MICHAEL C DUFFY (MD) – Gastroenterology Physician, NPI 1982693677
Gastroenterology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
648 GASTROENTEROLOGY in MI
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Provider Addresses for MICHAEL C DUFFY (MD)
264, West Maple Road, Troy, Oakland County, Michigan, 48084, United States
#200
TROY, MI 480845435
Phone: (248) 273-9930
Fax: (248) 273-9931
Mailing address matches the actual address.
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 26 Open Payments records for all available years, with a total value of $841.
Total Amount is formed as General ($841) + Research ($0) + Ownership ($0) = $841.
Last reported payment date: 2024-09-26 • Largest payer in this snapshot: ABBVIE INC. ($188).
Total Amount
$841
General + Research + Ownership
Payments
26
Total payment records
General Amount
$841
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-09-26
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ABBVIE INC. | $188 |
| Janssen Biotech, Inc. | $179 |
| E.R. Squibb & Sons, L.L.C. | $122 |
| GENZYME CORPORATION | $70 |
| Celgene Corporation | $38 |
Medicare Enrollment & Revalidation
Source: CMS public data · Not endorsed by CMS ·
Educational use only—not medical, billing, or legal advice.
PECOS enrollment status
Participating (accepts Medicare assignment)
Enrollment effective: 2010-03-19
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking this Medicare enrollment for revalidation, but has not published a due date.
Enrollment records
1
Earliest due date
Not assigned (TBD)
CMS data updated
2026-06-01
Revalidation progress
- Medicare enrolled
- On CMS revalidation list
- Due date assigned
- Revalidate in PECOS
CMS enrollment records
| Enrollment ID | Type | Specialty | State | Due date |
|---|---|---|---|---|
| I20100319000476 | I | Gastroenterology | MI | TBD |
What to do next
- No action required while the due date shows TBD.
- Check the CMS Revalidation Lookup Tool periodically — CMS updates the list about every 60 days.
- Do not submit a revalidation application in PECOS until CMS publishes a concrete due date.
Prepare CMS-855 application → · Look up this NPI in PECOS → · Verify on CMS PECOS
Medicare Utilization (FFS)
Source: CMS public data · Not endorsed by CMS · Beneficiary counts under 11 are suppressed in source data ·
Educational use only—not medical, billing, or legal advice.
Top Medicare procedures (2023) · refreshed 2026-05-27
| HCPCS | Description | Services | Beneficiaries | Medicare allowed |
|---|---|---|---|---|
| 88305 | Pathology examination of tissue using a microscope, intermediate complexity | 527 | 286 | $0 |
| 99213 | Established patient office or other outpatient visit, 20-29 minutes | 268 | 220 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 156 | 130 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 99 | 54 | $0 |
| 43239 | Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 96 | 95 | $0 |
Insurance plans in this area (ZIP 48084)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| GASTROENTEROLOGY | MI | 43235 | Diagnostic examination of esophagus, stomach, and/or upper small bowel using an endoscope | 25 | 25 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | MI | |
| Hematology/Oncology, Internal Medicine | MI | |
| P S Y C H I A T R Y | MI | |
| - | MI | |
| Internal Medicine, Cardiovascular Disease (Cardiology) | MI | |
| Interventional Cardiology, Cardiovascular Disease (Cardiology) | MI | |
| - | MI | |
| - | MI | |
| - | MI | |
| - | MI |
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