Physician Profile
Unclaimed ProfileAbout WILLIS
Stephen Willis, MD practices gastroenterology in Phillipsburg, NJ. Stephen is a 1998 graduate of Rutgers R W Johnson Medical School (Cam/New Bruns/Pisc). According to Medicare claims data, Stephen cared for 1,238 Medicare patients across 1,315 services.
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
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (484) 526-6545
- Email not available
Practice Locations
755 MEMORIAL PKWY BLDG 100
Phillipsburg, NJ 08865
Procedures Most Often Billed to Medicare
1,315 services · 1,238 patients · 18 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
195 |
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
156 |
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Procedure | 45385 |
99 |
| Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43235 |
34 |
| Diagnostic exam of large bowel using a flexible endoscope | Procedure | 45378 |
31 |
| Removal of polyps or growths of esophagus, stomach, and/or upper small bowel using an endoscope with mechanical snare | Procedure | 43251 |
30 |
| Balloon dilation of esophagus, stomach, and/or upper small bowel using a flexible endoscope, less than 3.0 cm | Procedure | 43249 |
27 |
| Injection beneath lining of large bowel using a flexible endoscope | Procedure | 45381 |
18 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
184 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
117 |
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 1
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.
Other gastroenterology specialists in Phillipsburg 2
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Rutgers R W Johnson Medical School (Cam/New Bruns/Pisc) 8
Other providers in the same specialty who trained at the same institution.
Class of 1998 at Rutgers R W Johnson Medical School (Cam/New Bruns/Pisc) 8
Providers who graduated from the same medical school in the same year.
Also performs Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 8
Providers in NJ who bill this service to Medicare most often.
Common questions
What kind of doctor is Dr. Willis?
Dr. Willis is a gastroenterology in Phillipsburg, NJ. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “GASTROENTEROLOGY”.
NPI registry
What is Dr. Willis's address?
Dr. Willis is listed at 755 MEMORIAL PKWY BLDG 100, Phillipsburg, NJ 08865. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with Dr. Willis?
The number on file is (484) 526-6545. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Willis's NPI number?
Dr. Willis's National Provider Identifier is 1629139076. 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 Dr. Willis train?
Dr. Willis attended Rutgers R W Johnson Medical School (Cam/New Bruns/Pisc), graduating in 1998. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Willis been practicing?
Dr. Willis has 28 years experience. Calculated from a graduation year of 1998, reported in the CMS National Downloadable File.
CMS public data
What procedures does Dr. Willis perform?
According to Medicare billing data, Dr. Willis performs procedures including biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope, biopsy of large bowel using a flexible 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 Dr. Willis confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Willis. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.