DR. ARTHUR K. LAW M.D.
NPI 1629006515
Pediatrics in Walnut Creek, CA
About Dr. Arthur K. Law M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ARTHUR K. LAW M.D. (NPI 1629006515) is an individual pediatrics provider in Walnut Creek, California, licensed in California (G77603) and active in the NPI registry since June 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 4
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Dr. Arthur K. Law M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignment
Medicare enrollment records show Arthur Law reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Walnut Creek, CA 94597
- Reassigned Medicare billing, California enrollment
- 650 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 94597 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.
WALNUT CREEK, CA 94597
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 Arthur Law's NPI number?
The NPI number for Arthur Law is 1629006515. It was assigned to this individual provider in the NPPES registry on June 29, 2006.
Where is Arthur Law located?
Arthur Law practices at 1450 Treat Blvd Suite 140, Walnut Creek, CA 94597. The listed phone number is (925) 296-9770.
What is Arthur Law's specialty?
The primary specialty registered for this NPI is Pediatrics with taxonomy code 208000000X.
Is Arthur Law enrolled in Medicare?
Yes. Arthur Law is registered in the Medicare PECOS enrollment system.
Which organization bills Medicare for Arthur Law's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Arthur Law reassigns Medicare benefits to John Muir Physician Network (Walnut Creek, CA). The 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 Arthur Law'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 Arthur Law was last updated on April 2, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.