MARCELO SANTOS SAMPAIO M.D.
NPI 1851701221
Internal Medicine - Nephrology in Los Angeles, CA
About Marcelo Santos Sampaio M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
MARCELO SANTOS SAMPAIO M.D. (NPI 1851701221) is an individual nephrology provider in Los Angeles, California, licensed in California (A148327) and active in the NPI registry since May 2014. He is enrolled in Medicare PECOS, maintains 2 additional practice locations, and is a graduate of Other (1997).
NPPES Registry Identity
Specialties & Licenses 3
Secondary Practice Locations 2
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
Marcelo Santos Sampaio M.d. 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 Reassignment
Medicare enrollment records show Marcelo Sampaio reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.
Los Angeles, CA 90034
- Reassigned Medicare billing, California enrollment
- 13,921 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.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 90073 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Other Providers at the Same Location NPPES 20
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
LOS ANGELES, CA 90073
LOS ANGELES, CA 90073
LOS ANGELES, CA 90073
LOS ANGELES, CA 90073
LOS ANGELES, CA 90073
LOS ANGELES, CA 90073
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 Marcelo Sampaio's NPI number?
The NPI number for Marcelo Sampaio is 1851701221. It was assigned to this individual provider in the NPPES registry on May 6, 2014.
Where is Marcelo Sampaio located?
Marcelo Sampaio practices at 11301 Wilshire Blvd Bldg 500, Los Angeles, CA 90073. The listed phone number is (107) 797-7203.
What is Marcelo Sampaio's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.
Is Marcelo Sampaio enrolled in Medicare?
Yes. Marcelo Sampaio 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 organization bills Medicare for Marcelo Sampaio's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Marcelo Sampaio reassigns Medicare benefits to Southern California Permanente Medical Group (Los Angeles, CA). The 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 Marcelo Sampaio'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 Marcelo Sampaio was last updated on December 23, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Marcelo Santos Sampaio, M.D. · NPI 1851701221
Nephrology physician in Los Angeles, California. Individual provider, active in the CMS NPPES registry since May 6, 2014.
## Identity
- **NPI:** 1851701221 (Entity type: Individual)
- **Enumerated:** May 6, 2014
- **Primary specialty:** Internal Medicine - Nephrology · taxonomy 207RN0300X
- **State license:** A148327 (California)
- **Sole proprietor:** Yes
## Practice location
- **Address:** 11301 WILSHIRE BLVD BLDG 500, Los Angeles, CA 90073-1003
- **Phone:** (107) 797-7203
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** Southern California Permanente Medical Group (NPI 1043242563, Los Angeles, CA), under Medicare reassignment (form CMS-855R) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 1997
## Record status
- **NPPES last updated:** December 23, 2021
---
Source: [NPI Profile](https://npiprofile.com/npi/1851701221) · Data from the CMS NPPES public registry.