | G0105 |
22 | As often as other peers in Colon & Rectal Surgery |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
21 | As often as other peers in Colon & Rectal 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 colorectal surgeons at this location 2
Same specialty, same street address — most likely the same department or group.
Also at this address 1
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Trained at New York Medical College 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 1987 at New York Medical College 8
Providers who graduated from the same medical school in the same year.
Also performs Removal of external hemorrhoids by rubber banding 8
Providers in NJ who bill this service to Medicare most often.
Common questions
What does Mark E. Gilder specialize in?
Mark E. Gilder is a colorectal surgeon in Millburn, NJ. That is the designation recorded for this NPI in the federal registry, where it is listed as “Colon & Rectal Surgery”.
NPI registry
Where is Mark E. Gilder located?
Mark E. Gilder is listed at 231 Millburn Ave, Millburn, NJ 07041. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Mark E. Gilder's phone number?
The number on file is (973) 467-2277. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Mark E. Gilder?
Mark E. Gilder's National Provider Identifier is 1356316525. 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
Where did Mark E. Gilder train?
Mark E. Gilder attended New York Medical College, graduating in 1987. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Mark E. Gilder have?
Mark E. Gilder has 39 years experience. Calculated from a graduation year of 1987, reported in the CMS National Downloadable File.
CMS public data
What does Mark E. Gilder do most often?
According to Medicare billing data, Mark E. Gilder performs procedures including removal of external hemorrhoids by rubber banding, diagnostic exam of anus using an endoscope and removal of polyps or growths of large bowel using an endoscope with mechanical snare, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Mark E. Gilder's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Mark E. Gilder. If this is you, claiming it is free.
Guide.md
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