OMAR AL-SHUWAYKH M.D
NPI 1275967143
Internal Medicine - Gastroenterology in Walnut Creek, CA
About Omar Al-shuwaykh M.d NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
OMAR AL-SHUWAYKH M.D (NPI 1275967143) is an individual gastroenterology provider in Walnut Creek, California, licensed in California (A139572) and active in the NPI registry since August 2013. He is enrolled in Medicare PECOS and is a graduate of Other (2010).
NPPES Registry Identity
Specialties & Licenses
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
Omar Al-shuwaykh M.d 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
5Medicare enrollment records show Omar Al-shuwaykh reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Walnut Creek, CA 94598
- Reassigned Medicare billing, California enrollment
- 810 clinicians in this Medicare group
Walnut Creek, CA 94597
- Reassigned Medicare billing, California enrollment
- 650 clinicians in this Medicare group
Walnut Creek, CA 94598
- Reassigned Medicare billing, California enrollment
- 347 clinicians in this Medicare group
Richmond, CA 94801
- Reassigned Medicare billing, California enrollment
- 20,078 clinicians in this Medicare group
Apple Valley, CA 92307
- Reassigned Medicare billing, California enrollment
- 914 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 94596 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
Reported Quality Measures
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.
WALNUT CREEK, CA 94596
WALNUT CREEK, CA 94596
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 Omar Al-shuwaykh's NPI number?
The NPI number for Omar Al-shuwaykh is 1275967143. It was assigned to this individual provider in the NPPES registry on August 28, 2013.
Where is Omar Al-shuwaykh located?
Omar Al-shuwaykh practices at 1425 S Main St, Walnut Creek, CA 94596. The listed phone number is (925) 295-5758.
What is Omar Al-shuwaykh's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Gastroenterology, with taxonomy code 207RG0100X.
Is Omar Al-shuwaykh enrolled in Medicare?
Yes. Omar Al-shuwaykh 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 Omar Al-shuwaykh's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Omar Al-shuwaykh reassigns Medicare benefits to 5 organizations: John Muir Trauma Physicians Billing Service (Walnut Creek, CA), John Muir Physician Network (Walnut Creek, CA), Bass Medical Group (Walnut Creek, CA), Permanente Medical Group Inc (Richmond, CA) and Hospitalist Medicine Physicians Of California, Inc (Apple Valley, 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 Omar Al-shuwaykh'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 Omar Al-shuwaykh was last updated on August 13, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Omar Al-Shuwaykh, M.D · NPI 1275967143
Gastroenterology physician in Walnut Creek, California. Individual provider, active in the CMS NPPES registry since August 28, 2013.
## Identity
- **NPI:** 1275967143 (Entity type: Individual)
- **Enumerated:** August 28, 2013
- **Primary specialty:** Internal Medicine - Gastroenterology · taxonomy 207RG0100X
- **State license:** A139572 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 1425 S MAIN ST, Walnut Creek, CA 94596-5318
- **Phone:** (925) 295-5758
## 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:** 5 organizations under Medicare reassignment (form CMS-855R): John Muir Trauma Physicians Billing Service (NPI 1093864837, Walnut Creek, CA); John Muir Physician Network (NPI 1841407665, Walnut Creek, CA); Bass Medical Group (NPI 1043616600, Walnut Creek, CA); Permanente Medical Group Inc (NPI 1235226531, Richmond, CA); Hospitalist Medicine Physicians Of California, Inc (NPI 1184663965, Apple Valley, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2010
## Record status
- **NPPES last updated:** August 13, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1275967143) · Data from the CMS NPPES public registry.