RONALD J RUBY MD
NPI 1568475044
Internal Medicine - Endocrinology, Diabetes & Metabolism in Manhattan Beach, CA
About Ronald J Ruby Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RONALD J RUBY MD (NPI 1568475044) is an individual endocrinology, diabetes & metabolism provider in Manhattan Beach, California, licensed in California (G34101) and active in the NPI registry since August 2006. He is enrolled in Medicare PECOS and is a graduate of University Of Texas Southwestern Medical School At Dallas (1973).
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 6
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
Ronald J Ruby 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 Reassignment
Medicare enrollment records show Ronald Ruby reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Torrance, CA 90503
- Reassigned Medicare billing, California enrollment
- 266 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 6
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 90266 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims 7
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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.
MANHATTAN BEACH, CA 90266
MANHATTAN BEACH, CA 90266
MANHATTAN BEACH, CA 90266
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 Ronald Ruby's NPI number?
The NPI number for Ronald Ruby is 1568475044. It was assigned to this individual provider in the NPPES registry on August 14, 2006.
Where is Ronald Ruby located?
Ronald Ruby practices at 1101 N Sepulveda Blvd Suite 102, Manhattan Beach, CA 90266. The listed phone number is (310) 545-6627.
What is Ronald Ruby's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Endocrinology, Diabetes & Metabolism, with taxonomy code 207RE0101X.
Is Ronald Ruby enrolled in Medicare?
Yes. Ronald Ruby 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 organization bills Medicare for Ronald Ruby's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ronald Ruby reassigns Medicare benefits to Providence Medical Institute (Torrance, 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 Ronald Ruby'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 Ronald Ruby was last updated on October 22, 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.