Randolph A. Chen, MD
Nephrology Physician · Belmont, CA
Randolph A. Chen, MD is a nephrology physician with a practice address in Belmont, California, and NPI 1962502872, issued on Sep 22, 2006. Check the license (California A37526, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Randolph A. Chen
- Credential
- MD
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- A37526 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1301 Shoreway RD, Belmont, CA 94002
- Phone
- (650) 596-7000
- Enumerated
- Sep 22, 2006
- Record last updated
- May 16, 2008 (not updated in 18 years: call before relying on the address or phone)
- Fax
- (650) 596-7093
- Medicaid ID
- 522236-01 HI
- Medicare enrollment
- Enrolled (PECOS I20080404000145); accepts Medicare assignment
- Medical or professional school
- Wake Forest University School Of Medicine, 1999
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 1,468 in California → Look up another NPI →
Also registered at 1301 Shoreway RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Adil Jadallah, M.D.Family Medicine Physician1780772376
- Elizabeth Kocot, M.D.Internal Medicine Physician1720009673
- Lynda Mackin, NPAdult Health Nurse Practitioner1568668234
- Elizabeth Soda, MDInfectious Disease Physician1336315241
- Jesse Waggoner, M.D.Infectious Disease Physician1003081357
Verify Randolph A. Chen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A37526Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
53% more Medicare Part D claims than the average nephrology physician in 2024
2,241 Medicare Part D claims for 378 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 11% of claims.
Most prescribed
- Losartan Potassium391 claims
- Amlodipine Besylate199 claims
- Metoprolol Succinate192 claims
- Doxazosin Mesylate150 claims
- Calcitriol112 claims
- Hydrochlorothiazide94 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: $5,592.75
45 payments; by number, the most common kind was food and beverage; the largest payer was Fresenius USA Marketing, 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 2 group practices
- County OF San MateoSan Mateo, CA
- San Mateo Dialysis AssociatesBurlingame, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Randolph A. Chen among 1,468 nephrology physician records in California
Randolph A. Chen, 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
- Graduated1999 · median 2001 among the 1,128 with a school on file
- Record last updated2008 · 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 Belmont → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Anirudh Chandra, DOBurlingame, CA 940101255837597
- Rashmi Jain, M.D.Burlingame, CA 940101346444577
- Leena Joshi, M.D.Burlingame, CA 940101003076597
- Daniel Angeli, MDDaly City, CA 940151326417916
- Warren Chang, MDDaly City, CA 940151083674550
- Christian Cruz, MDDaly City, CA 940151023182227
- Philip Hertz, MDDaly City, CA 940151760443725
- Albert Kao, MDDaly City, CA 940151225099286
Common questions
What is Randolph A. Chen, MD's NPI number?
Randolph A. Chen, MD's National Provider Identifier (NPI) is 1962502872, issued on Sep 22, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Randolph A. Chen, MD located?
The NPPES record lists a practice address at 1301 Shoreway RD, Belmont, CA, 94002. Phone: (650) 596-7000. Providers update this record themselves, so call before visiting.
How can I verify Randolph A. Chen, MD's license?
NPPES lists California license number A37526, 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 Randolph A. Chen, MD prescribe under Medicare Part D?
In 2024, Randolph A. Chen, MD had 2,241 Medicare Part D claims for 378 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.