MERCED VEIN & VASCULAR CENTER
NPI 1982977054
Internal Medicine - Interventional Cardiology in Merced, CA
About Merced Vein & Vascular Center NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MERCED VEIN & VASCULAR CENTER (NPI 1982977054) is a healthcare organization registered as an interventional cardiology in Merced, California and active in the NPI registry since February 2012. The organization lists Mani Nallasivan, Chief Executive Officer / Owner, as its authorized official.
NPPES Registry Identity
Specialties & Licenses 2
Other Names 1
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)
Merced Vein & Vascular Center is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Revalidation Due Date
Revalidation due by February 28, 2027
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
Medicare enrollment records show 1 clinician reassigns Medicare billing to Merced Vein & Vascular Center, which bills Medicare for the services this clinician delivers.
Clinician (1)
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 Mani Nallasivan M D Inc A Professional Corporation's NPI number?
The NPI number for Mani Nallasivan M D Inc A Professional Corporation is 1982977054. It was assigned to this organization in the NPPES registry on February 20, 2012. The provider is doing business as Merced Vein & Vascular Center.
Where is Mani Nallasivan M D Inc A Professional Corporation located?
Mani Nallasivan M D Inc A Professional Corporation is located at 424 E Yosemite Ave Suite A, Merced, CA 95340. The listed phone number is (209) 383-3456.
What is Mani Nallasivan M D Inc A Professional Corporation's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Interventional Cardiology, with taxonomy code 207RI0011X.
Is Mani Nallasivan M D Inc A Professional Corporation enrolled in Medicare?
Yes. Mani Nallasivan M D Inc A Professional Corporation is registered in the Medicare PECOS enrollment system.
When is Mani Nallasivan M D Inc A Professional Corporation'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 February 28, 2027. 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 Mani Nallasivan M D Inc A Professional Corporation?
According to the CMS Revalidation Reassignment List (October 2026 release), 1 clinician (Cardiovascular Disease (Cardiology)) reassigns their Medicare billing to Mani Nallasivan M D Inc A Professional Corporation. 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. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
When was this NPI record last updated?
The NPPES record for Mani Nallasivan M D Inc A Professional Corporation was last updated on March 14, 2019. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 7 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.
# Merced Vein & Vascular Center · NPI 1982977054
Interventional Cardiology organization in Merced, California. Organization record, active in the CMS NPPES registry since February 20, 2012.
## Identity
- **NPI:** 1982977054 (Entity type: Organization)
- **Enumerated:** February 20, 2012
- **Primary specialty:** Internal Medicine - Interventional Cardiology · taxonomy 207RI0011X
- **Legal business name:** Mani Nallasivan M D Inc A Professional Corporation
- **Organization subpart:** No
- **Authorized official:** Mani Nallasivan, CHIEF EXECUTIVE OFFICER / OWNER
## Practice location
- **Address:** 424 E YOSEMITE AVE, SUITE A, Merced, CA 95340-8499
- **Phone:** (209) 383-3456
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **Medicare revalidation due:** February 28, 2027 (Non-DME Part B, California, Clinic/Group Practice) · CMS Revalidation Due Date List, October 2026 release
- **Clinicians billing through this organization:** 1 clinician (Cardiovascular Disease (Cardiology)) reassigns Medicare billing to this organization (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
## Record status
- **NPPES last updated:** March 14, 2019
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Source: [NPI Profile](https://npiprofile.com/npi/1982977054) · Data from the CMS NPPES public registry.