DR. MATTHEW W KAROWE (M.D.) – Gastroenterology Physician, NPI 1851310478
Gastroenterology Physician
Main info
Doctor Profile
Profile Insights
NPPES metrics only — not quality of care.
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Provider Addresses for DR. MATTHEW W KAROWE (M.D.)
382, South Arthur Avenue, Colorado Tech Center, Louisville, Boulder County, Colorado, 80027, United States
LOUISVILLE, CO 800273094
Phone: (303) 604-5000
Fax: (720) 890-0364
Type: Mailing
Reynolds Family Medical Building, 1755, 48th Street, Boulder, Boulder County, Colorado, 80303-1229, United States
SUITE 100
BOULDER, CO 803012711
Phone: (303) 604-5000
Fax: (720) 890-0364
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 25 Open Payments records for all available years, with a total value of $516.
Total Amount is formed as General ($516) + Research ($0) + Ownership ($0) = $516.
Last reported payment date: 2024-06-29 • Largest payer in this snapshot: ABBVIE INC. ($193).
Total Amount
$516
General + Research + Ownership
Payments
25
Total payment records
General Amount
$516
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-06-29
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ABBVIE INC. | $193 |
| Gilead Sciences, Inc. | $129 |
| Celgene Corporation | $119 |
| Regeneron Healthcare Solutions, Inc. | $28 |
| Janssen Biotech, Inc. | $24 |
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: 2010-12-29
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 |
|---|---|---|---|---|
| I20101229000417 | I | Gastroenterology | CO | 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 |
|---|---|---|---|---|
| 45380 | Biopsy of large bowel using a flexible endoscope | 202 | 201 | $0 |
| G0500 | Moderate sedation services provided by the same physician or other qualified health care professional performing a gastrointestinal endoscopic service that sedation supports, requiring the presence of an independent trained observer to assist in the monito | 166 | 164 | $0 |
| 45385 | Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 103 | 102 | $0 |
| 43239 | Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 95 | 93 | $0 |
| 99153 | Use of a drug to induce depression of consciousness by physician performing a procedure, each additional 15 minutes | 89 | 76 | $0 |
Insurance plans in this area (ZIP 80027)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| GASTROENTEROLOGY | CO | 45385 | Removal of polyps or growths of large bowel using an endoscope | 109 | 109 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Internal Medicine, Gastroenterology | CO | |
| Physician Assistant | VA | |
| Physician Assistant | CO | |
| G A S T R O E N T E R O L O G Y | IL | |
| - | CO | |
| G A S T R O E N T E R O L O G Y | PA | |
| Gastroenterology, Internal Medicine | CO | |
| Physician Assistant | CO | |
| G A S T R O E N T E R O L O G Y | CO | |
| G A S T R O E N T E R O L O G Y | CO |
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