Sankar Narayan Niranjan, MD
Nephrology Physician · Stanford, CA
Sankar Narayan Niranjan, MD is a nephrology physician with a practice address in Stanford, California, and NPI 1497752802, issued on Jun 30, 2005. Check the license (California C196910, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Sankar Narayan Niranjan
- Credential
- MD
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- C196910 CA
Self-reported in NPPES; status is on the state search - Practice location
- 300 Pasteur Dr, Stanford, CA 94305
- Phone
- (650) 723-4000
- Enumerated
- Jun 30, 2005
- Record last updated
- Mar 27, 2025
- Medicaid ID
- 001418161 CT
- Medicare enrollment
- Enrolled (PECOS I20250116002386); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 1,468 in California → Look up another NPI →
Also registered at 300 Pasteur Dr
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Sankar Narayan Niranjan in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license C196910Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
56% fewer Medicare Part D claims than the average nephrology physician in 2024
639 Medicare Part D claims for 132 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D.
Most prescribed
- Amlodipine Besylate104 claims
- Farxiga78 claims
- Calcitriol65 claims
- Spironolactone40 claims
- Torsemide36 claims
- Furosemide31 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: $444.24
12 payments; by number, the most common kind was food and beverage; the largest payer was Amgen 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.
One hospital affiliation
- Stanford Health CareStanford, CA · Acute Care Hospitals5 of 5 stars
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.
Sankar Narayan Niranjan among 1,468 nephrology physician records in California
Sankar Narayan Niranjan, 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 90% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated1994 · median 2001 among the 1,128 with a school on file
- Record last updated2025 · 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 Stanford → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Shuchi Anand, MDStanford, CA 943051932238326
- Vivek Bhalla, MDStanford, CA 943051730118738
- Tara Chang, MDStanford, CA 943051437166592
- Glenn Chertow, MDStanford, CA 943051407823875
- Enrica Fung, MDStanford, CA 943051437338951
- Richard Lafayette, M.D.Stanford, CA 943051922141951
- Fadi Lakkis, MDStanford, CA 943051417175910
- Maha Mohamed, MDStanford, CA 943051750336459
Common questions
What is Sankar Narayan Niranjan, MD's NPI number?
Sankar Narayan Niranjan, MD's National Provider Identifier (NPI) is 1497752802, issued on Jun 30, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Sankar Narayan Niranjan, MD located?
The NPPES record lists a practice address at 300 Pasteur Dr, Stanford, CA, 94305. Phone: (650) 723-4000. Providers update this record themselves, so call before visiting.
How can I verify Sankar Narayan Niranjan, MD's license?
NPPES lists California license number C196910, 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 Sankar Narayan Niranjan, MD prescribe under Medicare Part D?
In 2024, Sankar Narayan Niranjan, MD had 639 Medicare Part D claims for 132 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.