Marcelo Santos Sampaio, M.D.
Nephrology Physician · Los Angeles, CA
Marcelo Santos Sampaio, M.D. is a nephrology physician with a practice address in Los Angeles, California, and NPI 1851701221, issued on May 6, 2014. Check the license (California A148327, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Marcelo Santos Sampaio
- Credential
- M.D.
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- A148327 CA
Self-reported in NPPES; status is on the state search - Practice location
- 11301 Wilshire Blvd Bldg 500, Los Angeles, CA 90073
- Phone
- (107) 797-7203
- Enumerated
- May 6, 2014
- Record last updated
- Dec 23, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20210414001094); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 1,468 in California → Look up another NPI →
Also registered at 11301 Wilshire Blvd Bldg 500
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Joy AhnPharmacist1902454747
- Yusuke Akahoshi, M.D.Anesthesiology Physician1164953246
- Megan Au, PHARM.D.Pharmacist1598841041
- Jano BoghossianFoot & Ankle Surgery Podiatrist1881189231
- Miranda Boisclair, PHARMDGeriatric Pharmacist1619053154
- Maureen Burruel, MSWSocial Worker1821282302
Verify Marcelo Santos Sampaio in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A148327Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
10% more Medicare Part D claims than the average nephrology physician in 2024
1,606 Medicare Part D claims for 226 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Losartan Potassium158 claims
- Amlodipine Besylate144 claims
- Furosemide138 claims
- Jardiance92 claims
- Sevelamer Carbonate85 claims
- Hydralazine Hcl75 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Industry payments in 2024: $29.70
1 payment: food and beverage; the largest payer was Travere Therapeutics, Inc. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Southern California Permanente Medical GroupLos Angeles, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Marcelo Santos Sampaio among 1,468 nephrology physician records in California
Marcelo Santos Sampaio, M.D. is one of 1,468 nephrology physician records with a practice address in California. 88% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2014, is newer than 85% of them.
- NPI issued2014 · 85% of these records are older, 13% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated1997 · median 2001 among the 1,128 with a school on file
- Record last updated2021 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in California
There are 1,468 nephrology physician records in California.
All 1,468 in California → Every provider in Los Angeles → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Arnold Felsenfeld, M.D.Los Angeles, CA 900731952411159
- Dalia Goldfarb-Waysman, M.D.Los Angeles, CA 900731699887752
- Barton Levine, M.D.Los Angeles, CA 900731508976903
- Glenn Nagami, M.D.Los Angeles, CA 900731194835827
- Dean Yamaguchi, M.D., PH.D.Los Angeles, CA 900731578516662
- Michael Blumenkrantz, M.D.Los Angeles, CA 900671619984234
- Abe Green, MDLos Angeles, CA 900671649462144
- Luon Peng, DOLos Angeles, CA 900631407937105
Common questions
What is Marcelo Santos Sampaio, M.D.'s NPI number?
Marcelo Santos Sampaio, M.D.'s National Provider Identifier (NPI) is 1851701221, issued on May 6, 2014. An NPI identifies a provider in billing; it is not a license.
Where is Marcelo Santos Sampaio, M.D. located?
The NPPES record lists a practice address at 11301 Wilshire Blvd Bldg 500, Los Angeles, CA, 90073. Phone: (107) 797-7203. Providers update this record themselves, so call before visiting.
How can I verify Marcelo Santos Sampaio, M.D.'s license?
NPPES lists California license number A148327, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Marcelo Santos Sampaio, M.D. prescribe under Medicare Part D?
In 2024, Marcelo Santos Sampaio, M.D. had 1,606 Medicare Part D claims for 226 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.