DR. MARK C MASON (M.D.) – Surgery Physician, NPI 1336124510
Surgery Physician
Main info
Doctor Profile
Contacts
Profile Insights
NPPES metrics only — not quality of care.
530 GENERAL SURGERY in OR
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Provider Addresses for DR. MARK C MASON (M.D.)
3158, Southwest 87th Avenue, Portland, Metro, Washington County, Oregon, 97225, United States
PORTLAND, OR 972083158
Phone: (541) 732-7874
Fax: (541) 732-7875
Type: Mailing
1698, East McAndrews Road, Medford, Jackson County, Oregon, 97504, United States
SUITE 160
MEDFORD, OR 975045589
Phone: (541) 732-7874
Fax: (541) 732-7875
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 10 Open Payments records for all available years, with a total value of $459.
Total Amount is formed as General ($459) + Research ($0) + Ownership ($0) = $459.
Last reported payment date: 2024-11-06 • Largest payer in this snapshot: Intuitive Surgical, Inc. ($410).
Total Amount
$459
General + Research + Ownership
Payments
10
Total payment records
General Amount
$459
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-11-06
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Intuitive Surgical, Inc. | $410 |
| Solventum Corporation | $21 |
| Medtronic, Inc. | $15 |
| Microline Surgical Inc | $13 |
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: 2013-01-04
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 |
|---|---|---|---|---|
| I20130104000266 | I | General Surgery | OR | 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 | 102 | 101 | $0 |
| 45385 | Removal of polyps or growths of large bowel using an endoscope with mechanical snare | 87 | 86 | $0 |
| 99214 | Established patient office or other outpatient visit, 30-39 minutes | 45 | 39 | $0 |
| 99204 | New patient office or other outpatient visit, 45-59 minutes | 41 | 41 | $0 |
| 99232 | Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | 32 | 16 | $0 |
Insurance plans in this area (ZIP 97208)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| GENERAL SURGERY | OR | 45385 | Removal of polyps or growths of large bowel using an endoscope | 35 | 35 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| - | OR | |
| - | OR | |
| - | OR | |
| Internal Medicine, Critical Care (Intensivists) | OR | |
| - | OR | |
| Nurse Practitioner | OR | |
| - | OR | |
| Infectious Disease | NY | |
| Internal Medicine | OR | |
| - | OR |
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