DR. JOSEPH E CASSARA (M.D.) – Gastroenterology Physician, NPI 1275755290
Gastroenterology Physician
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Doctor Profile
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Profile Insights
NPPES metrics only — not quality of care.
369 GASTROENTEROLOGY in CO
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Provider Addresses for DR. JOSEPH E CASSARA (M.D.)
Kaiser Permanente, 2500, South Havana Street, Aurora, Arapahoe County, Colorado, 80014, United States
AURORA, CO 800141618
Phone: (303) 338-4545
Type: Mailing
KP Drop Off, 280, Exempla Circle, Lafayette, Boulder County, Colorado, 80026-2872, United States
LAFAYETTE, CO 800263370
Phone: (303) 338-4545
Type: Location
15539 W 75TH PL
ARVADA, CO 800077957
Phone:
Type: Mailing
1000 W SOUTH BOULDER RD
LAFAYETTE, CO 800262752
Phone: (303) 604-5000
Type: Location
10350 E DAKOTA AVE
DENVER, CO 802471314
Phone:
Type: Mailing
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 127 Open Payments records for all available years, with a total value of $2,675.
Total Amount is formed as General ($2,675) + Research ($0) + Ownership ($0) = $2,675.
Last reported payment date: 2024-12-20 • Largest payer in this snapshot: ABBVIE INC. ($640).
Total Amount
$2,675
General + Research + Ownership
Payments
127
Total payment records
General Amount
$2,675
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-20
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| ABBVIE INC. | $640 |
| Takeda Pharmaceuticals U.S.A., Inc. | $378 |
| Gilead Sciences, Inc. | $263 |
| Janssen Biotech, Inc. | $253 |
| GENZYME CORPORATION | $211 |
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: 2008-10-21
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 |
|---|---|---|---|---|
| I20081021000774 | 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 |
|---|---|---|---|---|
| 45385 | Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 131 | 127 | $0 |
| 43239 | Biopsy of esophagus, stomach, and/or upper small bowel using a flexible endoscope | 127 | 118 | $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 | 90 | 88 | $0 |
| 45380 | Biopsy of large bowel using a flexible endoscope | 64 | 63 | $0 |
| 99153 | Use of a drug to induce depression of consciousness by physician performing a procedure, each additional 15 minutes | 38 | 30 | $0 |
Insurance plans in this area (ZIP 80014)
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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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