Samuel S. Liu, MD
Nephrology Physician · Downey, CA
Samuel S. Liu, MD is a nephrology physician with a practice address in Downey, California, and NPI 1912935628, issued on Jun 29, 2006. Check the license (California A74056, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Samuel S. Liu
- Credential
- MD
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- A74056 CA
Self-reported in NPPES; status is on the state search - Practice location
- 11480 Brookshire Ave Ste 105, Downey, CA 90241
- Phone
- (562) 862-8184
- Enumerated
- Jun 29, 2006
- Record last updated
- Jun 28, 2024
- Fax
- (562) 862-8184
- Medicare enrollment
- Enrolled (PECOS I20051201000591); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 1,468 in California → Look up another NPI →
Verify Samuel S. Liu in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A74056Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
68% more Medicare Part D claims than the average nephrology physician in 2024
2,463 Medicare Part D claims for 278 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims. 50 claims were for opioids.
Most prescribed
- Calcium Acetate245 claims
- Furosemide198 claims
- Sevelamer Carbonate145 claims
- Amlodipine Besylate124 claims
- Prosol123 claims
- Losartan Potassium80 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: $206.42
10 payments; by number, the most common kind was food and beverage; the largest payer was Ardelyx, 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
- Department OF State HospitalsNorwalk, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Samuel S. Liu among 1,468 nephrology physician records in California
Samuel S. Liu, MD 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 2006, is newer than 10% of them.
- NPI issued2006 · 10% of these records are older, 48% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated1998 · median 2001 among the 1,128 with a school on file
- Record last updated2024 · 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 Downey → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Michael Fang, M.D.Downey, CA 902411154338580
- Maricel Pilapil-Pureza, MDDowney, CA 902411366547655
- Betzabe Alday, M.D.Downey, CA 902421013027325
- John Shaib, MDDowney, CA 902401851339048
- Sanford Gaynor, M.D.Gardena, CA 902471780661405
- Sara Asadi, M.DHawthorne, CA 902501902033632
- Amnon Licht, M.DCulver City, CA 902321669475273
- Pierre Espenan, MDHuntington Park, CA 902551386618304
Common questions
What is Samuel S. Liu, MD's NPI number?
Samuel S. Liu, MD's National Provider Identifier (NPI) is 1912935628, issued on Jun 29, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Samuel S. Liu, MD located?
The NPPES record lists a practice address at 11480 Brookshire Ave Ste 105, Downey, CA, 90241. Phone: (562) 862-8184. Providers update this record themselves, so call before visiting.
How can I verify Samuel S. Liu, MD's license?
NPPES lists California license number A74056, 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 Samuel S. Liu, MD prescribe under Medicare Part D?
In 2024, Samuel S. Liu, MD had 2,463 Medicare Part D claims for 278 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.