Walter M. Kim, M.D, PH.D.
Gastroenterology Physician · Boston, MA
Walter M. Kim, M.D, PH.D. is a gastroenterology physician with a practice address in Boston, Massachusetts, and NPI 1831484708, issued on Jun 18, 2011. Check the license (Massachusetts 257461, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.
- Name
- Walter M. Kim
- Credential
- M.D, PH.D.
- Primary taxonomy
- Gastroenterology Physician 207RG0100X
- License numbers
- 257461 MA
248676 MA
Self-reported in NPPES; status is on the state search - Practice location
- 75 Francis St, Boston, MA 02115
- Phone
- (617) 732-6389
- Enumerated
- Jun 18, 2011
- Record last updated
- May 22, 2017 (not updated in 9 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20170613002614); accepts Medicare assignment
- Medical or professional school
- University Of Massachusetts Medical School, 2011
- Entity
- Type 1 · individual
8 nearest gastroenterology physician records → All 686 in Massachusetts → Look up another NPI →
Also registered at 75 Francis St
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Sarah Abbett, M.D.Anesthesiology Physician1902097736
- Christine Abbott, NPAdult Health Nurse Practitioner1851471940
- Muhammad Abd-El-Barr, M.D., PH.D.Neurological Surgery Physician1891922688
- Duaa AbdelhameidStudent in an Organized Health Care Education/Training Program1851852867
Verify Walter M. Kim in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
Search for license 257461Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
98% fewer Medicare Part D claims than the average gastroenterology physician in 2024
13 Medicare Part D claims, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of 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
- Brigham And Womens Physicians Organization IncBoston, MA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Walter M. Kim among 686 gastroenterology physician records in Massachusetts
Walter M. Kim, M.D, PH.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 2011, is newer than 71% of them.
- NPI issued2011 · 71% of these records are older, 26% newer
- In a Medicare fileYes · 80% of these records are
- In the CMS Doctors and Clinicians fileYes · 72% of these records are
- Graduated2011 · median 2004 among the 491 with a school on file
- Record last updated2017 · 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).
Gastroenterology Physician providers in Massachusetts
There are 686 gastroenterology physician records in Massachusetts.
All 686 in Massachusetts → Every provider in Boston → Gastroenterology Physician nationwide →
The 8 gastroenterology physician records with the nearest ZIP codes
- Peter Banks, MDBoston, MA 021151235188251
- Martin Carey, MD DSCBoston, MA 021151326004524
- Sonia Friedman, MDBoston, MA 021151841257169
- Norman Grace, MDBoston, MA 021151831156215
- Kunal Jajoo, M.D.Boston, MA 021151336120591
- Linda Lee, MDBoston, MA 021151255315214
- Ramona Lim, M.D.Boston, MA 021151285608240
- Frederick Makrauer, MDBoston, MA 021151174580484
Common questions
What is Walter M. Kim, M.D, PH.D.'s NPI number?
Walter M. Kim, M.D, PH.D.'s National Provider Identifier (NPI) is 1831484708, issued on Jun 18, 2011. An NPI identifies a provider in billing; it is not a license.
Where is Walter M. Kim, M.D, PH.D. located?
The NPPES record lists a practice address at 75 Francis St, Boston, MA, 02115. Phone: (617) 732-6389. Providers update this record themselves, so call before visiting.
How can I verify Walter M. Kim, M.D, PH.D.'s license?
NPPES lists Massachusetts license number 257461, 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 Walter M. Kim, M.D, PH.D. prescribe under Medicare Part D?
In 2024, Walter M. Kim, M.D, PH.D. had 13 Medicare Part D claims; 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.