NPPES file of Aug 9, 2026

Eva Lean, M.D.

Radiation Oncology Physician · Vista, CA

Eva Lean, M.D. is a radiation oncology physician with a practice address in Vista, California, and NPI 1487648572, issued on Sep 6, 2005. Check the license (California A42436, 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
1487648572
Name
Eva Lean
Credential
M.D.
Primary taxonomy
Radiation Oncology Physician 2085R0001X
License number
A42436 CA
Self-reported in NPPES; status is on the state search
Practice location
916 Sycamore Ave, Vista, CA 92081
Phone
(760) 599-9545
Enumerated
Sep 6, 2005
Record last updated
Apr 9, 2008 (not updated in 18 years: call before relying on the address or phone)
Fax
(760) 599-9549
Medicaid ID
00A42436A0 CA
Medicare enrollment
Enrolled (PECOS I20110915000684); accepts Medicare assignment
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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Also registered at 916 Sycamore Ave

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

  1. Norbert Kased, M.D.Radiation Oncology Physician1639405178
  2. Patrick Linson, M.D.Radiation Oncology Physician1184618175

Verify Eva Lean in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license A42436
    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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90% fewer Medicare Part D claims than the average radiation oncology physician in 2024

13 Medicare Part D claims for 11 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D.

  1. Eva Lean13
  2. Specialty average134

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.

Bills Medicare through one group practice

  1. Scripps HealthLa Jolla, CA

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

Eva Lean among 735 radiation oncology physician records in California

Eva Lean, M.D. is one of 735 radiation oncology physician records with a practice address in California. 83% 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, 84% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 74% of these records are
  • Graduated1982 · median 2005 among the 545 with a school on file
  • Record last updated2008 · 55% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Radiation Oncology Physician providers in California

There are 735 radiation oncology physician records in California.

The 8 radiation oncology physician records with the nearest ZIP codes

  1. Norbert Kased, M.D.Vista, CA 920811639405178
  2. Patrick Linson, M.D.Vista, CA 920811184618175
  3. Sunil Advani, M.D.La Jolla, CA 920931669649844
  4. Jona Hattangadi-Gluth, MDLa Jolla, CA 920931467625491
  5. Loren Mell, M.D.La Jolla, CA 920931316119704
  6. Kevin Murphy, M.D.La Jolla, CA 920931730104167
  7. James Murphy, MDLa Jolla, CA 920931730382631
  8. Brent Rose, M.D.La Jolla, CA 920931518250869

Common questions

What is Eva Lean, M.D.'s NPI number?

Eva Lean, M.D.'s National Provider Identifier (NPI) is 1487648572, issued on Sep 6, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Eva Lean, M.D. located?

The NPPES record lists a practice address at 916 Sycamore Ave, Vista, CA, 92081. Phone: (760) 599-9545. Providers update this record themselves, so call before visiting.

How can I verify Eva Lean, M.D.'s license?

NPPES lists California license number A42436, 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 Eva Lean, M.D. prescribe under Medicare Part D?

In 2024, Eva Lean, M.D. had 13 Medicare Part D claims for 11 beneficiaries; the average among radiation oncology physician prescribers was 134. 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.