ANNA L. WALTON MD
NPI 1114389129
Obstetrics & Gynecology in Seattle, WA

Active since March 28, 2016PECOS Enrolled
1101 MADISON ST STE 950, SEATTLE, WA 98104(206) 682-5800(206) 233-9657 Get Directions Write a Review

NPPES record last updated: December 8, 2022. Verified against the NPPES registry weekly; last sync: October 25, 2026.

Record update history: Dec 8, 2022, Aug 14, 2020, Jun 21, 2016 and 1 more (4 updates tracked since 2016).

About Anna L. Walton Md NPPES

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

ANNA L. WALTON MD (NPI 1114389129) is an individual obstetrics & gynecology provider in Seattle, Washington, licensed in Washington (MD61076597) and active in the NPI registry since March 2016. She is enrolled in Medicare PECOS and maintains a secondary practice location in Bellevue.

NPPES Registry Identity

NPI1114389129
Entity TypeIndividualFemale
Primary Taxonomy207V00000X
Provider Legal NameANNA L. WALTONCredential: MD
Location Address1101 MADISON ST STE 950Seattle, WA 98104-3592
Mailing Address1101 Madison St Ste 950Seattle, WA 98104-3592 · (206) 682-5800 · Fax (206) 233-9657
Fax(206) 233-9657
Sole ProprietorNo
Enumeration DateMarch 28, 2016
Last NPPES UpdateDecember 8, 20224 updates tracked since enumeration
NPPES CertifiedDecember 8, 2022
✔ NPI 1114389129 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 · MD61076597
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.
1101 MADISON ST STE 950, Seattle, WA 98104

Secondary Practice Location 1

Location 111511 NE 10th StBellevue, WA 98004-8578 · Phone (425) 502-3000 · Fax (425) 502-4233

Other Identifiers 1

Medicaid2061024WA

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Anna L. Walton 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.

Medicare Billing Reassignments

2

Medicare enrollment records show Anna Walton reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Obstetrics & Gynecology
1101 MADISON ST STE 1150
Seattle, WA 98104
  • Reassigned Medicare billing, Washington enrollment
  • 589 clinicians in this Medicare group
Multi-Specialty
320 WESTLAKE AVE. N., SUITE 100
Seattle, WA 98109
  • Reassigned Medicare billing, Washington enrollment
  • 2,678 clinicians in this Medicare group

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 98104 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.

Other Providers at the Same Location NPPES 12

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

Nurse Practitioner (Women's Health)
1101 MADISON ST STE 950
SEATTLE, WA 98104
Nurse Practitioner (Obstetrics & Gynecology)
1101 MADISON ST STE 950
SEATTLE, WA 98104
Obstetrics & Gynecology
1101 MADISON ST STE 950
SEATTLE, WA 98104
Advanced Practice Midwife
1101 MADISON ST STE 950
SEATTLE, WA 98104
Obstetrics & Gynecology
1101 MADISON ST STE 950
SEATTLE, WA 98104
Obstetrics & Gynecology
1101 MADISON ST STE 950
SEATTLE, WA 98104
Obstetrics & Gynecology
1101 MADISON ST STE 950
SEATTLE, WA 98104
Obstetrics & Gynecology
1101 MADISON ST STE 950
SEATTLE, WA 98104

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 Anna Walton's NPI number?

The NPI number for Anna Walton is 1114389129. It was assigned to this individual provider in the NPPES registry on March 28, 2016.

Where is Anna Walton located?

Anna Walton practices at 1101 Madison St Ste 950, Seattle, WA 98104. The listed phone number is (206) 682-5800.

What is Anna Walton's specialty?

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

Is Anna Walton enrolled in Medicare?

Yes. Anna Walton is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Anna Walton's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Anna Walton reassigns Medicare benefits to 2 organizations: Proliance Surgeons, Inc., P.S. (Seattle, WA) and Kaiser Foundation Health Plan Of Washington (Seattle, WA). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Anna Walton's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Anna Walton was last updated on December 8, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 years 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.