NPPES file of Aug 9, 2026

Lewis Sandy Margolis

Anesthesiology Physician · Redwood City, CA

Lewis Sandy Margolis is an anesthesiology physician with a practice address in Redwood City, California, and NPI 1235231739, issued on Sep 4, 2006. Check the license (California G28798, as entered in NPPES) on the Medical Board of California; the federal record below is the public data PlainDoctor holds for this provider.

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

NPPES recordNPPES file of Aug 9, 2026
1235231739
Name
Lewis Sandy Margolis
Primary taxonomy
Anesthesiology Physician 207L00000X
License number
G28798 CA
Self-reported in NPPES; status is on the state search
Practice location
170 Alameda DE Las Pulgas, Redwood City, CA 94062
Phone
(650) 367-5992
Enumerated
Sep 4, 2006
Record last updated
Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
Entity
Type 1 · individual
Public record from CMS NPPES (open it on the CMS NPI Registry). A record is not a license: verify it with the state board.
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Also registered at 170 Alameda DE Las Pulgas

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

  1. Sarah AbuseifHospitalist Physician1801281795
  2. David Adams, M.DEmergency Medicine Physician1891735643
  3. Michele AdkissonPerfusionist1831321447
  4. Jyothi Adsumilli, M.D.,Hospitalist Physician1245508159
  5. Ari AuwinitzkyPerfusionist1629585583
  6. Marjorie Berry Simon, LCSWClinical Social Worker1639477532

Verify Lewis Sandy Margolis in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G28798
    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

PlainDoctor does not match the HHS-OIG exclusion list to individual records: most entries carry no NPI. Search the OIG exclusion list by name.

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Lewis Sandy Margolis among 7,571 anesthesiology physician records in California

Lewis Sandy Margolis is one of 7,571 anesthesiology physician records with a practice address in California. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does not. Its NPI, issued in 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 53% newer
  • In a Medicare fileNo · 71% of these records are
  • In the CMS Doctors and Clinicians fileNo · 64% of these records are
  • Record last updated2007 · 63% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207L00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Anesthesiology Physician providers in California

There are 7,571 anesthesiology physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

The 8 anesthesiology physician records with the nearest ZIP codes

  1. Vicki Coe, M.DWoodside, CA 940621205976339
  2. Aviva Cohen, M.D.Redwood City, CA 940621962420364
  3. Robert Fisher, M.D.Redwood City, CA 940621801837000
  4. Daniel McFarland, M.D.Redwood City, CA 940621881795904
  5. Tad Nishimura, M.D.Redwood City, CA 940621720161672
  6. Debra ReinkingRedwood City, CA 940621548365083
  7. Timothy SchweitzerWoodside, CA 940621598954190
  8. Jeffrey ShapiroRedwood City, CA 940621396847893

Common questions

What is Lewis Sandy Margolis's NPI number?

Lewis Sandy Margolis's National Provider Identifier (NPI) is 1235231739, issued on Sep 4, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Lewis Sandy Margolis located?

The NPPES record lists a practice address at 170 Alameda DE Las Pulgas, Redwood City, CA, 94062. Phone: (650) 367-5992. Providers update this record themselves, so call before visiting.

How can I verify Lewis Sandy Margolis's license?

NPPES lists California license number G28798, 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.

Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. 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.