Doctor profile · Federal record

Dr. John Stagias, M.D.

Gastroenterology Physician (CMS: Gastroenterology) · Southbridge, MA

  • NPI 1023012424
  • Accepts Medicare
  • MIPS 82.9 / 100 · 2023
  • 38 yrs in practice
  • Male
  • Solo practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
428 Hamilton St
Southbridge, MA 015501859
(508) 765-1600
fax (508) 765-0253
Mailing address
Po Box 250
Sturbridge, MA 015660250

Credentials & registration

NPPES · NUCC
NPI registered
June 2005 — 21 yrs on file
Profile last updated
September 21, 2012
Year of graduation
1988 — 38 yrs since
Specialty taxonomy
207RG0100X — NUCC code
State license (1)
Massachusetts #80381
Medicaid
MA #9773916

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1023012424. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
845
Distinct HCPCS
10
Medicare allowed
$135,778
HCPCS Description Services Patients Avg allowed
45385 Removal of polyps or growths of large bowel using an endoscope with mechanical snare 144 143 $254
99213 Established patient office or other outpatient visit, 20-29 minutes 89 75 $93
43239 Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope 84 81 $107
43235 Diagnostic exam of esophagus, stomach, and/or upper small bowel using a flexible endoscope 71 70 $105
99214 Established patient office or other outpatient visit, 30-39 minutes 67 62 $132
99222 Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 67 63 $133
G0105 Colorectal cancer screening; colonoscopy on individual at high risk 65 65 $185
G0121 Colorectal cancer screening; colonoscopy on individual not meeting criteria for high risk 47 47 $188
45378 Diagnostic exam of large bowel using a flexible endoscope 44 44 $185
99212 Established patient office or other outpatient visit, 10-19 minutes 42 17 $59

In context: peer comparison

Among 1 peers in Southbridge Gastroenterology Physician, average services per provider: 49. This provider delivers 17× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$851
Transactions
40
Manufacturers
9
Payer (manufacturer) Industry Txns Amount
Janssen Biotech, INC. 14 $339.89
Abbvie INC. 12 $232.54
Celgene Corporation 6 $113.34
Lilly USA, LLC 2 $47.81
Regeneron Healthcare Solutions, INC. 2 $36.24
Gilead Sciences, INC. 1 $27.04
Organon LLC 1 $24.32
Pfizer INC. 1 $15.92
Qol Medical, LLC 1 $14.11

By nature of payment

Food and Beverage
$775
Education
$76

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
874
Patients
171
Total drug cost
$234,611
Drug Type Claims Patients Total cost
Omeprazole Generic 148 39 $3,957
Mesalamine ER (Mesalamine) Brand 112 27 $51,482
Sucralfate Generic 106 21 $5,295
Mesalamine Generic 74 16 $52,137
Diphenoxylate-Atropine (Diphenoxylate Hcl/Atropine) Brand 59 16 $2,229
Famotidine Generic 58 25 $812
Balsalazide Disodium Generic 54 0 $8,438
Pantoprazole Sodium Generic 50 14 $1,083
Creon (Lipase/Protease/Amylase) Brand 42 0 $64,328
Cholestyramine (Cholestyramine (With Sugar)) Brand 35 13 $2,664

Frequently asked questions

Auto-generated from federal data
What is Dr. John Stagias's medical specialty?
Dr. John Stagias practices Gastroenterology Physician in Southbridge, MA.
Where does Dr. John Stagias practice?
Dr. John Stagias practices at 428 Hamilton St, Southbridge, MA 015501859. Office phone: 5087651600.
What is Dr. John Stagias's NPI?
Dr. John Stagias's National Provider Identifier (NPI) is 1023012424, issued by NPPES.
Does Dr. John Stagias accept Medicare assignment?
Yes. Dr. John Stagias accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. John Stagias commonly perform?
Top Medicare-reported procedures in 2023: Removal of polyps or growths of large bowel using an endoscope with mechanical snare (HCPCS 45385); Established patient office or other outpatient visit (HCPCS 99213); Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope (HCPCS 43239). Source: CMS Medicare Physician & Other Practitioners file.