SEN SHAW MD
NPI 1215089438
Internal Medicine in Vallejo, CA
About Sen Shaw Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
SEN SHAW MD (NPI 1215089438) is an individual internal medicine provider in Vallejo, California, licensed in California (A73045) and active in the NPI registry since January 2007. He is enrolled in Medicare PECOS and is a graduate of Other (1983).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
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
Sen Shaw 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 Sen Shaw reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Vallejo, CA 94589
- Reassigned Medicare billing, California enrollment
- 20,078 clinicians in this Medicare group
Manteca, CA 95336
- Reassigned Medicare billing, California enrollment
- 488 clinicians in this Medicare group
Prunedale, CA 93907
- Reassigned Medicare billing, California enrollment
- 284 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.
Areas of Expertise CMS Part B claims 3
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 94589 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.
VALLEJO, CA 94589
VALLEJO, CA 94589
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 Sen Shaw's NPI number?
The NPI number for Sen Shaw is 1215089438. It was assigned to this individual provider in the NPPES registry on January 17, 2007.
Where is Sen Shaw located?
Sen Shaw practices at 975 Sereno Dr, Vallejo, CA 94589. The listed phone number is (707) 651-1000.
What is Sen Shaw's specialty?
The primary specialty registered for this NPI is Internal Medicine with taxonomy code 207R00000X.
Is Sen Shaw enrolled in Medicare?
Yes. Sen Shaw 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 Sen Shaw's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Sen Shaw reassigns Medicare benefits to 3 organizations: Permanente Medical Group Inc (Vallejo, CA), First Choice Physician Partners (Manteca, CA) and County Of Monterey (Prunedale, 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 Sen Shaw'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 Sen Shaw was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 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.