Lewis A. Osofsky, M.D.
Pediatrics Physician · Santa Clara, CA
Lewis A. Osofsky, M.D. is a pediatrics physician with a practice address in Santa Clara, California, and NPI 1821079757, issued on Nov 8, 2005. Check the license (California G47908, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Lewis A. Osofsky
- Credential
- M.D.
- Primary taxonomy
- Pediatrics Physician 208000000X
- License number
- G47908 CA
Self-reported in NPPES; status is on the state search - Practice location
- 500 EL Camino Real, Santa Clara, CA 95053
- Phone
- (408) 554-4501
- Enumerated
- Nov 8, 2005
- Record last updated
- Jul 25, 2023
- Fax
- (408) 554-2376
- Entity
- Type 1 · individual
8 nearest pediatrics physician records → All 9,272 in California → Look up another NPI →
Also registered at 500 EL Camino Real
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Lewis A. Osofsky in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license G47908Check 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 pediatrics physician in 2024
20 Medicare Part D claims, against an average of 375 among the 5,609 providers of this specialty who prescribed in Part D.
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.
Lewis A. Osofsky among 9,272 pediatrics physician records in California
Lewis A. Osofsky, M.D. is one of 9,272 pediatrics physician records with a practice address in California. 31% 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, 96% newer
- In a Medicare fileYes · 31% of these records are
- In the CMS Doctors and Clinicians fileNo · 8% of these records are
- Record last updated2023 · 65% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208000000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
70 pediatrics physician records list a practice address in Santa Clara
They are 70 of the 3,436 NPPES records with a practice address in Santa Clara, and 9,272 pediatrics physician records in California.
All 9,272 in California → Every provider in Santa Clara → Pediatrics Physician nationwide →
The 8 pediatrics physician records with the nearest ZIP codes
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- Alana Corre, MDSanta Clara, CA 950511962088914
- Lily Deng, MDSanta Clara, CA 950511386103109
- Janeet Dhauna, MDSanta Clara, CA 950511396442968
- Dore Dorzia, MDSanta Clara, CA 950511750968186
Common questions
What is Lewis A. Osofsky, M.D.'s NPI number?
Lewis A. Osofsky, M.D.'s National Provider Identifier (NPI) is 1821079757, issued on Nov 8, 2005. An NPI identifies a provider in billing; it is not a license.
Where is Lewis A. Osofsky, M.D. located?
The NPPES record lists a practice address at 500 EL Camino Real, Santa Clara, CA, 95053. Phone: (408) 554-4501. Providers update this record themselves, so call before visiting.
How can I verify Lewis A. Osofsky, M.D.'s license?
NPPES lists California license number G47908, 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 Lewis A. Osofsky, M.D. prescribe under Medicare Part D?
In 2024, Lewis A. Osofsky, M.D. had 20 Medicare Part D claims; the average among pediatrics physician prescribers was 375. 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.