Doctor profile · Federal record
Dr. Christopher Leung, M.D.
Gastroenterology Physician (CMS: Gastroenterology) · Gastroenterology Physician · Stoneham, MA
- NPI 1538257464
- Accepts Medicare
- 22 yrs in practice
- Licensed in 2 states
- Male
- Group practice
- No sanctions
Practice & contact
- Primary practice
-
51 Montvale Ave
Stoneham, MA 021802417
(781) 213-5200
fax (781) 481-9016
Credentials & registration
- NPI registered
- October 2006 — 20 yrs on file
- Profile last updated
- January 21, 2015
- Year of graduation
- 2004 — 22 yrs since
- Specialty taxonomy
- 207RG0100X — NUCC code
- State licenses (2)
- Massachusetts #230438 · New Hampshire #14969
Federal sanctions & exclusions
No sanctions, exclusions or revocations on file
Checked against OIG LEIE on NPI 1538257464. Last verified May 11, 2026.Medicare procedures · 2023
Top services delivered
Total services
741
Distinct HCPCS
10
Medicare allowed
$109,215
| HCPCS | Description | Services | Patients | Avg allowed | |
|---|---|---|---|---|---|
99214 |
Established patient office or other outpatient visit, 30-39 minutes | 218 | 158 | $104 | |
45385 |
Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 157 | 155 | $266 | |
43239 |
Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 94 | 94 | $110 | |
45380 |
Biopsy of large bowel using a flexible endoscope | 51 | 51 | $112 | |
99204 |
New patient office or other outpatient visit, 45-59 minutes | 41 | 41 | $143 | |
99222 |
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | 36 | 36 | $138 | |
99213 |
Established patient office or other outpatient visit, 20-29 minutes | 32 | 30 | $70 | |
99233 |
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 50 minutes | 29 | 24 | $126 | |
91110 |
Imaging of digestive tract done from the inside of the digestive tract | 26 | 25 | $119 | |
45378 |
Diagnostic exam of large bowel using a flexible endoscope | 15 | 15 | $180 |
In context: peer comparison
Among 6 peers in this city , average services per provider: 64. This provider delivers 12× the peer median.Medicare Part D · 2023
Top prescriptions
Total claims
577
Patients
174
Total drug cost
$59,696
| Drug | Type | Claims | Patients | Total cost |
|---|---|---|---|---|
| Omeprazole | Generic | 213 | 82 | $3,910 |
| Pantoprazole Sodium | Generic | 174 | 53 | $4,744 |
| Famotidine | Generic | 52 | 20 | $594 |
| Linzess (Linaclotide) | Brand | 31 | 0 | $31,683 |
| Dicyclomine Hcl | Generic | 19 | 0 | $419 |
| Gavilyte-G (Peg3350/Sod Sulf,bicarb,cl/Kcl) | Brand | 19 | 19 | $304 |
| Prednisone | Generic | 18 | 0 | $89 |
| Sucralfate | Generic | 16 | 0 | $1,401 |
| Dexilant (Dexlansoprazole) | Brand | 12 | 0 | $4,609 |
| Dexlansoprazole Dr (Dexlansoprazole) | Brand | 12 | 0 | $5,774 |
Hospital affiliations
Frequently asked questions
What is Dr. Christopher Leung's medical specialty?
Dr. Christopher Leung practices Gastroenterology Physician in Stoneham, MA.
Where does Dr. Christopher Leung practice?
Dr. Christopher Leung practices at 51 Montvale Ave, Stoneham, MA 021802417. Office phone: 7812135200.
What is Dr. Christopher Leung's NPI?
Dr. Christopher Leung's National Provider Identifier (NPI) is 1538257464, issued by NPPES.
Does Dr. Christopher Leung accept Medicare assignment?
Yes. Dr. Christopher Leung accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Christopher Leung commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385); Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239). Source: CMS Medicare Physician & Other Practitioners file.