BASS MEDICAL GROUP
NPI 1093181646
Orthopaedic Surgery in Castro Valley, CA
About Bass Medical Group NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
BASS MEDICAL GROUP (NPI 1093181646) is a healthcare organization registered as an orthopaedic surgery in Castro Valley, California and active in the NPI registry since August 2015. The organization lists Rajiv Nagesetty, Authorized Official, as its authorized official.
NPPES Registry Identity
Specialties & Licenses
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)
Bass Medical Group is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Clinicians Billing Medicare Through This Organization
345Medicare enrollment records show 345 clinicians reassign Medicare billing to Bass Medical Group, which bills Medicare for the services they deliver. Of these, 3 practice at this address and 17 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 40
Nearest to this location (20)
See all 345Castro Valley, CA 94546
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 Bass Medical Group's NPI number?
The NPI number for Bass Medical Group is 1093181646. It was assigned to this organization in the NPPES registry on August 18, 2015.
Where is Bass Medical Group located?
Bass Medical Group is located at 19842 Lake Chabot Rd, Castro Valley, CA 94546. The listed phone number is (510) 886-8844.
What is Bass Medical Group's specialty?
The primary specialty registered for this NPI is Orthopaedic Surgery with taxonomy code 207X00000X.
Is Bass Medical Group enrolled in Medicare?
Yes. Bass Medical Group is registered in the Medicare PECOS enrollment system.
How many clinicians bill Medicare through Bass Medical Group?
According to the CMS Revalidation Reassignment List (October 2026 release), 345 clinicians in 40 Medicare specialties reassign their Medicare billing to Bass Medical Group. 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 Nurse Practitioner (53), Otolaryngology (43) and Orthopedic Surgery (20). Of these, 3 practice at this address and 17 within 10 miles. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Bass Medical Group was last updated on October 31, 2024. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 2 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.
# Bass Medical Group · NPI 1093181646
Orthopaedic Surgery organization in Castro Valley, California. Organization record, active in the CMS NPPES registry since August 18, 2015.
## Identity
- **NPI:** 1093181646 (Entity type: Organization)
- **Enumerated:** August 18, 2015
- **Primary specialty:** Orthopaedic Surgery · taxonomy 207X00000X
- **Organization subpart:** No
- **Authorized official:** Rajiv Nagesetty, AUTHORIZED OFFICIAL
## Practice location
- **Address:** 19842 LAKE CHABOT RD, Castro Valley, CA 94546-4002
- **Phone:** (510) 886-8844 · **Fax:** (510) 886-2936
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Clinicians billing through this organization:** 345 clinicians in 40 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Nurse Practitioner (53), Otolaryngology (43), Orthopedic Surgery (20); 3 practice at this address and 17 within 10 miles; [full list](https://npiprofile.com/npi/1093181646/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** October 31, 2024
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Source: [NPI Profile](https://npiprofile.com/npi/1093181646) · Data from the CMS NPPES public registry.