Doctor profile · Federal record
Dr. Liam Zakko, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Lebanon, NH
- NPI 1932499092
- Accepts Medicare
- MIPS 83.2 / 100 · 2023
- 15 yrs in practice
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
One Medical Center Drive, Gastroenterology
Lebanon, NH 03756
(603) 650-5261
Credentials & registration
- NPI registered
- April 2011 — 15 yrs on file
- Profile last updated
- July 10, 2018
- Year of graduation
- 2011 — 15 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State license (1)
- New Hampshire #18766
- Medicaid (2)
- VT #1032657 · NH #3112140
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1932499092. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
341
Distinct HCPCS
10
Medicare allowed
$49,258
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 63 | 61 | $65 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 50 | 50 | $257 | |
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 50 | 42 | $132 | |
43249 |
Balloon dilation of esophagus, stomach, and/or upper small bowel using a flexible endoscope, less than 3.0 cm | 30 | 26 | $137 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 29 | 26 | $92 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 29 | 26 | $136 | |
99232 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 21 | 14 | $83 | |
43242 |
Ultrasound guided needle aspiration or biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 17 | 17 | $242 | |
43259 |
Ultrasound exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 16 | 15 | $235 | |
45378 |
Diagnostic exam of large bowel using a flexible endoscope | 14 | 14 | $176 |
In context: peer comparison
Among 10 peers in Lebanon Gastroenterology Physician, average services per provider: 38. This provider delivers 9.0× the peer median.Open Payments
Industry payments received
All-time total
$1,126
Transactions
47
Manufacturers
13
| Payer (manufacturer) | Industry | Txns | Amount |
|---|---|---|---|
| Salix Pharmaceuticals, A Division of Bausch Health US, LLC | 14 | $306.27 | |
| Abbvie INC. | 11 | $185.96 | |
| Lilly USA, LLC | 1 | $116.53 | |
| Takeda Pharmaceuticals U.S.A., INC. | 4 | $100.79 | |
| Genzyme Corporation | 3 | $80.46 | |
| Intercept Pharmaceuticals, INC. | 4 | $78.01 | |
| Qol Medical, LLC | 2 | $53.93 | |
| Boston Scientific Corporation | 1 | $49.37 | |
| Phathom Pharmaceuticals, INC. | 2 | $42.94 | |
| Janssen Biotech, INC. | 2 | $42.35 | |
| Madrigal Pharmaceuticals | 1 | $34.74 | |
| Ferring Pharmaceuticals INC. | 1 | $18.99 | |
| Gilead Sciences, INC. | 1 | $15.29 |
By nature of payment
Medicare Part D · 2023
Top prescriptions
Total claims
384
Patients
177
Total drug cost
$213,463
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Pantoprazole Sodium | Generic | 119 | 44 | $2,805 |
| Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,Mag Sulfates) | Brand | 56 | 54 | $4,519 |
| Linzess (Linaclotide) | Brand | 52 | 19 | $42,951 |
| Peg 3350-Electrolyte (Sodium Chloride/Nahco3/Kcl/Peg) | Brand | 48 | 46 | $1,040 |
| Esomeprazole Magnesium | Generic | 33 | 0 | $3,503 |
| Humira(Cf) Pen (Adalimumab) | Brand | 20 | 0 | $153,367 |
| Mirtazapine | Generic | 18 | 0 | $346 |
| Ciprofloxacin Hcl | Generic | 14 | 14 | $40 |
| Dexlansoprazole Dr (Dexlansoprazole) | Brand | 12 | 0 | $4,652 |
| Ondansetron Odt (Ondansetron) | Brand | 12 | 0 | $240 |
Hospital affiliations
Frequently asked questions
What is Dr. Liam Zakko's medical specialty?
Dr. Liam Zakko practices Gastroenterology Physician in Lebanon, NH.
Where does Dr. Liam Zakko practice?
Dr. Liam Zakko practices at One Medical Center Drive, Lebanon, NH 03756. Office phone: 6036505261.
What is Dr. Liam Zakko's NPI?
Dr. Liam Zakko's National Provider Identifier (NPI) is 1932499092, issued by NPPES.
Does Dr. Liam Zakko accept Medicare assignment?
Yes. Dr. Liam Zakko accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Liam Zakko commonly perform?
Top Medicare-reported procedures in 2023: Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239); Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385); Established patient office or other outpatient visit (HCPCS 99214). Source: CMS Medicare Physician & Other Practitioners file.