RILEY JOSEPH NORTH MD
NPI 1316520224
Emergency Medicine in Castro Valley, CA
About Riley Joseph North Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RILEY JOSEPH NORTH MD (NPI 1316520224) is an individual emergency medicine provider in Castro Valley, California, licensed in California (A194994) and active in the NPI registry since April 2021. He is enrolled in Medicare PECOS and is a graduate of Virginia Commonwealth University, School Of Medicine (2021).
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
Riley Joseph North 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 Riley North reassigns Medicare billing to 3 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Castro Valley, CA 94546
- Reassigned Medicare billing, California enrollment
- 43 clinicians in this Medicare group
Redwood City, CA 94063
- Reassigned Medicare billing, California enrollment
- 20,078 clinicians in this Medicare group
San Francisco, CA 94109
- Reassigned Medicare billing, California enrollment
- 155 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 4
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 94546 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.
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 Riley North's NPI number?
The NPI number for Riley North is 1316520224. It was assigned to this individual provider in the NPPES registry on April 29, 2021.
Where is Riley North located?
Riley North practices at 20103 Lake Chabot Rd, Castro Valley, CA 94546. The listed phone number is (501) 727-3015.
What is Riley North's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Riley North enrolled in Medicare?
Yes. Riley North 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 Riley North's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Riley North reassigns Medicare benefits to 3 organizations: Eden Emergency Medical Group Inc (Castro Valley, CA), Permanente Medical Group Inc (Redwood City, CA) and San Francisco Emergency Medical Associates (San Francisco, 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 Riley North'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 Riley North was last updated on February 28, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 20 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.
# Riley Joseph North, MD · NPI 1316520224
Emergency Medicine physician in Castro Valley, California. Individual provider, active in the CMS NPPES registry since April 29, 2021.
## Identity
- **NPI:** 1316520224 (Entity type: Individual)
- **Enumerated:** April 29, 2021
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** A194994 (California)
- **Sole proprietor:** No
## Practice location
- **Address:** 20103 LAKE CHABOT RD, Castro Valley, CA 94546-5305
- **Phone:** (501) 727-3015
## 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): Eden Emergency Medical Group Inc (NPI 1891786240, Castro Valley, CA); Permanente Medical Group Inc (NPI 1639252604, Redwood City, CA); San Francisco Emergency Medical Associates (NPI 1134110661, San Francisco, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Virginia Commonwealth University, School Of Medicine, class of 2021
## Record status
- **NPPES last updated:** February 28, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1316520224) · Data from the CMS NPPES public registry.