Christopher H. Leung, M.D.
Gastroenterology Physician · Stoneham, MA
Christopher H. Leung, M.D. is a gastroenterology physician with a practice address in Stoneham, Massachusetts, and NPI 1538257464, issued on Oct 10, 2006. Check the license (Massachusetts 230438, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Christopher H. Leung
- Credential
- M.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- 230438 MA
14969 NH
Self-reported in NPPES; status is on the state search - Practice location
- 51 Montvale Ave, Stoneham, MA 02180
- Phone
- (781) 213-5200
- Enumerated
- Oct 10, 2006
- Record last updated
- Jan 21, 2015 (not updated in 11 years: call before relying on the address or phone)
- Fax
- (781) 481-9016
- Medicare enrollment
- Enrolled (PECOS I20090128000581); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 686 in Massachusetts → Look up another NPI →
Also registered at 51 Montvale Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Wanda Blanton, M.D.Gastroenterology Physician1417123431
- Brian Clark, M.D.Gastroenterology Physician1114193612
- Allyson Grant, NPFamily Nurse Practitioner1407526858
- Aarti Kakkar, MDGastroenterology Physician1992971824
- Venkata Satyam, M.D.Gastroenterology Physician1275074460
Verify Christopher H. Leung in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 230438Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
10% more Medicare Part D claims than the average gastroenterology physician in 2024
894 Medicare Part D claims for 290 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 12% of claims.
Most prescribed
- Omeprazole259 claims
- Pantoprazole Sodium157 claims
- Famotidine62 claims
- Gavilyte-G51 claims
- Sucralfate45 claims
- Linzess40 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Bills Medicare through one group practice
- Hallmark Health Medical Associates IncRevere, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Christopher H. Leung among 686 gastroenterology physician records in Massachusetts
Christopher H. Leung, M.D. is one of 686 gastroenterology physician records with a practice address in Massachusetts. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 14% of them.
- NPI issued2006 · 14% of these records are older, 49% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2004 · median 2004 among the 491 with a school on file
- Record last updated2015 · 66% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RG0100X and a Massachusetts practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
11 gastroenterology physician records list a practice address in Stoneham
They are 11 of the 473 NPPES records with a practice address in Stoneham, and 686 gastroenterology physician records in Massachusetts.
All 686 in Massachusetts → Every provider in Stoneham → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Robert Aaron, MDStoneham, MA 021801962694323
- Wanda Blanton, M.D.Stoneham, MA 021801417123431
- Brian Clark, M.D.Stoneham, MA 021801114193612
- David Fefferman, M.D.Stoneham, MA 021801720015928
- Kristen Francione, RN BSNStoneham, MA 021801497537443
- Aarti Kakkar, MDStoneham, MA 021801992971824
- Jose Marcal, M.D.Stoneham, MA 021801538116223
- Robert Muggia, M.D.Stoneham, MA 021801982662813
Common questions
What is Christopher H. Leung, M.D.'s NPI number?
Christopher H. Leung, M.D.'s National Provider Identifier (NPI) is 1538257464, issued on Oct 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Christopher H. Leung, M.D. located?
The NPPES record lists a practice address at 51 Montvale Ave, Stoneham, MA, 02180. Phone: (781) 213-5200. Providers update this record themselves, so call before visiting.
How can I verify Christopher H. Leung, M.D.'s license?
NPPES lists Massachusetts license number 230438, as entered by the provider. Search the Massachusetts Board of Registration in Medicine at https://findmydoctor.mass.gov/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Christopher H. Leung, M.D. prescribe under Medicare Part D?
In 2024, Christopher H. Leung, M.D. had 894 Medicare Part D claims for 290 beneficiaries; the average among gastroenterology physician prescribers was 811. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.