Dr. John Gus Stagias, MD

  • Southbridge, MA
  • Gastroenterologist
NPI1023012424PAC ID2567452790
Medicare services, 2024
836
Medicare patients, 2024
568
Part D claims, 2024
925
MIPS score, 2024
79
Hospital affiliations
1
Practice address
100 South Street, Southbridge, MA 01550
Practice phone
Call (508) 765-9771
Professional email
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Personal email
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Mobile number
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Social profiles

Primary practice

UMass Memorial Health - Harrington Hospital

Hospital · Southbridge, Massachusetts

See all 4 affiliations

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Dr. John Gus Stagias is a gastroenterologist in Southbridge, Massachusetts

Dr. Stagias practices at UMass Memorial Health - Harrington Hospital in Southbridge, Massachusetts, part of UMass Memorial Health Care.

Dr. Stagias' NPI, 1023012424, was assigned on June 13, 2005. Dr. Stagias graduated from Albany Medical College of Union University in 1988. Dr. Stagias holds Massachusetts license 80381.

NPI and contact details
Medicare PAC ID
2567452790
NPI enumeration date
June 13, 2005
NPI status
Active
Accepts Medicare assignment
Yes
Practice phone
(508) 765-9771
Professional email
Get email
Personal email
Get email
Mobile number
Get number
Sex
Male
Estimated age
64
Medical school graduation
1988

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)

Dr. John Gus Stagias practices at UMass Memorial Health - Harrington Hospital in Southbridge, Massachusetts

Dr. Stagias' primary practice is UMass Memorial Health - Harrington Hospital, at 100 South Street, Southbridge, MA 01550 in Worcester County. The practice phone is (508) 765-9771.

Source: Dmand AI Affiliation Data

Dr. John Gus Stagias is affiliated with 2 sites of care and 2 medical groups

Dr. Stagias' primary practice is UMass Memorial Health - Harrington Hospital in Southbridge, Massachusetts, part of UMass Memorial Health Care. The medical group on file is John G. Stagias, MD, PC. Dmand AI also links Dr. Stagias to 1 more group practice or clinic and 1 medical group, each named with a free account.

See all 4 affiliations for Dr. Stagias

Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data

Dmand AI tracks the EHR system at Dr. John Gus Stagias' practice

Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Stagias practices, 2 sites in all. Vendor and product names are available with a free account.

EHR by site
SiteEHR vendor and product
UMass Memorial Health - Harrington HospitalAvailable with a free account
+1 more site and 1 medical groupAvailable with a free account

Source: Dmand AI Technology Install Data

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Dr. John Gus Stagias is one of 597 gastroenterologists in Massachusetts

Gastroenterology is Dr. Stagias' primary specialty in the NPI Registry, under taxonomy code 207RG0100X. Dr. Stagias is licensed in Massachusetts.

Specialties and state licenses

  • Gastroenterology, MassachusettsPrimaryLicense 80381 · taxonomy 207RG0100X

Gastroenterologists near Dr. Stagias

Counts of gastroenterologists with a Dmand AI profile, by place and practice. Each opens the list.

Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks

Dr. John Gus Stagias billed Medicare for 836 services in 2024

CMS data shows 836 Medicare services from Dr. Stagias across 16 procedure codes in 2024, for 568 Medicare patients. Medicare paid $100,707 for them.

Medicare services, 2024836
Medicare patients568
Paid by Medicare$100,707
Procedure codes16

Dr. Stagias' Medicare services by type, 2023 to 2024

  • 2023
  • 2024
Surgery
2023: 4082024: 36012%
Office and hospital visits
2023: 3022024: 35518%
Other services
2023: 1122024: 1093%
Tests and treatments
2023: 232024: 1248%

Where Dr. Stagias' Medicare services took place, 2024

  • In an office28935%
  • In a facility54765%

Dr. Stagias compared with the Massachusetts median for gastroenterologists, 2024

  • Dr. Stagias
  • Massachusetts median
Medicare services
836vs 51961% above
Medicare patients
568vs 34366% above
Part D claims
729vs 3002.4 times

Medians across 583 gastroenterologists in Massachusetts with Dmand AI profiles that report each measure.

