CATHRYN MARIE O'NEILL M.D.
NPI 1093071763
Family Medicine in Redlands, CA
About Cathryn Marie O'neill M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
CATHRYN MARIE O'NEILL M.D. (NPI 1093071763) is an individual family medicine provider in Redlands, California, licensed in California (A150885) and active in the NPI registry since April 2012. She is enrolled in Medicare PECOS, maintains a secondary practice location in Apple Valley, and is a graduate of Other (2011).
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
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
Cathryn Marie O'neill 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 Cathryn O'neill reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Redlands, CA 92373
- Reassigned Medicare billing, California enrollment
- 635 clinicians in this Medicare group
San Bernardino, CA 92404
- Reassigned Medicare billing, California enrollment
- 1,216 clinicians in this Medicare group
Apple Valley, CA 92307
- Reassigned Medicare billing, California enrollment
- 18 clinicians in this Medicare group
Apple Valley, CA 92307
- Reassigned Medicare billing, California enrollment
- 914 clinicians in this Medicare group
Lone Pine, CA 93545
- Reassigned Medicare billing, California enrollment
- 97 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 92373 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.
REDLANDS, CA 92373
REDLANDS, CA 92373
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 Cathryn O'neill's NPI number?
The NPI number for Cathryn O'neill is 1093071763. It was assigned to this individual provider in the NPPES registry on April 7, 2012.
Where is Cathryn O'neill located?
Cathryn O'neill practices at 350 Terracina Blvd, Redlands, CA 92373. The listed phone number is (909) 335-5500.
What is Cathryn O'neill's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Cathryn O'neill enrolled in Medicare?
Yes. Cathryn O'neill 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 Cathryn O'neill's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Cathryn O'neill reassigns Medicare benefits to 5 organizations: Beaver Medical Group P C (Redlands, CA), Inpatient Specialists Of California, PC (San Bernardino, CA), Hospitalist Medicine Physicians Of California - Apple Valley, PC (Apple Valley, CA), Hospitalist Medicine Physicians Of California, Inc (Apple Valley, CA) and Southern Inyo Healthcare District (Lone Pine, 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 Cathryn O'neill'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 Cathryn O'neill was last updated on September 26, 2023. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 3 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.