Doctor profile · Federal record

Dr. Muthoka Mutinga, M.D.

Gastroenterology Physician (CMS: Gastroenterology) · Boston, MA

  • NPI 1609823293
  • Accepts Medicare
  • 31 yrs in practice
  • Male
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1153 Centre St, Suite 45
Boston, MA 021303446
(617) 522-9996

Credentials & registration

NPPES · NUCC
NPI registered
May 2006 — 20 yrs on file
Profile last updated
December 15, 2011
Year of graduation
1995 — 31 yrs since
Specialty taxonomy
207RG0100X — NUCC code
State license (1)
Massachusetts #153759

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1609823293. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
1,050
Distinct HCPCS
10
Medicare allowed
$126,167
HCPCS Description Services Patients Avg allowed
45380 Biopsy of large bowel using a flexible endoscope 253 252 $159
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 150 145 $6
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 122 121 $102
99213 Established patient office or other outpatient visit, 20-29 minutes 121 116 $100
99214 Established patient office or other outpatient visit, 30-39 minutes 91 84 $141
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare 79 78 $268
99232 Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 63 43 $84
G0105 Colorectal cancer screening; colonoscopy on individual at high risk 47 47 $193
99221 Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes 44 43 $88
45378 Diagnostic exam of large bowel using a flexible endoscope 19 19 $167

In context: peer comparison

Among 78 peers in Boston Gastroenterology Physician, average services per provider: 56. This provider delivers 19× the peer median.

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
836
Patients
351
Total drug cost
$324,345
Drug Type Claims Patients Total cost
Famotidine Generic 160 51 $5,428
Gavilyte-G (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) Brand 123 119 $1,965
Omeprazole Generic 118 43 $2,990
Gavilyte-C (Peg3350/Sod Sulf,Bicarb,Cl/Kcl) Brand 95 88 $1,726
Colestipol Hcl Generic 56 21 $3,245
Pantoprazole Sodium Generic 45 17 $1,483
Linzess (Linaclotide) Brand 43 12 $42,904
Diphenoxylate-Atropine (Diphenoxylate Hcl/Atropine) Brand 31 0 $707
Mesalamine Generic 26 0 $25,855
Sucralfate Generic 26 0 $3,620

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Muthoka Mutinga's medical specialty?
Dr. Muthoka Mutinga practices Gastroenterology Physician in Boston, MA.
Where does Dr. Muthoka Mutinga practice?
Dr. Muthoka Mutinga practices at 1153 Centre St, Boston, MA 021303446. Office phone: 6175229996.
What is Dr. Muthoka Mutinga's NPI?
Dr. Muthoka Mutinga's National Provider Identifier (NPI) is 1609823293, issued by NPPES.
Does Dr. Muthoka Mutinga accept Medicare assignment?
Yes. Dr. Muthoka Mutinga accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Muthoka Mutinga commonly perform?
Top Medicare-reported procedures in 2023: Biopsy of large bowel using a flexible endoscope (HCPCS 45380); 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 (HCPCS G0500); Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239). Source: CMS Medicare Physician & Other Practitioners file.