Physician Profile
Unclaimed ProfileAbout FRESE
John Frese, M.D. practices gastroenterology in New London, CT. John is a 1989 graduate of University of Connecticut School of Medicine. According to Medicare claims data, John cared for 600 Medicare patients across 729 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
- (860) 442-0290
- Email not available
Practice Locations
234A BANK ST 4TH FLOOR
New London, CT 06320
Procedures Most Often Billed to Medicare
729 services · 600 patients · 13 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Removal of polyps or growths of large bowel using a flexible endoscope with electrical cautery | Procedure | 45384 |
68 |
| Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43239 |
64 |
| Removal of polyps or growths of large bowel using an endoscope with mechanical snare | Procedure | 45385 |
54 |
| Biopsy of large bowel using a flexible endoscope | Procedure | 45380 |
28 |
| Diagnostic exam of large bowel using a flexible endoscope | Procedure | 45378 |
18 |
| Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | Procedure | 43235 |
12 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
197 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
127 |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
63 |
| New patient office or other outpatient visit with low level of medical decision making, if using time, 30 minutes or more | Office visit | 99203 |
39 |
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 3
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.
More connections — 16 related providers in 2 groups
Trained at University of Connecticut School of Medicine 8
Other providers in the same specialty who trained at the same institution.
Class of 1989 at University of Connecticut School of Medicine 8
Providers who graduated from the same medical school in the same year.
Common questions
What does Dr. Frese specialize in?
Dr. Frese is a gastroenterology in New London, CT. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “GASTROENTEROLOGY”.
NPI registry
Where is Dr. Frese located?
Dr. Frese is listed at 234A BANK ST 4TH FLOOR, New London, CT 06320. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Frese's phone number?
The number on file is (860) 442-0290. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Frese's NPI number?
Dr. Frese's National Provider Identifier is 1457316382. 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. Frese go to medical school?
Dr. Frese attended University of Connecticut School of Medicine, graduating in 1989. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Frese been practicing?
Dr. Frese has 37 years experience. Calculated from a graduation year of 1989, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Frese do most often?
According to Medicare billing data, Dr. Frese performs procedures including removal of polyps or growths of large bowel using a flexible endoscope with electrical cautery, biopsy of esophagus, stomach, and/or upper small 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. Frese confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Frese. If this is you, claiming it is free.
Guide.md
Is this your profile?
Verify your identity to control how patients — and AI assistants — describe you.
Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.