MRS. DOROTHY ELIZABETH WALKER NNP
NPI 1265709034
Nurse Practitioner - Neonatal in San Francisco, CA
About Mrs. Dorothy Elizabeth Walker Nnp NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MRS. DOROTHY ELIZABETH WALKER NNP (NPI 1265709034) is an individual neonatal provider in San Francisco, California, licensed in Missouri (2026028085) and active in the NPI registry since November 2011. She is enrolled in Medicare PECOS and maintains 5 additional practice locations.
NPPES Registry Identity
Specialties & Licenses 2
Secondary Practice Locations 5
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)
Mrs. Dorothy Elizabeth Walker Nnp is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
4Medicare enrollment records show Dorothy Walker reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Amarillo, TX 79106
- Reassigned Medicare billing, Texas enrollment
- 109 clinicians in this Medicare group
Fort Worth, TX 76104
- Reassigned Medicare billing, Texas enrollment
- 985 clinicians in this Medicare group
Waco, TX 76712
- Reassigned Medicare billing, Texas enrollment
- 184 clinicians in this Medicare group
Tyler, TX 75702
- Reassigned Medicare billing, Texas enrollment
- 2,745 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 94143 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
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
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 Dorothy Walker's NPI number?
The NPI number for Dorothy Walker is 1265709034. It was assigned to this individual provider in the NPPES registry on November 22, 2011.
Where is Dorothy Walker located?
Dorothy Walker practices at 1825 4th St # 6, San Francisco, CA 94143. The listed phone number is (415) 353-3000.
What is Dorothy Walker's specialty?
The primary specialty registered for this NPI is Nurse Practitioner, specializing in Neonatal, with taxonomy code 363LN0000X.
Is Dorothy Walker enrolled in Medicare?
Yes. Dorothy Walker is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Dorothy Walker's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Dorothy Walker reassigns Medicare benefits to 4 organizations: Texas Tech University Health Sciences Center Amarillo (Amarillo, TX), Acclaim Physician Group, Inc (Fort Worth, TX), Hillcrest Physician Services (Waco, TX) and Christus Trinity Clinic Texas (Tyler, TX). 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 Dorothy Walker's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Dorothy Walker accept?
Health plans from Baylor Scott and White Health Plan, Blue Cross and Blue Shield of Kansas City, Blue Cross and Blue Shield of Texas and CHRISTUS Health Plan list Dorothy 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 Dorothy Walker was last updated on September 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 38 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.
# Mrs. Dorothy Elizabeth Walker, NNP · NPI 1265709034
Neonatal physician in San Francisco, California. Individual provider, active in the CMS NPPES registry since November 22, 2011.
## Identity
- **NPI:** 1265709034 (Entity type: Individual)
- **Enumerated:** November 22, 2011
- **Primary specialty:** Nurse Practitioner - Neonatal · taxonomy 363LN0000X
- **State license:** 2026028085 (Missouri)
- **Sole proprietor:** No
## Practice location
- **Address:** 1825 4TH ST # 6, San Francisco, CA 94143-2350
- **Phone:** (415) 353-3000
## 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:** 4 organizations under Medicare reassignment (form CMS-855R): Texas Tech University Health Sciences Center Amarillo (NPI 1013942150, Amarillo, TX); Acclaim Physician Group, Inc (NPI 1780076562, Fort Worth, TX); Hillcrest Physician Services (NPI 1649294323, Waco, TX); Christus Trinity Clinic Texas (NPI 1285684225, Tyler, TX) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** September 25, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1265709034) · Data from the CMS NPPES public registry.