NPPES file of Aug 9, 2026

Lawrence A. Machtinger, M.D.

Dermatopathology (Pathology) Physician · Laguna Beach, CA

Lawrence A. Machtinger, M.D. is a dermatopathology (pathology) physician with a practice address in Laguna Beach, California, and NPI 1750488607, issued on Sep 20, 2006. Check the license (California G67769, 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 · Medicare files 2023 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1750488607
Name
Lawrence A. Machtinger
Credential
M.D.
Primary taxonomy
Dermatopathology (Pathology) Physician 207ZD0900X
License number
G67769 CA
Self-reported in NPPES; status is on the state search
Practice location
31872 Coast Hwy, Laguna Beach, CA 92651
Phone
(949) 499-7288
Enumerated
Sep 20, 2006
Record last updated
May 27, 2016 (not updated in 10 years: call before relying on the address or phone)
Medicaid ID
00G677690 CA
Medicare enrollment
Enrolled (PECOS I20100603000830); accepts Medicare assignment
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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Also registered at 31872 Coast Hwy

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

  1. Andrew Adams, MDEmergency Medicine Physician1174085260
  2. Stuart Anderson, M.D.Anesthesiology Physician1306869201
  3. Mary Ashkenaze, M.D.Emergency Medicine Physician1912011453
  4. Josephine BangPharmacist1487313573
  5. Ronald Barr, M.D.Dermatopathology (Pathology) Physician1972608016
  6. Nancy Boerner, M.D.Internal Medicine Physician1154416451

Verify Lawrence A. Machtinger in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G67769    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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The practice group's MIPS final score for 2023 (Medicare payment program): 79.4 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.

  1. Qualityout of 100 · 30% of the final score75.7
  2. Costnot scored (reweighted)
  3. Promoting interoperabilitynot scored (reweighted)
  4. Improvement activities40 of 40 points · 15%100.0

Source: CMS Quality Payment Program, MIPS performance year 2023, group reporting; category weights for 2023 (qpp.cms.gov).

Bills Medicare through one group practice

  1. Newport Harbor Pathology Medical Group IncNewport Beach, CA

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

6 dermatopathology (pathology) physician records list a practice address in Laguna Beach

They are 6 of the 505 NPPES records with a practice address in Laguna Beach, and 47 dermatopathology (pathology) physician records in California.

All 6 in Laguna Beach → All 47 in California → Every provider in Laguna Beach →

Other dermatopathology (pathology) physician records in California

  1. Nima Amini, M.D.Los Angeles, CA1225456726
  2. Masoud Asgari, M.D.San Ramon, CA1467806356
  3. Ronald Barr, M.D.Laguna Beach, CA1972608016
  4. Hugh Byers, M.D.San Luis Obispo, CA1154451243
  5. Salma Dabiri, M.D.Los Gatos, CA1700074143
  6. Raul Delrosario, M.D.Laguna Beach, CA1548367402
  7. Julie Duquette, M.D.Newport Beach, CA1659471498
  8. Julian Garcia, MDPalmdale, CA1790818201
  9. Gregory Gates, D.O.Los Angeles, CA1902870892
  10. Emily Green, MDTravis Afb, CA1750476826

Common questions

What is Lawrence A. Machtinger, M.D.'s NPI number?

Lawrence A. Machtinger, M.D.'s National Provider Identifier (NPI) is 1750488607, issued on Sep 20, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Lawrence A. Machtinger, M.D. located?

The NPPES record lists a practice address at 31872 Coast Hwy, Laguna Beach, CA, 92651. Phone: (949) 499-7288. Providers update this record themselves, so call before visiting.

How can I verify Lawrence A. Machtinger, M.D.'s license?

NPPES lists California license number G67769, 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 Lawrence A. Machtinger, M.D.'s MIPS final score?

The 2023 MIPS final score is 79.4 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.

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.