NPPES file of Aug 9, 2026

Leon Rovner, M.D.

Nephrology Physician · Los Angeles, CA

Leon Rovner, M.D. is a nephrology physician with a practice address in Los Angeles, California, and NPI 1811013766, issued on Mar 22, 2007. Check the license (California A115138, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.

Record from CMS NPPES, file of Aug 9, 2026 · Medicare files 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1811013766
Name
Leon Rovner
Credential
M.D.
Primary taxonomy
Nephrology Physician 207RN0300X
License numbers
A115138 CA
57011254 OH
Self-reported in NPPES; status is on the state search
Practice location
1400 S Grand Ave, Los Angeles, CA 90015
Phone
(213) 748-1414
Enumerated
Mar 22, 2007
Record last updated
Jun 19, 2014 (not updated in 12 years: call before relying on the address or phone)
Fax
(213) 749-4021
Medicare enrollment
Enrolled (PECOS I20110728000339); accepts Medicare assignment
Telehealth
Offers telehealth (CMS)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). Enrollment, assignment, school and telehealth: CMS Doctors and Clinicians file, Aug 2026. A record is not a license: verify it with the state board.
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8 nearest nephrology physician records → All 1,468 in California → Look up another NPI →

Also registered at 1400 S Grand Ave

A shared address usually means a shared clinic or building; it does not show who employs whom.

  1. Seidy AlejandroClinical Social Worker1538927710
  2. Tina Alva, D.P.T.Physical Therapist1629220496
  3. Ali Amini, M.D.Internal Medicine Physician1528251386
  4. Armaity Austin, M.D, M.P.H, FAAFPFamily Medicine Physician1558348946
  5. Farid Besharat, M.D.Pulmonary Disease Physician1366548620
  6. Harvey Brown, MDPulmonary Disease Physician1235111717

Verify Leon Rovner in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A115138    Check the board
  3. 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
  4. 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
  5. 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
Open the California license search

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10% more Medicare Part D claims than the average nephrology physician in 2024

1,618 Medicare Part D claims for 202 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 57% of claims.

  1. Leon Rovner1,618
  2. Specialty average1,465

Most prescribed

  1. Kerendia303 claims
  2. Jardiance189 claims
  3. Farxiga178 claims
  4. Losartan Potassium96 claims
  5. Chlorthalidone95 claims
  6. Furosemide73 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: $1,235.44

27 payments; by number, the most common kind was food and beverage; the largest payer was Alexion Pharmaceuticals, 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.

  1. Leon Rovner$1,235.44
  2. Specialty average$3,091.37

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

  1. Martin Luther King JR Community Medical FoundationLos Angeles, CA
  2. Premier Nephrology Medical Group IncLos Angeles, CA

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).

Leon Rovner among 1,468 nephrology physician records in California

Leon Rovner, 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
  • Graduated2003 · median 2001 among the 1,128 with a school on file
  • Record last updated2014 · 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

  1. Jonathan Cheng, MDLos Angeles, CA 900151538600887
  2. Grace ChoiLos Angeles, CA 900151831585074
  3. Bruce Greenfield, M.D.Los Angeles, CA 900151043224686
  4. Kim Le, M.D.Los Angeles, CA 900151780698340
  5. Luani Lee, M.D.Los Angeles, CA 900151073747135
  6. Ardavan Mashhadian, D.O.Los Angeles, CA 900151003132523
  7. Irene Toh, M.D.Los Angeles, CA 900151679613863
  8. Lin WangLos Angeles, CA 900151366974859

Common questions

What is Leon Rovner, M.D.'s NPI number?

Leon Rovner, M.D.'s National Provider Identifier (NPI) is 1811013766, issued on Mar 22, 2007. An NPI identifies a provider in billing; it is not a license.

Where is Leon Rovner, M.D. located?

The NPPES record lists a practice address at 1400 S Grand Ave, Los Angeles, CA, 90015. Phone: (213) 748-1414. Providers update this record themselves, so call before visiting.

How can I verify Leon Rovner, M.D.'s license?

NPPES lists California license number A115138, 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 Leon Rovner, M.D. prescribe under Medicare Part D?

In 2024, Leon Rovner, M.D. had 1,618 Medicare Part D claims for 202 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.