Doctor profile · Federal record

Dr. Kenneth Falchuk, M.D.

Gastroenterology Physician (CMS: Internal Medicine) · Boston, MA

  • NPI 1639154305
  • Accepts Medicare
  • 59 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
110 Francis St
Boston, MA 022155501
(617) 632-8623
fax (617) 632-9199

Credentials & registration

NPPES · NUCC
NPI registered
December 2005 — 21 yrs on file
Profile last updated
April 13, 2011
Year of graduation
1967 — 59 yrs since
Specialty taxonomy
207RG0100X — NUCC code
State license (1)
Massachusetts #34692
Medicaid
MA #2005204

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1639154305. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
643
Distinct HCPCS
9
Medicare allowed
$88,413
HCPCS Description Services Patients Avg allowed
99214 Established patient office or other outpatient visit, 30-39 minutes 240 191 $103
45380 Biopsy of large bowel using a flexible endoscope 121 121 $192
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 81 81 $131
G0105 Colorectal cancer screening; colonoscopy on individual at high risk 77 77 $190
G0500 Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito 44 43 $6
99204 New patient office or other outpatient visit, 45-59 minutes 29 29 $142
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare 20 20 $268
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk 19 19 $190
99215 Established patient office or other outpatient visit, 40-54 minutes 12 11 $153

In context: peer comparison

Among 78 peers in Boston Gastroenterology Physician, average services per provider: 56. This provider delivers 11× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
829
Patients
431
Total drug cost
$737,001
Drug Type Claims Patients Total cost
Omeprazole Generic 206 74 $5,307
Sod Sulf-Potass Sulf-Mag Sulf (Sodium, Potassium,Mag Sulfates) Brand 192 188 $15,403
Famotidine Generic 85 39 $2,458
Mesalamine Generic 63 20 $80,676
Clenpiq (Sod Picosulf/Mag Ox/Citric Ac) Brand 59 57 $11,455
Pantoprazole Sodium Generic 51 23 $1,564
Linzess (Linaclotide) Brand 31 0 $31,761
Ondansetron Hcl Generic 24 0 $109
Dicyclomine Hcl Generic 19 13 $819
Mesalamine ER (Mesalamine) Brand 19 0 $13,643

Frequently asked questions

Auto-generated from federal data
What is Dr. Kenneth Falchuk's medical specialty?
Dr. Kenneth Falchuk practices Gastroenterology Physician in Boston, MA.
Where does Dr. Kenneth Falchuk practice?
Dr. Kenneth Falchuk practices at 110 Francis St, Boston, MA 022155501. Office phone: 6176328623.
What is Dr. Kenneth Falchuk's NPI?
Dr. Kenneth Falchuk's National Provider Identifier (NPI) is 1639154305, issued by NPPES.
Does Dr. Kenneth Falchuk accept Medicare assignment?
Yes. Dr. Kenneth Falchuk accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Kenneth Falchuk commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99214); Biopsy of large bowel using a flexible endoscope (HCPCS 45380); Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239). Source: CMS Medicare Physician & Other Practitioners file.