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DR. KATHERINE E TIERNEY M.D.
NPI 1669702502
Obstetrics & Gynecology - Gynecologic Oncology in Los Angeles, CA

Active since December 26, 2009PECOS Enrolled
1516 SAN PABLO ST FL 3, LOS ANGELES, CA 90033(323) 276-3705 Get Directions Write a Review

NPPES record last updated: February 13, 2025. Verified against the NPPES registry weekly; last sync: July 26, 2026.

Record update history: Feb 13, 2025, Feb 4, 2022, Jun 16, 2021 (3 updates tracked since 2021).

About Dr. Katherine E Tierney M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. KATHERINE E TIERNEY M.D. (NPI 1669702502) is an individual gynecologic oncology provider in Los Angeles, California, licensed in California (A110278) and active in the NPI registry since December 2009. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1669702502
Entity TypeIndividualFemale
Primary Taxonomy207VX0201X
Provider Legal NameDR. KATHERINE E TIERNEYCredential: M.D.
Location Address1516 SAN PABLO ST FL 3Los Angeles, CA 90033-5313
Mailing AddressPo Box 31309Los Angeles, CA 90031-0309 · (626) 457-6601
Phone(323) 276-3705
Sole ProprietorNo
Enumeration DateDecember 26, 2009
Last NPPES UpdateFebruary 13, 20253 updates tracked since enumeration
NPPES CertifiedFebruary 13, 2025
✔ NPI 1669702502 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

★ Primary SpecialtyObstetrics & Gynecology · Gynecologic OncologyAllopathic & Osteopathic Physicians
Taxonomy Code207VX0201X
License✔ Licensed in CA · A110278
Definition

An obstetrician/gynecologist who provides consultation and comprehensive management of patients with gynecologic cancer, including those diagnostic and therapeutic procedures necessary for the total care of the patient with gynecologic cancer and resulting complications.

Also ListedObstetrics & GynecologyTaxonomy 207V00000X · License A110278 (CA), MD60688841 (WA)
1516 SAN PABLO ST FL 3, Los Angeles, CA 90033
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Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Katherine E Tierney M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 90033 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$187.60 typical visit price
range $62.96 – $187.60
Typical copayment $46.90 (range $15.74 – $46.90)
Most-billed visit code 99205
Established Patient
$109.96 typical visit price
range $20.84 – $153.61
Typical copayment $27.49 (range $5.21 – $38.40)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 4

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

ANNA ELIZABETH REINERT M.D.
Obstetrics & Gynecology
1516 SAN PABLO ST FL 3
LOS ANGELES, CA 90033
Los Angeles County (323) 276-3705
DR. MONICA NEUMAN MD
Obstetrics & Gynecology (Gynecologic Oncology)
1516 SAN PABLO ST FL 3
LOS ANGELES, CA 90033
Los Angeles County (323) 276-3705
XIAOYUE MONA GUO MD
Obstetrics & Gynecology (Gynecologic Oncology)
1516 SAN PABLO ST FL 3
LOS ANGELES, CA 90033
Los Angeles County (323) 276-3705
TANAZ R. FERZANDI M.D., M.A.
Obstetrics & Gynecology (Urogynecology and Reconstructive Pelvic Surgery)
1516 SAN PABLO ST FL 3
LOS ANGELES, CA 90033
Los Angeles County (323) 276-3705

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Katherine Tierney's NPI number?

The NPI number for Katherine Tierney is 1669702502. It was assigned to this individual provider in the NPPES registry on December 26, 2009.

Where is Katherine Tierney located?

Katherine Tierney practices at 1516 San Pablo St Fl 3, Los Angeles, CA 90033. The listed phone number is (323) 276-3705.

What is Katherine Tierney's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Gynecologic Oncology, with taxonomy code 207VX0201X.

Is Katherine Tierney enrolled in Medicare?

Yes. Katherine Tierney is registered in the Medicare PECOS enrollment system.

When was this NPI record last updated?

The NPPES record for Katherine Tierney was last updated on February 13, 2025. NPI Profile syncs with the weekly NPPES data releases published by CMS.