MICHAEL V CHIOREAN (MD) – Gastroenterology Physician, NPI 1578527099
Gastroenterology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
474 GASTROENTEROLOGY in WA
Provider Addresses for MICHAEL V CHIOREAN (MD)
PO BOX 25608
SALT LAKE CITY, UT 841250608
Phone: (206) 320-4476
Fax: (206) 568-7043
Type: Mailing
751 NE BLAKELY DR STE 3020
ISSAQUAH, WA 980296201
Phone: (425) 313-5345
Fax: (425) 313-4704
Type: Location
Virginia Mason Hospital & Seattle Medical Center, 1100, 9th Avenue, Central Business District, First Hill, Seattle, King County, Washington, 98101, United States
MS:M4-PFS
SEATTLE, WA 981012756
Phone: (206) 515-5811
Fax: (206) 515-5886
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 506 Open Payments records for all available years, with a total value of $549,320.
Total Amount is formed as General ($527,200) + Research ($22,120) + Ownership ($0) = $549,320.
Last reported payment date: 2024-12-18 • Largest payer in this snapshot: ABBVIE INC. ($190,806).
Total Amount
$549,320
General + Research + Ownership
Payments
506
Total payment records
General Amount
$527,200
General payments
Research Amount
$22,120
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-18
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ABBVIE INC. | $190,806 |
| PFIZER INC. | $124,942 |
| E.R. Squibb & Sons, L.L.C. | $69,952 |
| Lilly USA, LLC | $54,957 |
| Janssen Biotech, Inc. | $34,579 |
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: 2025-12-24
PECOS data refreshed: 2026-05-27
Medicare revalidation (CMS due date list)
Due date not assigned yet
CMS is tracking 2 Medicare enrollment records; no due dates published yet.
Enrollment records
2
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 |
|---|---|---|---|---|
| I20121023000794 | I | Gastroenterology | WA | TBD |
| I20251224001115 | 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 |
|---|---|---|---|---|
| 45385 | Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 72 | 72 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 47 | 38 | $0 |
| 99203 | New patient office or other outpatient visit, 30-44 minutes | 28 | 28 | $0 |
| 45380 | Biopsy of large bowel using a flexible endoscope | 20 | 20 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 17 | 17 | $0 |
Insurance plans in this area (ZIP 84125)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| GASTROENTEROLOGY | WA | 43235 | Diagnostic examination of esophagus, stomach, and/or upper small bowel using an endoscope | 21 | 21 |
| GASTROENTEROLOGY | WA | 45378 | Diagnostic examination of large bowel using an endoscope | 12 | 12 |
| GASTROENTEROLOGY | WA | 45385 | Removal of polyps or growths of large bowel using an endoscope | 69 | 69 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Clinical Social Worker | WA | |
| Internal Medicine | MA | |
| - | WA | |
| - | WA | |
| Hematology, Internal Medicine | WA | |
| - | WA | |
| - | WA | |
| - | WA | |
| - | WA | |
| - | FL |
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