CHRISTINE SHIEH MD
NPI 1013414465
Internal Medicine - Gastroenterology in Walnut Creek, CA
About Christine Shieh Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CHRISTINE SHIEH MD (NPI 1013414465) is an individual gastroenterology provider in Walnut Creek, California, licensed in California (A174339) and active in the NPI registry since April 2018. She is enrolled in Medicare PECOS and is a graduate of University Of California, Geffen School Of Medicine (2018).
NPPES Registry Identity
Specialties & Licenses
Group Practice 1
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
Christine Shieh 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
2Medicare enrollment records show Christine Shieh reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Walnut Creek, CA 94597
- Reassigned Medicare billing, California enrollment
- 650 clinicians in this Medicare group
Richmond, CA 94801
- Reassigned Medicare billing, California enrollment
- 20,078 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 94598 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 5
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
WALNUT CREEK, CA 94598
WALNUT CREEK, CA 94598
WALNUT CREEK, CA 94598
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 Christine Shieh's NPI number?
The NPI number for Christine Shieh is 1013414465. It was assigned to this individual provider in the NPPES registry on April 11, 2018.
Where is Christine Shieh located?
Christine Shieh practices at 1479 Ygnacio Valley Rd Ste 150, Walnut Creek, CA 94598. The listed phone number is (925) 296-7340.
What is Christine Shieh's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Christine Shieh enrolled in Medicare?
Yes. Christine Shieh 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 Christine Shieh's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Christine Shieh reassigns Medicare benefits to 2 organizations: John Muir Physician Network (Walnut Creek, CA) and Permanente Medical Group Inc (Richmond, CA). 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 Christine Shieh'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 Christine Shieh was last updated on June 24, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 months 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.
# Christine Shieh, MD · NPI 1013414465
Gastroenterology physician in Walnut Creek, California. Individual provider, active in the CMS NPPES registry since April 11, 2018.
## Identity
- **NPI:** 1013414465 (Entity type: Individual)
- **Enumerated:** April 11, 2018
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **State license:** A174339 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 1479 YGNACIO VALLEY RD STE 150, Walnut Creek, CA 94598-2954
- **Phone:** (925) 296-7340
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): John Muir Physician Network (NPI 1841407665, Walnut Creek, CA); Permanente Medical Group Inc (NPI 1235226531, Richmond, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of California, Geffen School Of Medicine, class of 2018
## Record status
- **NPPES last updated:** June 24, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1013414465) · Data from the CMS NPPES public registry.