NPPES file of Aug 9, 2026

David McNamara Lewis, M.D.

Anesthesiology Physician · Fremont, CA

David McNamara Lewis, M.D. is an anesthesiology physician with a practice address in Fremont, California, and NPI 1528077856, issued on Aug 5, 2006. Check the license (California G65631, 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 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1528077856
Name
David McNamara Lewis
Credential
M.D.
Primary taxonomy
Anesthesiology Physician 207L00000X
License number
G65631 CA
Self-reported in NPPES; status is on the state search
Practice location
3200 Kearney St., Fremont, CA 94538
Phone
(510) 490-1222
Enumerated
Aug 5, 2006
Record last updated
May 29, 2020 (not updated in 6 years: call before relying on the address or phone)
Medicaid ID
00G656311 CA
Medicare enrollment
Enrolled (PECOS I20090313000143); accepts Medicare assignment
Medical or professional school
Wayne State University School Of Medicine, 1987
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 anesthesiology physician records → All 7,571 in California → Look up another NPI →

Also registered at 3200 Kearney St.

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

  1. Allison Carmichael, M.D.Endocrinology, Diabetes & Metabolism Physician1942553391
  2. Elizabeth Jokerst, M.D.Family Medicine Physician1164518098
  3. Ann Mallat, MDAnesthesiology Physician1295767549
  4. Taliva Martin, M.D.Ophthalmology Physician1386822112
  5. Brian Nagai, M.D.Diagnostic Radiology Physician1467493536
  6. Lily Ngo, MDPediatrics Physician1912102328

Verify David McNamara Lewis in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G65631    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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Bills Medicare through one group practice

  1. Sutter Bay Medical FoundationFremont, CA

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

David McNamara Lewis among 7,571 anesthesiology physician records in California

David McNamara Lewis, M.D. 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. Its NPI, issued in 2006, is newer than 5% of them.

  • NPI issued2006 · 5% of these records are older, 53% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 64% of these records are
  • Graduated1987 · median 2006 among the 4,868 with a school on file
  • Record last updated2020 · 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.

All 7,571 in California → Every provider in Fremont → Anesthesiology Physician nationwide →

The 8 anesthesiology physician records with the nearest ZIP codes

  1. Joseph Callahan, M.D.Fremont, CA 945381992714240
  2. Franklin Chow, MDFremont, CA 945381427086289
  3. Paul Goehner, M.D.Fremont, CA 945381710996277
  4. Raghu KatragaddaFremont, CA 945381851391833
  5. Edwin Lee, M.D.Fremont, CA 945381710996160
  6. Ann Mallat, MDFremont, CA 945381295767549
  7. Nasrin Naimi, M.D.Fremont, CA 945381922054311
  8. Ethan Nicholls, M.D.Fremont, CA 945381801805106

Common questions

What is David McNamara Lewis, M.D.'s NPI number?

David McNamara Lewis, M.D.'s National Provider Identifier (NPI) is 1528077856, issued on Aug 5, 2006. An NPI identifies a provider in billing; it is not a license.

Where is David McNamara Lewis, M.D. located?

The NPPES record lists a practice address at 3200 Kearney St., Fremont, CA, 94538. Phone: (510) 490-1222. Providers update this record themselves, so call before visiting.

How can I verify David McNamara Lewis, M.D.'s license?

NPPES lists California license number G65631, 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. 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.