DR. CATHERINE ANNE O'BRIEN (M.D.) – Hematology & Oncology Physician, NPI 1417994047
Hematology & Oncology Physician
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Profile Insights
NPPES metrics only — not quality of care.
171 HEMATOLOGY/ONCOLOGY in OR
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Provider Addresses for DR. CATHERINE ANNE O'BRIEN (M.D.)
875, Oak Street Southeast, Salem, Marion County, Oregon, 97301, United States
SUITE 4030
SALEM, OR 973013975
Phone: (503) 561-6449
Fax: (503) 561-6442
Type: Mailing
Willamette Valley Medical Center, 2700, Southeast Stratus Avenue, McMinnville, Yamhill County, Oregon, 97128, United States
SUITE A
MCMINNVILLE, OR 97128
Phone: (503) 435-6590
Fax: (503) 435-6591
Type: Location
NPPES updates history
No NPPES updates recorded for this provider.
Prescription Activity
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Open Payments (CMS)
CMS reports 22 Open Payments records for all available years, with a total value of $574.
Total Amount is formed as General ($574) + Research ($0) + Ownership ($0) = $574.
Last reported payment date: 2024-12-11 • Largest payer in this snapshot: Merck Sharp & Dohme LLC ($118).
Total Amount
$574
General + Research + Ownership
Payments
22
Total payment records
General Amount
$574
General payments
Research Amount
$0
Research funding
Ownership Amount
$0
Ownership interests
Ownership Count
0
Ownership records
Last Payment Date
2024-12-11
Latest reported date
Top Companies
Largest payers in this snapshot
| Company | Amount |
|---|---|
| Merck Sharp & Dohme LLC | $118 |
| Janssen Biotech, Inc. | $75 |
| PFIZER INC. | $68 |
| Kite Pharma, Inc. | $64 |
| Astellas Pharma US Inc | $35 |
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: 2006-07-18
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 |
|---|---|---|---|---|
| I20060718000043 | I | Hematology/Oncology | 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 |
|---|---|---|---|---|
| J1439 | Injection, ferric carboxymaltose, 1 mg | 21,000 | 15 | $0 |
| J9271 | Injection, pembrolizumab, 1 mg | 8,400 | 12 | $0 |
| J1453 | Injection, fosaprepitant, 1 mg | 6,150 | 13 | $0 |
| J0897 | Injection, denosumab, 1 mg | 2,040 | 11 | $0 |
| J1100 | Injection, dexamethasone sodium phosphate, 1 mg | 1,270 | 40 | $0 |
Insurance plans in this area (ZIP 97301)
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Provider's Procedures
| Specialty | Practice State | HCPCS Code | Description | Service Count | Beneficiary Count |
|---|---|---|---|---|---|
| HEMATOLOGY/ONCOLOGY | OR | 96367 | Infusion into a vein for therapy prevention or diagnosis additional sequential infusion up to 1 hour | 216 | 40 |
| HEMATOLOGY/ONCOLOGY | OR | 96375 | Injection of different drug or substance into a vein for therapy, diagnosis, or prevention | 298 | 45 |
Group practice members
| Name | Specialty | State |
|---|---|---|
| Nurse Practitioner | OR | |
| Physician Assistant | OR | |
| Rheumatology, Internal Medicine | OR | |
| Infectious Disease, Internal Medicine | WI | |
| Physician Assistant | OR | |
| H E M A T O L O G Y/ O N C O L O G Y | OR | |
| Internal Medicine, Infectious Disease | OR | |
| Nurse Practitioner | OR | |
| Physician Assistant | OR | |
| Nurse Practitioner | OR |
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