NPPES file of Aug 9, 2026

Kenneth Ronald Falchuk, M.D.

Gastroenterology Physician · Boston, MA

Kenneth Ronald Falchuk, M.D. is a gastroenterology physician with a practice address in Boston, Massachusetts, and NPI 1639154305, issued on Dec 14, 2005. Check the license (Massachusetts 34692, as entered in NPPES) on the Massachusetts Board of Registration in Medicine; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1639154305
Name
Kenneth Ronald Falchuk
Credential
M.D.
Primary taxonomy
Gastroenterology Physician 207RG0100X
License number
34692 MA
Self-reported in NPPES; status is on the state search
Practice location
110 Francis St, Boston, MA 02215
Phone
(617) 632-8623
Enumerated
Dec 14, 2005
Record last updated
Apr 13, 2011 (not updated in 15 years: call before relying on the address or phone)
Fax
(617) 632-9199
Medicaid ID
2005204 MA
Medicare enrollment
Enrolled (PECOS I20051021000571); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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Also registered at 110 Francis St

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Oluseyi Akintorin, M.D.Surgery Physician1780021006
  2. Salah Aldekhayel, M.D.Surgery of the Hand (Plastic Surgery) Physician1861877755
  3. Carolyn Alonso, M.D.Infectious Disease Physician1841336039
  4. Elizabeth Alqueza, PA-CPhysician Assistant1972584100
  5. Abdulrahman Alturki, MBBS,MSC,FRCSCStudent in an Organized Health Care Education/Training Program1467905406
  6. Michael Apstein, MDGastroenterology Physician1609854603

Verify Kenneth Ronald Falchuk in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMassachusetts Board of Registration in Medicine
    Search for license 34692
    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the Massachusetts license search

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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23% more Medicare Part D claims than the average gastroenterology physician in 2024

1,000 Medicare Part D claims for 403 beneficiaries, against an average of 811 among the 16,445 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.

  1. Kenneth Falchuk1,000
  2. Specialty average811

Most prescribed

  1. Omeprazole216 claims
  2. Sod Sulf-Potass Sulf-Mag Sulf209 claims
  3. Famotidine129 claims
  4. Mesalamine74 claims
  5. Pantoprazole Sodium56 claims
  6. Linzess26 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

  1. Harvard Medical Faculty Phys AT Beth Israel Deaconess Med Ctr IncBoston, MA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Kenneth Ronald Falchuk among 686 gastroenterology physician records in Massachusetts

Kenneth Ronald Falchuk, 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 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 86% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 72% of these records are
  • Graduated1967 · median 2004 among the 491 with a school on file
  • Record last updated2011 · 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.

The 8 gastroenterology physician records with the nearest ZIP codes

  1. Michael Apstein, MDBoston, MA 022151609854603
  2. Alphonso Brown, MDBoston, MA 022151871579987
  3. Valerie Byrnes, M.D.Boston, MA 022151467410332
  4. Catherine Cheney, M.D.Boston, MA 022151710962030
  5. Zalman Falchuk, MDBoston, MA 022151912996000
  6. Douglas Horst, MDBoston, MA 022151518957224
  7. John Lamont, MDBoston, MA 022151316903735
  8. Anthony Lembo, M.D.Boston, MA 022151407826266

Common questions

What is Kenneth Ronald Falchuk, M.D.'s NPI number?

Kenneth Ronald Falchuk, M.D.'s National Provider Identifier (NPI) is 1639154305, issued on Dec 14, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Kenneth Ronald Falchuk, M.D. located?

The NPPES record lists a practice address at 110 Francis St, Boston, MA, 02215. Phone: (617) 632-8623. Providers update this record themselves, so call before visiting.

How can I verify Kenneth Ronald Falchuk, M.D.'s license?

NPPES lists Massachusetts license number 34692, 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 Kenneth Ronald Falchuk, M.D. prescribe under Medicare Part D?

In 2024, Kenneth Ronald Falchuk, M.D. had 1,000 Medicare Part D claims for 403 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.