DR. ELIZABETH ANNE WALKER MD
NPI 1982896841
Obstetrics & Gynecology in Irvine, CA
About Dr. Elizabeth Anne Walker Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ELIZABETH ANNE WALKER MD (NPI 1982896841) is an individual obstetrics & gynecology provider in Irvine, California, licensed in California (C171393) and active in the NPI registry since August 2007. She is enrolled in Medicare PECOS, maintains a secondary practice location in Lone Tree, and is a graduate of University Of Cincinnati College Of Medicine (2004).
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Secondary Practice Location 1
Other Identifiers 2
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Dr. Elizabeth Anne Walker Md is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Medicare Billing Reassignments
3Medicare enrollment records show Elizabeth Walker reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
San Diego, CA 92111
- Reassigned Medicare billing, California enrollment
- 1,233 clinicians in this Medicare group
Denver, CO 80247
- Reassigned Medicare billing, Colorado enrollment
- Medicare enrollment name: Colorado Permanente Medical Group PC
- 1,715 clinicians in this Medicare group
Greenville, SC 29607
- Reassigned Medicare billing, California enrollment
- Medicare enrollment name: Obhg California PC
- 711 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 92618 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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 Elizabeth Walker's NPI number?
The NPI number for Elizabeth Walker is 1982896841. It was assigned to this individual provider in the NPPES registry on August 15, 2007. The provider is also known as Beth Anne Walker.
Where is Elizabeth Walker located?
Elizabeth Walker practices at 16200 Sand Canyon Ave Bldg 230, Irvine, CA 92618. The listed phone number is (949) 764-6843.
What is Elizabeth Walker's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Elizabeth Walker enrolled in Medicare?
Yes. Elizabeth Walker is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
Which organizations bill Medicare for Elizabeth Walker's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Elizabeth Walker reassigns Medicare benefits to 3 organizations: Sharp Rees-Stealy Medical Group, Inc (San Diego, CA), Colorado Permanente Medical Group, P.C. (Denver, CO) and Obhg California, P.C. (Greenville, SC). 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 Elizabeth Walker'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 Elizabeth Walker was last updated on October 25, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 8 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.
# Dr. Elizabeth Anne Walker, MD · NPI 1982896841
Obstetrics & Gynecology physician in Irvine, California. Individual provider, active in the CMS NPPES registry since August 15, 2007.
## Identity
- **NPI:** 1982896841 (Entity type: Individual)
- **Enumerated:** August 15, 2007
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** C171393 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 16200 SAND CANYON AVE BLDG 230, Irvine, CA 92618-3714
- **Phone:** (949) 764-6843
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 3 organizations under Medicare reassignment (form CMS-855R): Sharp Rees-Stealy Medical Group, Inc (NPI 1285616177, San Diego, CA); Colorado Permanente Medical Group, P.C. (NPI 1760599724, Denver, CO); Obhg California, P.C. (NPI 1215258892, Greenville, SC) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Cincinnati College Of Medicine, class of 2004
## Record status
- **NPPES last updated:** October 25, 2026
- **Other identifiers:** Medicaid 43053882 (CO); Other 021888 (CO)
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Source: [NPI Profile](https://npiprofile.com/npi/1982896841) · Data from the CMS NPPES public registry.