Doctor profile · Federal record
Dr. John Frese, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · New London, CT
- NPI 1457316382
- Accepts Medicare
- MIPS 83.2 / 100 · 2023
- 37 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
234A Bank St, 4Th Floor
New London, CT 063206054
(860) 442-0290
fax (860) 442-2136
Credentials & registration
- NPI registered
- April 2006 — 20 yrs on file
- Profile last updated
- December 19, 2012
- Year of graduation
- 1989 — 37 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- Connecticut #031797
- Medicaid
- CT #1317975
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1457316382. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
631
Distinct HCPCS
10
Medicare allowed
$83,722
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 144 | 64 | $83 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 121 | 100 | $134 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 64 | 63 | $108 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 61 | 57 | $136 | |
45384 |
Removal of polyps or growths of large bowel using a flexible endoscope with electrical cautery | 60 | 60 | $176 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 48 | 47 | $265 | |
G0105 |
Colorectal cancer screening; colonoscopy on individual at high risk | 36 | 36 | $187 | |
99203 |
New patient office or other outpatient visit, 30-44 minutes | 32 | 32 | $120 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 29 | 29 | $116 | |
99202 |
New patient office or other outpatient visit, 15-29 minutes | 18 | 18 | $75 |
In context: peer comparison
Among 2 peers in New London Gastroenterology Physician, average services per provider: 56. This provider delivers 11× the peer median.Open Payments
Industry payments received
All-time total
$2,947
Transactions
122
Manufacturers
15
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Phathom Pharmaceuticals, INC. | 25 | $573.41 | |
| Qol Medical, LLC | 11 | $408.02 | |
| Abbvie INC. | 22 | $394.82 | |
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | 18 | $347.19 | |
| Takeda Pharmaceuticals U.S.A., INC. | 9 | $235.05 | |
| Ardelyx, INC. | 7 | $164.46 | |
| Janssen Biotech, INC. | 5 | $110.99 | |
| Intercept Pharmaceuticals, INC. | 4 | $107.50 | |
| Lilly USA, LLC | 4 | $76.95 | |
| Exact Sciences Corporation | 4 | $67.47 | |
| Gilead Sciences, INC. | 4 | $65.91 | |
| Ipsen Biopharmaceuticals, INC | 2 | $53.88 | |
| Fresenius Kabi USA, LLC | 2 | $47.52 | |
| Ferring Pharmaceuticals INC. | 3 | $45.31 | |
| Boehringer Ingelheim Pharmaceuticals, INC. | 2 | $41.48 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
768
Patients
291
Total drug cost
$74,941
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Omeprazole | Generic | 239 | 74 | $5,356 |
| Pantoprazole Sodium | Generic | 157 | 43 | $3,183 |
| Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,Mag Sulfates) | Brand | 157 | 152 | $12,117 |
| Mesalamine | Generic | 34 | 0 | $29,430 |
| Lansoprazole | Generic | 24 | 0 | $756 |
| Esomeprazole Magnesium | Generic | 23 | 0 | $1,363 |
| Sutab (Sod Sulf/Pot Chloride/Mag Sulf) | Brand | 22 | 22 | $3,751 |
| Famotidine | Generic | 18 | 0 | $513 |
| Dexlansoprazole Dr (Dexlansoprazole) | Brand | 16 | 0 | $5,778 |
| Budesonide Dr (Budesonide) | Brand | 15 | 0 | $993 |
Frequently asked questions
What is Dr. John Frese's medical specialty?
Dr. John Frese practices Gastroenterology Physician in New London, CT.
Where does Dr. John Frese practice?
Dr. John Frese practices at 234A Bank St, New London, CT 063206054. Office phone: 8604420290.
What is Dr. John Frese's NPI?
Dr. John Frese's National Provider Identifier (NPI) is 1457316382, issued by NPPES.
Does Dr. John Frese accept Medicare assignment?
Yes. Dr. John Frese accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Frese commonly perform?
Top Medicare-reported procedures in 2023: Subsequent hospital care with moderate levelof medical decision making (HCPCS 99232); Established patient office or other outpatient visit (HCPCS 99214); Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239). Source: CMS Medicare Physician & Other Practitioners file.