NPPES file of Aug 9, 2026

Laurence Jay Marton, M.D.

Clinical Pathology/Laboratory Medicine Physician · Palo Alto, CA

Laurence Jay Marton, M.D. is a clinical pathology/laboratory medicine physician with a practice address in Palo Alto, California, and NPI 1265678833, issued on Jan 1, 2009. Check the license (California G18863, 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
1265678833
Name
Laurence Jay Marton
Credential
M.D.
Primary taxonomy
Clinical Pathology/Laboratory Medicine Physician 207ZP0105X
License number
G18863 CA
Self-reported in NPPES; status is on the state search
Practice location
581 Military Way, Palo Alto, CA 94306
Phone
(650) 494-1818
Enumerated
Jan 1, 2009
Record last updated
Jan 1, 2009 (not updated in 17 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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Verify Laurence Jay Marton in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G18863
    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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Clinical Pathology/Laboratory Medicine Physician providers in California

There are 131 clinical pathology/laboratory medicine physician records in California. No Medicare prescribing, quality score, industry payment or hospital affiliation is published for this NPI.

Other clinical pathology/laboratory medicine physician records in California

  1. Liya AbramyanTorrance, CA1316134612
  2. Maryam Ahmadi, MDOrange, CA1003497678
  3. Marie-Rose Akin, MDFresno, CA1518988377
  4. Hadassa AlexanderLos Angeles, CA1982435780
  5. Raymond Aller, M.D.Vista, CA1346304268
  6. Gloria AsuncionMartinez, CA1659416873
  7. Ryan Austin, M.D.La Jolla, CA1235470014
  8. Frederick Axelrod, MDSan Bernardino, CA1558535740
  9. Arthur Baca, M.D., PH.D.Alameda, CA1326248816
  10. Bonnie Balzer, MDWest Hollywood, CA1649247602

Common questions

What is Laurence Jay Marton, M.D.'s NPI number?

Laurence Jay Marton, M.D.'s National Provider Identifier (NPI) is 1265678833, issued on Jan 1, 2009. An NPI identifies a provider in billing; it is not a license.

Where is Laurence Jay Marton, M.D. located?

The NPPES record lists a practice address at 581 Military Way, Palo Alto, CA, 94306. Phone: (650) 494-1818. Providers update this record themselves, so call before visiting.

How can I verify Laurence Jay Marton, M.D.'s license?

NPPES lists California license number G18863, 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.