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Edit this profileAt a glance
- 3400 Olentangy River Rd, Columbus, OH 43202
About Dr. Castor
John M. Castor, MD is a healthcare provider in Columbus, OH specializing in gastroenterology. John trained at Clvlnd Clinic Lerner College of Med of Case Wstn RSV University, graduating in 2005. Medicare claims data shows John provided 537 services to 510 patients. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, removal of polyps or growths of large bowel using an endoscope with mechanical snare, and biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope. This provider record is associated with NPI 1093987257.
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
- (614) 754-5500
- Email not available
Practice Locations
3400 OLENTANGY RIVER RD
Columbus, OH 43202
Conditions Commonly Evaluated or Treated
Within Gastroenterology generally. Availability varies by clinician, training and location — this profile has not been claimed, so nothing here is a personal claim by the provider.
Conditions
Most searched conditions
- Acid reflux
- Celiac disease
- Crohn's disease
- Hemorrhoids
- IBS
- Swallowing difficulties
- Ulcerative colitis
Biliary and pancreas
Colon and anorectal
Esophagus and swallowing
Functional bowel and motility
Liver
- Ascites
- Autoimmune hepatitis
- Cirrhosis
- Fatty liver disease
- Hemochromatosis
- Hepatitis B
- Hepatitis C
- Portal hypertension
Stomach and duodenum
Bowel & Colon
Digestive Symptoms
Gallbladder & Bile Ducts
Procedures & services
Most searched procedures
Lower endoscopy
Upper endoscopy
Capsule and physiology testing
Diagnostic Testing
Liver procedures
Treatments
Procedures Most Often Billed to Medicare
537 services · 510 patients · 13 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Procedure | 45385 |
108 | More often than most peers in Gastroenterology |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
62 | As often as other peers in Gastroenterology |
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
44 | As often as other peers in Gastroenterology |
| Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43235 |
16 | As often as other peers in Gastroenterology |
| Balloon dilation of esophagus, stomach, and/or upper small bowel using a flexible endoscope, less than 3.0 cm | Procedure | 43249 |
11 | Less often than most peers in Gastroenterology |
| Monitoring and recording of esophageal function through nasal tube with electrode | Treatment | 91037 |
15 | Less often than most peers in Gastroenterology |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
118 | More often than most peers in Gastroenterology |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
54 | As often as other peers in Gastroenterology |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
33 | As often as other peers in Gastroenterology |
| Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monit | Billing code | G0500 |
23 | Less often than most peers in Gastroenterology |
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 gastroenterologists at this location 8
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 gastroenterologists in Columbus 4
Same specialty, same city.
More connections — 24 related providers in 3 groups
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.
Class of 2005 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 Removal of polyps or growths of large bowel using an endoscope with mechanical snare 8
Providers in OH who bill this service to Medicare most often.
Common questions
What is Dr. Castor's specialty?
Dr. Castor is a gastroenterologist in Columbus, OH. That is the designation recorded for this NPI in the federal registry, where it is listed as “Gastroenterology”.
NPI registry
Where can I find Dr. Castor?
Dr. Castor is listed at 3400 Olentangy River Rd, Columbus, OH 43202. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Dr. Castor?
The number on file is (614) 754-5500. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Dr. Castor?
Dr. Castor's National Provider Identifier is 1093987257. 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. Castor's medical education?
Dr. Castor attended Clvlnd Clinic Lerner College of Med of Case Wstn RSV University, graduating in 2005. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Castor have?
Dr. Castor has 21 years experience. Calculated from a graduation year of 2005, reported in the CMS National Downloadable File.
CMS public data
What is Dr. Castor known for?
According to Medicare billing data, Dr. Castor performs procedures including removal of polyps or growths of large bowel using an endoscope with mechanical snare, biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope and biopsy of large bowel using a flexible endoscope; provides treatments such as monitoring and recording of esophageal function through nasal tube with electrode, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Castor's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Castor. If this is you, claiming it is free.
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