KATHERINE ANN PLUMMER MD
NPI 1811837438
Obstetrics & Gynecology in Seattle, WA

Q: What is Katherine Plummer's NPI number?

The NPI number for Katherine Plummer is 1811837438. It was assigned to this individual provider in the NPPES registry on March 31, 2026.

Q: What is Katherine Plummer's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Q: When was this NPI record last updated?

The NPPES record for Katherine Plummer was last updated on June 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 44 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since March 31, 2026PECOS Enrolled

747 BROADWAY, SEATTLE, WA 98122(206) 386-6000 Get Directions Write a Review

NPPES record last updated: June 22, 2026. Verified against the NPPES registry weekly; last sync: August 02, 2026.

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About Katherine Ann Plummer Md NPPES

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

KATHERINE ANN PLUMMER MD (NPI 1811837438) is an individual obstetrics & gynecology provider in Seattle, Washington, licensed in Washington (MDRE.ML.70120911) and active in the NPI registry since March 2026. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1811837438

Entity TypeIndividualFemale

Primary Taxonomy207V00000X

Provider Legal NameKATHERINE ANN PLUMMERCredential: MD

Location Address747 BROADWAYSeattle, WA 98122-4379

Mailing Address747 BroadwaySeattle, WA 98122-4379 · (206) 386-6000

Phone(206) 386-6000

Sole ProprietorNo

Enumeration DateMarch 31, 2026

Last NPPES UpdateJune 22, 2026

NPPES CertifiedJune 22, 2026

✔ NPI 1811837438 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyObstetrics & GynecologyAllopathic & Osteopathic Physicians

Taxonomy Code207V00000X

License✔ Licensed in WA · MDRE.ML.70120911

Definition

An obstetrician/gynecologist possesses special knowledge, skills and professional capability in the medical and surgical care of the female reproductive system and associated disorders. This physician serves as a consultant to other physicians and as a primary physician for women.

747 BROADWAY, Seattle, WA 98122

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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)

Katherine Ann Plummer Md 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 98122 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

$143.76 typical visit price

range $63.67 – $189.37

Typical copayment $35.94 (range $15.91 – $47.34)

Most-billed visit code 99204

Established Patient

$78.74 typical visit price

range $21.12 – $155.00

Typical copayment $19.68 (range $5.28 – $38.75)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

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Other Providers at the Same Location NPPES 20

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

ASHLEY NICOLE WILSON PHARMD.

Pharmacist

747 BROADWAY, ATTN: INPATIENT PHARMACY
SEATTLE, WA 98122

King County (206) 215-6283

MOHAMMAD IFFAT KABIR ANINDO MD

Internal Medicine

747 BROADWAY
SEATTLE, WA 98122

King County (206) 215-2520

DR. RICHARD KADERA MD

Hospitalist

747 BROADWAY
SEATTLE, WA 98122

King County (206) 215-2520

ROBERT C HANSEN MD

Hospitalist

747 BROADWAY
SEATTLE, WA 98122

King County (206) 215-2520

DR. ELIZABETH JEAN POTTER MD

Internal Medicine

747 BROADWAY
SEATTLE, WA 98122

King County (206) 215-2520

MR. BOBBY WALKER HOLLOWELL CPHT

Pharmacy Technician

747 BROADWAY
SEATTLE, WA 98122

King County (206) 386-6150

JOHN CAMPBELL MD

Radiology (Vascular & Interventional Radiology)

747 BROADWAY, HEATH BUILDING 10TH FLOOR
SEATTLE, WA 98122

King County (206) 215-4253

DAVID ROMANET PHARMD

Pharmacist

747 BROADWAY
SEATTLE, WA 98122

King County (602) 312-2220

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 Plummer's NPI number?

The NPI number for Katherine Plummer is 1811837438. It was assigned to this individual provider in the NPPES registry on March 31, 2026.

Where is Katherine Plummer located?

Katherine Plummer practices at 747 Broadway, Seattle, WA 98122. The listed phone number is (206) 386-6000.

What is Katherine Plummer's specialty?

The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.

Is Katherine Plummer enrolled in Medicare?

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

When was this NPI record last updated?

The NPPES record for Katherine Plummer was last updated on June 22, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 44 days ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.