Physician Profile
Unclaimed ProfileAbout GREAVES
Based in Hillsborough, NJ, Mark Greaves, M.D. is listed in the NPI registry under gastroenterology. Mark graduated from Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University in 2002. According to Medicare claims data, Mark cared for 1,299 Medicare patients across 13,411 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
Common questions
What is Dr. Greaves's specialty?
Dr. Greaves is a gastroenterology in Hillsborough, NJ. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “GASTROENTEROLOGY”.
NPI registry
Where can I find Dr. Greaves?
Dr. Greaves is listed at 511 COURTYARD DR BLDG 500, Hillsborough, NJ 08844. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Greaves?
The number on file is (908) 218-9222. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Greaves's NPI number?
Dr. Greaves's National Provider Identifier is 1518139914. 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. Greaves's medical education?
Dr. Greaves attended Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University, graduating in 2002. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Greaves been practising?
Dr. Greaves has 24 years experience. Calculated from a graduation year of 2002, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Greaves known for?
According to Medicare billing data, Dr. Greaves 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; reads or performs imaging such as complete ultrasound scan of abdomen; provides treatments such as administration of chemotherapy into vein, 1 hour or less and administration of chemotherapy into vein, each additional hour, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Greaves confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Greaves. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (908) 218-9222
- Email not available
Practice Locations
511 COURTYARD DR BLDG 500
Hillsborough, NJ 08844
Procedures Most Often Billed to Medicare
13,411 services · 1,299 patients · 22 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
115 |
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
104 |
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Procedure | 45385 |
58 |
| Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43235 |
19 |
| Diagnostic exam of large bowel using a flexible endoscope | Procedure | 45378 |
16 |
| Ultrasound exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43259 |
11 |
| Complete ultrasound scan of abdomen | Imaging | 76700 |
11 |
| Administration of chemotherapy into vein, 1 hour or less | Treatment | 96413 |
62 |
| Administration of chemotherapy into vein, each additional hour | Treatment | 96415 |
23 |
| Measurement of hydrogen in breath to test for stomach and bowel symptoms | Treatment | 91065 |
23 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Is this your profile?
Verify your identity to control how patients — and AI assistants — describe you.
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 gastroenterology specialists at this location 7
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.
Trained at Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 2002 at Clvlnd Clinic Lerner College of Med of Case Wstn Rsv University 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.
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.