Doctor profile · Federal record

Dr. Catherine O'Brien, M.D.

Hematology & Oncology Physician (CMS: Hematology/Oncology) · McMinnville, OR

  • NPI 1417994047
  • Accepts Medicare
  • MIPS 83.0 / 100 · 2023
  • 26 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
2700 Se Stratus Ave., Suite A
McMinnville, OR 97128
(503) 435-6590
fax (503) 435-6591
Mailing address
875 Oak St Se, Suite 4030
Salem, OR 973013975

Credentials & registration

NPPES · NUCC
NPI registered
June 2006 — 20 yrs on file
Profile last updated
July 8, 2021
Year of graduation
2000 — 26 yrs since
Specialty taxonomy
207RH0003X — NUCC code
State license (1)
Oregon #MD25920
Medicaid
OR #005904

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1417994047. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
42,223
Distinct HCPCS
10
Medicare allowed
$671,326
HCPCS Description Services Patients Avg allowed
J1439 Injection, ferric carboxymaltose, 1 mg 21,000 15 $1
J9271 Injection, pembrolizumab, 1 mg 8,400 12 $54
J1453 Injection, fosaprepitant, 1 mg 6,150 13 $0
J0897 Injection, denosumab, 1 mg 2,040 11 $23
J1100 Injection, dexamethasone sodium phosphate, 1 mg 1,270 40 $0
J2405 Injection, ondansetron hydrochloride, per 1 mg 672 23 $0
99213 Established patient office or other outpatient visit, 20-29 minutes 579 280 $88
J2469 Injection, palonosetron hcl, 25 mcg 520 15 $1
96372 Injection of drug or substance under skin or into muscle 243 37 $14
96413 Administration of chemotherapy into vein, 1 hour or less 233 48 $127

In context: peer comparison

Among 1 peers in McMinnville Hematology & Oncology Physician, average services per provider: 1,563. This provider delivers 27× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$301
Transactions
12
Manufacturers
8
Payer (manufacturer) Industry Txns Amount
Merck Sharp & Dohme LLC 3 $95.67
Pfizer INC. 3 $68.44
Abbvie INC. 1 $34.26
Daiichi Sankyo INC. 1 $26.35
Taiho Oncology, INC. 1 $24.55
Gilead Sciences, INC. 1 $19.81
Kite Pharma, INC. 1 $18.00
Emd Serono, INC. 1 $13.75

By nature of payment

Food and Beverage
$301

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
909
Patients
223
Total drug cost
$1,594,681
Drug Type Claims Patients Total cost
Tamoxifen Citrate Generic 204 56 $6,138
Letrozole Generic 80 26 $1,889
Prednisone Generic 78 26 $530
Anastrozole Generic 70 22 $1,974
Eliquis (Apixaban) Brand 63 17 $45,401
Hydroxyurea Generic 61 15 $1,967
Mirtazapine Generic 56 17 $1,351
Calquence (Acalabrutinib Maleate) Brand 48 0 $880,229
Acyclovir Generic 43 0 $711
Abiraterone Acetate Generic 42 0 $110,190

Hospital affiliations

CMS Hospital Compare

Frequently asked questions

Auto-generated from federal data
What is Dr. Catherine O'Brien's medical specialty?
Dr. Catherine O'Brien practices Hematology & Oncology Physician in McMinnville, OR.
Where does Dr. Catherine O'Brien practice?
Dr. Catherine O'Brien practices at 2700 Se Stratus Ave., McMinnville, OR 97128. Office phone: 5034356590.
What is Dr. Catherine O'Brien's NPI?
Dr. Catherine O'Brien's National Provider Identifier (NPI) is 1417994047, issued by NPPES.
Does Dr. Catherine O'Brien accept Medicare assignment?
Yes. Dr. Catherine O'Brien accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Catherine O'Brien commonly perform?
Top Medicare-reported procedures in 2023: Injection, ferric carboxymaltose, 1 mg (HCPCS J1439); Injection, pembrolizumab, 1 mg (HCPCS J9271); Injection, fosaprepitant, 1 mg (HCPCS J1453). Source: CMS Medicare Physician & Other Practitioners file.