ONLINE RADIOLOGY MEDICAL GROUP, INC.
NPI 1134525181
Radiology - Diagnostic Radiology in Mill Valley, CA
About Online Radiology Medical Group, Inc. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ONLINE RADIOLOGY MEDICAL GROUP, INC. (NPI 1134525181) is a healthcare organization registered as a diagnostic radiology in Mill Valley, California and active in the NPI registry since November 2014. The organization lists Samuel Salen, M.d., Cfo, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 1
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
Online Radiology Medical Group, Inc. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
19Medicare enrollment records show 19 clinicians reassign Medicare billing to Online Radiology Medical Group, Inc., which bills Medicare for the services they deliver. They are listed nearest first.
Clinicians by Medicare Specialty 2
Clinicians, nearest first (19)
Phoenix, AZ 85008
Woodstock, IL 60098
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
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 Online Radiology Medical Group, Inc.'s NPI number?
The NPI number for Online Radiology Medical Group, Inc. is 1134525181. It was assigned to this organization in the NPPES registry on November 18, 2014.
Where is Online Radiology Medical Group, Inc. located?
Online Radiology Medical Group, Inc. is located at 338 Lowell Ave, Mill Valley, CA 94941. The listed phone number is (415) 888-3391.
What is Online Radiology Medical Group, Inc.'s specialty?
The primary specialty registered for this NPI is Radiology, specializing in Diagnostic Radiology, with taxonomy code 2085R0202X.
Is Online Radiology Medical Group, Inc. enrolled in Medicare?
Yes. Online Radiology Medical Group, Inc. is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Online Radiology Medical Group, Inc.?
According to the CMS Revalidation Reassignment List (October 2026 release), 19 clinicians in 2 Medicare specialties reassign their Medicare billing to Online Radiology Medical Group, Inc.. A 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 the clinician's services. The largest specialties are Diagnostic Radiology (18) and Neuroradiology (1). Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Online Radiology Medical Group, Inc. was last updated on November 18, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 11 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.
# Online Radiology Medical Group, Inc. · NPI 1134525181
Diagnostic Radiology organization in Mill Valley, California. Organization record, active in the CMS NPPES registry since November 18, 2014.
## Identity
- **NPI:** 1134525181 (Entity type: Organization)
- **Enumerated:** November 18, 2014
- **Primary specialty:** Radiology - Diagnostic Radiology · taxonomy 2085R0202X
- **Organization subpart:** No
- **Authorized official:** Samuel Salen, M.D., CFO
## Practice location
- **Address:** 338 LOWELL AVE, Mill Valley, CA 94941-3845
- **Phone:** (415) 888-3391
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 19 clinicians in 2 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Diagnostic Radiology (18), Neuroradiology (1) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** November 18, 2014
- **Other identifiers:** Medicare PIN EX251Z (CA)
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Source: [NPI Profile](https://npiprofile.com/npi/1134525181) · Data from the CMS NPPES public registry.