Physician Profile
Gerald A. Isenberg, M.D.
Unclaimed ProfileAbout Dr. Isenberg
Gerald A. Isenberg, M.D. is a healthcare provider in Paoli, PA specializing in colon & rectal surgery. Gerald trained at Icahn School of Medicine at Mount Sinai, graduating in 1982. Gerald is also listed as specializing in surgery. According to Medicare claims data, Gerald cared for 367 Medicare patients across 428 services. The services billed most often include injection of hemorrhoid, injection of hemorrhoid, and diagnostic exam of anus using an endoscope.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
Education & Training
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
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
- (610) 647-3077
- Email not available
Practice Locations
255 W LANCASTER AVE STE 332
Paoli, PA 19301
1100 Walnut St Suite 702
Philadelphia, PA 19107
Procedures Most Often Billed to Medicare
428 services · 367 patients · 14 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Injection of hemorrhoid | Procedure | 46500 |
80 | More often than most peers in Colon & Rectal Surgery |
| Injection of hemorrhoid | Procedure | 46500 |
55 | More often than most peers in Colon & Rectal Surgery |
| Diagnostic exam of anus using an endoscope | Procedure | 46600 |
39 | 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 |
31 | More often than most peers in Colon & Rectal Surgery |
| Diagnostic exam of anus using an endoscope | Procedure | 46600 |
28 | More often than most peers in Colon & Rectal Surgery |
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
17 | As often as other 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 |
37 | More often than most peers in Colon & Rectal Surgery |
| Colorectal cancer screening; colonoscopy on individual at high risk | Billing code | G0105 |
32 | More often than most peers in Colon & Rectal Surgery |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
21 | As often as other 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 |
21 | More often than most 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.
Related specialists at this location 8
Clinically related specialties at the same address — the people this provider most likely works alongside.
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.
Trained at Icahn School of Medicine at Mount Sinai 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 1982 at Icahn School of Medicine at Mount Sinai 8
Providers who graduated from the same medical school in the same year.
Also performs Injection of hemorrhoid 8
Providers in PA who bill this service to Medicare most often.
Common questions
What does Gerald A. Isenberg specialize in?
Gerald A. Isenberg is a colorectal surgeon in Paoli, PA. That is the designation recorded for this NPI in the federal registry, where it is listed as “Colon & Rectal Surgery”.
NPI registry
Where is Gerald A. Isenberg located?
Gerald A. Isenberg is listed at 255 W Lancaster Ave Ste 332, Paoli, PA 19301. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Gerald A. Isenberg's phone number?
The number on file is (610) 647-3077. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Gerald A. Isenberg's NPI number?
Gerald A. Isenberg's National Provider Identifier is 1821018532. 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 Gerald A. Isenberg train?
Gerald A. Isenberg attended Icahn School of Medicine at Mount Sinai, graduating in 1982. This comes from the CMS National Downloadable File.
CMS public data
How long has Gerald A. Isenberg been practicing?
Gerald A. Isenberg has 44 years experience. Calculated from a graduation year of 1982, reported in the CMS National Downloadable File.
CMS public data
What does Gerald A. Isenberg do most often?
According to Medicare billing data, Gerald A. Isenberg performs procedures including injection of hemorrhoid, 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
Has Gerald A. Isenberg confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Gerald A. Isenberg. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.