Dr. Stagias' most billed Medicare procedure codes, 2024

CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.

See all procedures by Dr. Stagias

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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks

Dr. John Gus Stagias treated 568 Medicare patients in 2024, average age 72

CMS counts 568 Medicare patients who saw Dr. Stagias in 2024. The largest group is 65 to 74, with 271 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 24% are also on Medicaid. Their average risk score is 1.33, where 1.00 is the Medicare average.

Across all payers, Dmand AI patient panel data puts Dr. Stagias' median patient age at 68, with 51% women.

Medicare patients, 2024568
Average age72
Average risk score1.33
Also on Medicaid24%

Dr. Stagias' Medicare patients by age, 2024

Dr. Stagias' Medicare patients by sex, 2024

  • Women30954%
  • Men25946%

Chronic conditions among Dr. Stagias' Medicare patients, 2024

  1. High blood pressure75%
  2. High cholesterol75%
  3. Arthritis45%
  4. Anxiety33%
  5. Diabetes31%
  6. Chronic kidney disease28%
  7. Mood disorders28%
  8. Depression26%

Share of Medicare patients with each condition. A patient can have several.

Dr. Stagias' patients across all payers

Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.

Patient panel by age, all payers

Median age 68

Patient panel by sex, all payers

  • Women51%
  • Men49%

Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data

Dr. John Gus Stagias wrote 925 Medicare Part D claims in 2024

In 2024, Dr. Stagias wrote 925 Medicare Part D claims for 221 patients. 81% of them were for generic drugs. CMS names the drug for 729 of them, across 24 drugs with 11 or more claims each, at $637,887 in total drug cost. In 2023, CMS named 1,062 claims across 28 drugs.

Part D claims, 2024925
Drugs named by CMS24
Total drug cost$637,887
Part D patients221

Dr. Stagias' Part D claims by kind of drug, 2024

  • Generic751 claims81%
  • Brand-name and other174 claims19%

Dr. Stagias' most prescribed drugs by claims, 2024

CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.

Drug classes CMS tracks in Dr. Stagias' Part D claims, 2024

  • Antibiotics4%37 of 925 claims

Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.

Part D claims for drugs CMS names, 2023 to 2024

  • 2023
  • 2024
Claims for drugs CMS names
2023: 1,0622024: 72931%

Drugs named by CMS: 24 in 2024, 28 in 2023.

See all prescribing by Dr. Stagias

Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data

Dr. John Gus Stagias scored 79 out of 100 in Medicare's MIPS program for 2024

CMS publishes a Merit-based Incentive Payment System (MIPS) score of 79 out of 100 for Dr. Stagias for performance year 2024, reported individually. Dr. Stagias accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS counts 204 procedures of colonoscopy by Dr. Stagias, more than 94% of the clinicians it reports for that procedure.

Accepts Medicare assignment
Yes

Dr. Stagias' MIPS scores, performance year 2024

  • 79of 100Final score
  • 54of 100Quality
  • 40of 100Improvement Activities
  • 80of 100Cost

Each score is out of 100. The final score weighs the categories CMS scored for this clinician.

Where Dr. Stagias ranks in Medicare procedure volume

Colonoscopy
94th percentile204 procedures
Upper gastrointestinal (GI) endoscopy for acid reflux
88th percentile173 procedures

CMS ranks each clinician against every clinician it reports for the same procedure category.

Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)

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Dr. John Gus Stagias received $36,190 in industry payments from 2017 to 2025

CMS Open Payments shows 172 general payments to Dr. Stagias from 24 drug and device companies from 2017 to 2025. Consulting fees make up the largest share, 91% of the total. Medtronic, Inc. paid the most, $33,023.

General payments to Dr. Stagias by program year, 2017 to 2025

General payments to Dr. Stagias by kind, 2017 to 2025

$36.2Kin total
  • Consulting fees$33,00091%
  • Food and beverage$3,1149%
  • Education$760%

Companies that paid Dr. Stagias the most, 2017 to 2025

Share is of all general payments to this clinician.

