Physician Profile
Unclaimed ProfileAbout LONG
John D Long, MD is a healthcare provider in Williamsburg, VA specialising in gastroenterology. John trained at Eastern Virginia Medical School, graduating in 1989.
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 does Dr. Long specialise in?
Dr. Long is a gastroenterology in Williamsburg, VA. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “GASTROENTEROLOGY”.
NPI registry
Where is Dr. Long located?
Dr. Long is listed at 457 MCLAWS CIR, Williamsburg, VA 23185. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Long's phone number?
The number on file is (757) 221-0750. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Dr. Long?
Dr. Long's National Provider Identifier is 1386619393. 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. Long go to medical school?
Dr. Long attended Eastern Virginia Medical School, graduating in 1989. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Dr. Long have?
Dr. Long has 37 years experience. Calculated from a graduation year of 1989, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Long do most often?
According to Medicare billing data, Dr. Long performs procedures including biopsy of large bowel using a flexible endoscope, removal of polyps or growths of large bowel using an endoscope with mechanical snare and diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Dr. Long's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Long. If this is you, claiming it is free.
Guide.md
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (757) 221-0750
- Email not available
Practice Locations
457 MCLAWS CIR
Williamsburg, VA 23185
Procedures Most Often Billed to Medicare
848 services · 832 patients · 12 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
197 |
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Procedure | 45385 |
101 |
| Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43235 |
92 |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
68 |
| Diagnostic exam of large bowel using a flexible endoscope | Procedure | 45378 |
54 |
| Biopsy of lower large bowel using a flexible endoscope | Procedure | 45331 |
12 |
| Diagnostic exam of lower portion of large bowel using a flexible endoscope | Procedure | 45330 |
11 |
| Colorectal cancer screening; colonoscopy on individual at high risk | Billing code | G0105 |
104 |
| Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk | Billing code | G0121 |
89 |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
76 |
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 gastroenterology specialists at this location 2
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 gastroenterology specialists in Williamsburg 3
Same specialty, same city.
More connections — 24 related providers in 3 groups
Trained at Eastern Virginia Medical School 8
Other providers in the same specialty who trained at the same institution.
Class of 1989 at Eastern Virginia Medical School 8
Providers who graduated from the same medical school in the same year.
Also performs Biopsy of large bowel using a flexible endoscope 8
Providers in VA 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.