DR. MARTIN PURDON RORY WALKER MD
NPI 1730132622
Obstetrics & Gynecology - Maternal & Fetal Medicine in Bellevue, WA
About Dr. Martin Purdon Rory Walker Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. MARTIN PURDON RORY WALKER MD (NPI 1730132622) is an individual maternal & fetal medicine provider in Bellevue, Washington, licensed in Washington (MD36346) and active in the NPI registry since May 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Martin Purdon Rory Walker Md is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
5Medicare enrollment records show Martin Walker reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Seattle, WA 98105
- Reassigned Medicare billing, Washington enrollment
- Medicare enrollment name: Seattle Childrens Hospital
- 912 clinicians in this Medicare group
Seattle, WA 98105
- Reassigned Medicare billing, Washington enrollment
- Medicare enrollment name: The Association Of Chrmc And University Physicians
- 1,443 clinicians in this Medicare group
Seattle, WA 98104
- Reassigned Medicare billing, Washington enrollment
- 129 clinicians in this Medicare group
Seattle, WA 98104
- Reassigned Medicare billing, Washington enrollment
- 4,364 clinicians in this Medicare group
Denver, CO 80218
- Reassigned Medicare billing, Colorado enrollment
- 118 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 98004 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
BELLEVUE, WA 98004
BELLEVUE, WA 98004
BELLEVUE, WA 98004
BELLEVUE, WA 98004
BELLEVUE, WA 98004
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 Martin Walker's NPI number?
The NPI number for Martin Walker is 1730132622. It was assigned to this individual provider in the NPPES registry on May 19, 2006.
Where is Martin Walker located?
Martin Walker practices at 1135 116th Ave NE Suite 320, Bellevue, WA 98004. The listed phone number is (425) 688-8111.
What is Martin Walker's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology, specializing in Maternal & Fetal Medicine, with taxonomy code 207VM0101X.
Is Martin Walker enrolled in Medicare?
Yes. Martin Walker is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Martin Walker's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Martin Walker reassigns Medicare benefits to 5 organizations: Seattle Children's Hospital (Seattle, WA), Association Of Chmc And University Physicians (Seattle, WA), Obstetrix Medical Group Of Washington Inc Ps (Seattle, WA), The Association Of University Physicians (Seattle, WA) and Obstetrix Medical Group Of Colorado P C (Denver, CO). 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 Martin Walker's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Martin Walker accept?
Health plans from Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Martin Walker as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.
When was this NPI record last updated?
The NPPES record for Martin Walker was last updated on February 3, 2010. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 16 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.
# Dr. Martin Purdon Rory Walker, MD · NPI 1730132622
Maternal & Fetal Medicine physician in Bellevue, Washington. Individual provider, active in the CMS NPPES registry since May 19, 2006.
## Identity
- **NPI:** 1730132622 (Entity type: Individual)
- **Enumerated:** May 19, 2006
- **Primary specialty:** Obstetrics & Gynecology - Maternal & Fetal Medicine · taxonomy 207VM0101X
- **State license:** MD36346 (Washington)
- **Sole proprietor:** No
## Practice location
- **Address:** 1135 116TH AVE NE, SUITE 320, Bellevue, WA 98004-4623
- **Phone:** (425) 688-8111 · **Fax:** (425) 688-8110
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 5 organizations under Medicare reassignment (form CMS-855R): Seattle Children's Hospital (NPI 1003319500, Seattle, WA); Association Of Chmc And University Physicians (NPI 1649497827, Seattle, WA); Obstetrix Medical Group Of Washington Inc Ps (NPI 1861599573, Seattle, WA); The Association Of University Physicians (NPI 1023041159, Seattle, WA); Obstetrix Medical Group Of Colorado P C (NPI 1700983103, Denver, CO) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** February 3, 2010
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Source: [NPI Profile](https://npiprofile.com/npi/1730132622) · Data from the CMS NPPES public registry.