See all payments to Dr. Stagias

Source: Open Payments (CMS), 2025 data, released July 7, 2026

Dr. John Gus Stagias graduated from Albany Medical College of Union University

Dr. Stagias graduated from Albany Medical College of Union University in 1988.

  1. Medical schoolAlbany Medical College of Union University

Source: Dmand AI Professional Profile Data

Sources for Dr. John Gus Stagias's profile data

Sources for the data on this page
Data on this pageSource
NPI, name, sex, specialty and licensesNPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data
Practice locations and phoneDmand AI Affiliation Data
Primary practice, affiliations and health systemDmand AI Affiliation DataDmand AI Org Hierarchy Data
Medicare services and procedure codesMedicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab)
State medians for the same specialtyDmand AI Peer Benchmarks
Medicare patients and the all-payer patient panelDmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab)
Part D prescribingMedicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab)
MIPS scores, telehealth, assignment and procedure percentilesDoctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab)
Industry paymentsOpen Payments (CMS) (opens in a new tab)
Training, board certification and membershipsDmand AI Professional Profile Data
EHR at each practice siteDmand AI Technology Install Data
Similar physiciansDmand AI Affiliation Data

Data last refreshed October 2026Report an inaccuracyRemove my information

FAQ

Frequently asked questions about Dr. John Gus Stagias

Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.

What is Dr. John Gus Stagias' NPI number?

Dr. John Gus Stagias' NPI number is 1023012424. It was assigned on June 13, 2005, and it is active in the NPI Registry.

What kind of doctor is Dr. John Gus Stagias?

Dr. John Gus Stagias is a gastroenterologist in Southbridge, Massachusetts. The primary specialty in the NPI Registry is Gastroenterology Physician (taxonomy code 207RG0100X).

Where does Dr. John Gus Stagias practice?

Dr. Stagias practices at 100 South Street, Southbridge, MA 01550. Dr. Stagias' primary practice is UMass Memorial Health - Harrington Hospital in Southbridge, Massachusetts, part of UMass Memorial Health Care. Dmand AI also links Dr. Stagias to 1 group practice or clinic and 1 medical group.

What is Dr. John Gus Stagias' office phone number?

The practice phone on file for Dr. Stagias is (508) 765-9771.

What is Dr. John Gus Stagias' medical license number?

Dr. Stagias holds Massachusetts license 80381.

Which hospitals is Dr. John Gus Stagias affiliated with?

Dr. Stagias practices at UMass Memorial Health - Harrington Hospital in Southbridge, Massachusetts.

What medical group is Dr. John Gus Stagias part of?

Dr. Stagias is linked to John G. Stagias, MD, PC. Dmand AI links Dr. Stagias to 1 more medical group.

Does Dr. John Gus Stagias accept Medicare?

Yes. CMS data shows Dr. Stagias billed Medicare for 836 services in 2024, and Dr. Stagias accepts Medicare assignment.

What is Dr. John Gus Stagias' MIPS score?

Dr. Stagias' MIPS final score for performance year 2024 is 79 out of 100, reported individually.

How many Medicare patients does Dr. John Gus Stagias see?

CMS counts 568 Medicare patients who saw Dr. Stagias in 2024, with an average age of 72.

Show 5 more questionsShow fewer questions

What services does Dr. John Gus Stagias bill to Medicare?

In 2024, Dr. Stagias' most billed Medicare services were office visit, established patient (99213), surgery: digestive system (45385) and surgery: digestive system (43239).

Where did Dr. John Gus Stagias go to medical school?

Dr. Stagias graduated from Albany Medical College of Union University in 1988.

What drugs does Dr. John Gus Stagias prescribe most?

In 2024 Medicare Part D data, Dr. Stagias' most prescribed drugs by claims were Omeprazole, Mesalamine and Diphenoxylate-Atropine.

Has Dr. John Gus Stagias received payments from drug or device companies?

CMS Open Payments shows $36,190 in general payments to Dr. Stagias from 24 companies from 2017 to 2025. The largest total came from Medtronic, Inc.

How long has Dr. John Gus Stagias been practicing?

Dr. Stagias graduated from medical school in 1988, 38 years ago.

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