Doctor profile · Federal record
Dr. David Assis, MD
Hepatology Physician (CMS: Gastroenterology) · Gastroenterology Physician · New Haven, CT
- NPI 1124235015
- Accepts Medicare
- MIPS 71.7 / 100 · 2023
- 21 yrs in practice
- Male
- Solo practice
- No sanctions
Practice & contact
- Primary practice
-
333 Cedar St, 1080 Lmp
New Haven, CT 06520
(203) 785-0712 - Mailing address
-
333 Cedar Street, 1080 Lmp
New Haven, CT 06520
Credentials & registration
- NPI registered
- May 2007 — 19 yrs on file
- Profile last updated
- May 7, 2013
- Year of graduation
- 2005 — 21 yrs since
- Specialty taxonomy
- 207RI0008X — NUCC code
- State license (1)
- Connecticut #051778
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1124235015. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
150
Distinct HCPCS
3
Medicare allowed
$18,611
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 78 | 53 | $135 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 39 | 13 | $126 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 33 | 29 | $97 |
In context: peer comparison
Among 1 peers in New Haven Hepatology Physician, average services per provider: 50. This provider delivers 3.0× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
455
Patients
96
Total drug cost
$145,623
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Ursodiol | Generic | 173 | 42 | $50,841 |
| Carvedilol | Generic | 47 | 18 | $588 |
| Azathioprine | Generic | 38 | 11 | $3,524 |
| Prednisone | Generic | 37 | 13 | $713 |
| Mycophenolate Mofetil | Generic | 30 | 0 | $9,184 |
| Spironolactone | Generic | 28 | 12 | $940 |
| Furosemide | Generic | 21 | 0 | $145 |
| Xifaxan (Rifaximin) | Brand | 21 | 0 | $75,755 |
| Fenofibrate | Generic | 19 | 0 | $732 |
| Tacrolimus | Generic | 15 | 0 | $2,214 |
Hospital affiliations
Frequently asked questions
What is Dr. David Assis's medical specialty?
Dr. David Assis practices Hepatology Physician in New Haven, CT.
Where does Dr. David Assis practice?
Dr. David Assis practices at 333 Cedar St, New Haven, CT 06520. Office phone: 2037850712.
What is Dr. David Assis's NPI?
Dr. David Assis's National Provider Identifier (NPI) is 1124235015, issued by NPPES.
Does Dr. David Assis accept Medicare assignment?
Yes. Dr. David Assis accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. David Assis commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Subsequent hospital care with moderate levelof medical decision making (HCPCS 99233); Established patient office or other outpatient visit (HCPCS 99213). Source: CMS Medicare Physician & Other Practitioners file.