ON CALL SPECIALISTS MEDICAL GROUP OF SAN DIEGO, INC.
NPI 1962175836
Specialist in San Diego, CA
About On Call Specialists Medical Group Of San Diego, Inc. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ON CALL SPECIALISTS MEDICAL GROUP OF SAN DIEGO, INC. (NPI 1962175836) is a healthcare organization registered as a specialist in San Diego, California and active in the NPI registry since July 2021. The organization lists Michael Couris, President, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 4
Group Practice 1
Medicare Participation & PECOS CMS
Medicare enrollment, revalidation and the clinicians who bill Medicare through this organization, from CMS.
Medicare Enrollment Status
Enrolled in Medicare (PECOS)
On Call Specialists Medical Group Of San Diego, Inc. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Revalidation Due Date
Revalidation due by October 31, 2026
Medicare-enrolled providers and suppliers confirm their enrollment information with CMS on a set cycle, every 5 years for most and every 3 years for medical equipment suppliers. CMS sets the due date for each enrollment.
Clinicians Billing Medicare Through This Organization
218Medicare enrollment records show 218 clinicians reassign Medicare billing to On Call Specialists Medical Group Of San Diego, Inc., which bills Medicare for the services they deliver. Of these, 10 practice at this address and 166 within 10 miles. Listed here are the 20 practicing nearest to this location.
Clinicians by Medicare Specialty 38
Nearest to this location (20)
See all 218Source: 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 On Call Specialists Medical Group Of San Diego, Inc.'s NPI number?
The NPI number for On Call Specialists Medical Group Of San Diego, Inc. is 1962175836. It was assigned to this organization in the NPPES registry on July 27, 2021.
Where is On Call Specialists Medical Group Of San Diego, Inc. located?
On Call Specialists Medical Group Of San Diego, Inc. is located at 4077 Fifth Ave, San Diego, CA 92103. The listed phone number is (619) 294-8111.
What is On Call Specialists Medical Group Of San Diego, Inc.'s specialty?
The primary specialty registered for this NPI is Specialist with taxonomy code 174400000X.
Is On Call Specialists Medical Group Of San Diego, Inc. enrolled in Medicare?
Yes. On Call Specialists Medical Group Of San Diego, Inc. is registered in the Medicare PECOS enrollment system.
When is On Call Specialists Medical Group Of San Diego, Inc.'s Medicare revalidation due?
According to the CMS Revalidation Due Date List (October 2026 release), the Medicare Non-DME Part B enrollment for this organization (California, Clinic/Group Practice) is due for revalidation by October 31, 2026. Medicare providers and suppliers revalidate their enrollment every 5 years, and medical equipment suppliers every 3 years. Confirm current requirements with your Medicare Administrative Contractor.
How many clinicians bill Medicare through On Call Specialists Medical Group Of San Diego, Inc.?
According to the CMS Revalidation Reassignment List (October 2026 release), 218 clinicians in 38 Medicare specialties reassign their Medicare billing to On Call Specialists Medical Group Of San Diego, 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 Cardiovascular Disease (Cardiology) (27), General Surgery (19) and Orthopedic Surgery (18). Of these, 10 practice at this address and 166 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 On Call Specialists Medical Group Of San Diego, Inc. was last updated on July 20, 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.
# On Call Specialists Medical Group Of San Diego, Inc. · NPI 1962175836
Specialist organization in San Diego, California. Organization record, active in the CMS NPPES registry since July 27, 2021.
## Identity
- **NPI:** 1962175836 (Entity type: Organization)
- **Enumerated:** July 27, 2021
- **Primary specialty:** Specialist · taxonomy 174400000X
- **Organization subpart:** No
- **Authorized official:** Michael Couris, PRESIDENT
## Practice location
- **Address:** 4077 FIFTH AVE, San Diego, CA 92103-2105
- **Phone:** (619) 294-8111
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Medicare revalidation due:** October 31, 2026 (Non-DME Part B, California, Clinic/Group Practice) · CMS Revalidation Due Date List, October 2026 release
- **Clinicians billing through this organization:** 218 clinicians in 38 Medicare specialties reassign Medicare billing to this organization (form CMS-855R); largest: Cardiovascular Disease (Cardiology) (27), General Surgery (19), Orthopedic Surgery (18); 10 practice at this address and 166 within 10 miles; [full list](https://npiprofile.com/npi/1962175836/clinicians) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** July 20, 2023
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Source: [NPI Profile](https://npiprofile.com/npi/1962175836) · Data from the CMS NPPES public registry.