Leanne R. Lash
Internal Medicine Physician · Redwood Shores, CA
Leanne R. Lash is an internal medicine physician with a practice address in Redwood Shores, California, and NPI 1396744454, issued on Jul 20, 2005. Check the license (California A102435, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Leanne R. Lash
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- A102435 CA
34881 DC
Self-reported in NPPES; status is on the state search - Practice location
- 209 Redwood Shores, Redwood Shores, CA 94068
- Phone
- (650) 598-3160
- Enumerated
- Jul 20, 2005
- Record last updated
- Jan 20, 2009 (not updated in 17 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Verify Leanne R. Lash in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A102435Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
The practice group's MIPS final score for 2023 (Medicare payment program): 76.6 of 100
The Merit-based Incentive Payment System score is reported for the practice group, not for one clinician alone. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).
Leanne R. Lash among 17,696 internal medicine physician records in California
Leanne R. Lash is one of 17,696 internal medicine physician records with a practice address in California. 79% 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, 95% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2009 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Internal Medicine Physician providers in California
There are 17,696 internal medicine physician records in California.
All 17,696 in California → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
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- Virginia Dzul-ChurchSan Bruno, CA 940661588988083
- Charlotte Gonzales, M.D.San Carlos, CA 940701891758892
- David Jacoby, MDSan Carlos, CA 940701295715134
- Kenneth Lin, MDSan Carlos, CA 940701972546976
- Martha Mejia, M.D.San Carlos, CA 940701871520155
- Jacqueline Miodownik-Aisenberg, MDSan Bruno, CA 940661740210095
Common questions
What is Leanne R. Lash's NPI number?
Leanne R. Lash's National Provider Identifier (NPI) is 1396744454, issued on Jul 20, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Leanne R. Lash located?
The NPPES record lists a practice address at 209 Redwood Shores, Redwood Shores, CA, 94068. Phone: (650) 598-3160. Providers update this record themselves, so call before visiting.
How can I verify Leanne R. Lash's license?
NPPES lists California license number A102435, 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.
What is Leanne R. Lash's MIPS final score?
The 2023 MIPS final score is 76.6 of 100, reported for the practice group. The average among 454,083 clinicians with a measured score was 83.5.
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.