MARCUS AURELIO LEAL VIEIRA D.O.
NPI 1942569223
Anesthesiology in Visalia, CA
About Marcus Aurelio Leal Vieira D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARCUS AURELIO LEAL VIEIRA D.O. (NPI 1942569223) is an individual anesthesiology provider in Visalia, California, licensed in Texas (BP10043703) and active in the NPI registry since May 2012. He is enrolled in Medicare PECOS and is a graduate of Other (2012).
NPPES Registry Identity
Specialties & Licenses
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
Marcus Aurelio Leal Vieira D.o. 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
4Medicare enrollment records show Marcus Vieira reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Paso Robles, CA 93446
- Reassigned Medicare billing, California enrollment
- 488 clinicians in this Medicare group
Santa Clarita, CA 91355
- Reassigned Medicare billing, California enrollment
- 833 clinicians in this Medicare group
Stockton, CA 95207
- Reassigned Medicare billing, California enrollment
- 22 clinicians in this Medicare group
Stockton, CA 95207
- Reassigned Medicare billing, California enrollment
- 11 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.
Areas of Expertise CMS Part B claims 6
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
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
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 Marcus Vieira's NPI number?
The NPI number for Marcus Vieira is 1942569223. It was assigned to this individual provider in the NPPES registry on May 8, 2012.
Where is Marcus Vieira located?
Marcus Vieira practices at 307 Irma St, Visalia, CA 93292. The listed phone number is (408) 646-3160.
What is Marcus Vieira's specialty?
The primary specialty registered for this NPI is Anesthesiology with taxonomy code 207L00000X.
Is Marcus Vieira enrolled in Medicare?
Yes. Marcus Vieira 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 Marcus Vieira's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marcus Vieira reassigns Medicare benefits to 4 organizations: First Choice Physician Partners (Paso Robles, CA), Cep America - Anesthesia PC (Santa Clarita, CA), Core Anesthesia Provider Services PC (Stockton, CA) and Core Anesthesia Services PC (Stockton, 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 Marcus Vieira'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 Marcus Vieira was last updated on May 8, 2012. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 14 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.