Robert W. Steiner, M.D.
Nephrology Physician · San Diego, CA
Robert W. Steiner, M.D. is a nephrology physician with a practice address in San Diego, California, and NPI 1811043607, issued on Jan 26, 2007. Check the license (California G31734, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Robert W. Steiner
- Credential
- M.D.
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- G31734 CA
Self-reported in NPPES; status is on the state search - Practice location
- 4168 Front Street, San Diego, CA 92103
- Phone
- (619) 543-5916
- Enumerated
- Jan 26, 2007
- Record last updated
- Aug 1, 2016 (not updated in 10 years: call before relying on the address or phone)
- Fax
- (619) 543-7368
- Medicaid ID
- 00G317340 CA
- Medicare enrollment
- Enrolled (PECOS I20100923001444); accepts Medicare assignment
- Medical or professional school
- Harvard Medical School, 1972
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 1,468 in California → Look up another NPI →
Verify Robert W. Steiner in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G31734Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
95% fewer Medicare Part D claims than the average nephrology physician in 2024
74 Medicare Part D claims for 11 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D.
Most prescribed
- Nifedipine Er13 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: $63.08
2 payments; by number, the most common kind was food and beverage; the largest payer was Calliditas Therapeutics US 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
- Regents OF The University OF CaliforniaSan Diego, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Robert W. Steiner among 1,468 nephrology physician records in California
Robert W. Steiner, 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 2007, is newer than 52% of them.
- NPI issued2007 · 52% of these records are older, 35% newer
- In a Medicare fileYes · 88% of these records are
- In the CMS Doctors and Clinicians fileYes · 77% of these records are
- Graduated1972 · median 2001 among the 1,128 with a school on file
- Record last updated2016 · 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 San Diego → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Judy Adler, M.D.San Diego, CA 921031326043894
- Joel Baranski, M.D.San Diego, CA 921031548265234
- John Bestoso, M.D.San Diego, CA 921031295721884
- Francis Gabbai, M.D.San Diego, CA 921031356356034
- Kevin Hoveida, MDSan Diego, CA 921031508931023
- Joachim IX, M.D.San Diego, CA 921031720017536
- Ravindra Mehta, MDSan Diego, CA 921031295818102
- Cynthia Miracle, MDSan Diego, CA 921031700976636
Common questions
What is Robert W. Steiner, M.D.'s NPI number?
Robert W. Steiner, M.D.'s National Provider Identifier (NPI) is 1811043607, issued on Jan 26, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Robert W. Steiner, M.D. located?
The NPPES record lists a practice address at 4168 Front Street, San Diego, CA, 92103. Phone: (619) 543-5916. Providers update this record themselves, so call before visiting.
How can I verify Robert W. Steiner, M.D.'s license?
NPPES lists California license number G31734, 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 Robert W. Steiner, M.D. prescribe under Medicare Part D?
In 2024, Robert W. Steiner, M.D. had 74 Medicare Part D claims for 11 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.