Doctor profile · Federal record

Dr. Katherine Tierney, M.D.

Gynecologic Oncology Physician · Obstetrics & Gynecology Physician · Obstetrics & Gynecology Physician · Los Angeles, CA

  • NPI 1669702502
  • 17 yrs on file
  • Licensed in 2 states
  • Female
  • Group practice
  • No sanctions

Practice & contact

NPPES Updated May 11, 2026
Primary practice
1516 San Pablo St Fl 3
Los Angeles, CA 900335313
(323) 276-3705
Mailing address
Po Box 31309
Los Angeles, CA 900310309

Credentials & registration

NPPES · NUCC
NPI registered
December 2009 — 17 yrs on file
Profile last updated
February 13, 2025
Specialty taxonomy
207VX0201X — NUCC code
State licenses (2)
California #A110278 · Washington #MD60688841

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1669702502. Last verified May 11, 2026.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$141
Transactions
2
Manufacturers
2
Payer (manufacturer) Industry Txns Amount
GlaxoSmithKline, LLC. 1 $125.00
Corium, LLC 1 $16.22

By nature of payment

Food and Beverage
$141

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
21
Patients
18
Total drug cost
$136
Drug Type Claims Patients Total cost
Oxycodone Hcl Generic 21 18 $136

Frequently asked questions

Auto-generated from federal data
What is Dr. Katherine Tierney's medical specialty?
Dr. Katherine Tierney practices Gynecologic Oncology Physician in Los Angeles, CA.
Where does Dr. Katherine Tierney practice?
Dr. Katherine Tierney practices at 1516 San Pablo St Fl 3, Los Angeles, CA 900335313. Office phone: 3232763705.
What is Dr. Katherine Tierney's NPI?
Dr. Katherine Tierney's National Provider Identifier (NPI) is 1669702502, issued by NPPES.