John Stagias, M.D.
NPI 1023012424 · Gastroenterology Physician · Southbridge, MA
Enrolled with Medicare as Practitioner - Gastroenterology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John Stagias, M.D. is a Gastroenterology Physician provider in Southbridge, MA (NPI 1023012424).
Provider details
- NPI number
- 1023012424
- Entity type
- Individual
- Primary specialty
- Gastroenterology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- Yes
- License
- 80381 (MA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
21 yrs in NPPES registry
- Profile completeness25% of score
100% of core fields populated
- Practice footprint15% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)25% of score
836 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our .
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 133 | $96 |
| Removal of Polyps Or Growths of Large Bowel Using an Endoscope With Mechanical Snare45385 | 107 | $259 |
| Biopsy of Esophagus, Stomach, And/Or Upper Small Bowel Using a Flexible Endoscope43239 | 86 | $108 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 72 | $134 |
| Colorectal Cancer Screening; Colonoscopy on Individual at High RiskG0105 | 72 | $191 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 24 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 100 | 28 |
| Mesalamine | 66 | 13 |
| Diphenoxylate Hcl/Atropinebrand: Diphenoxylate-Atropine | 63 | 17 |
| Sucralfate | 57 | 14 |
| Famotidine | 46 | 22 |
| Mesalaminebrand: Mesalamine Er | 39 | — |
| Balsalazide Disodium | 34 | — |
| Prednisone |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$851 across 40 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-06-13
- Last updated
- 2012-09-21
Frequently asked questions
- What is John Stagias's NPI number?
- John Stagias's National Provider Identifier (NPI) is 1023012424, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John Stagias's specialty?
- John Stagias is listed in the NPPES registry with a primary specialty of Gastroenterology Physician (Allopathic & Osteopathic Physicians).
- Where is John Stagias located?
- John Stagias's practice location on file with NPPES is 428 Hamilton St, Southbridge, MA 01550-1859.
- What is John Stagias's phone number?
- The practice phone number listed in the NPPES registry for John Stagias is (508) 765-1600.
- Does John Stagias accept Medicare?
- John Stagias is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is John Stagias's NPI active?
- Yes — John Stagias's NPI (1023012424) is active in the NPPES registry as of the last update on 2012-09-21.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.