NPPES file of Aug 9, 2026

Matthew Lamon, DO

Addiction Medicine (Family Medicine) Physician · Ventura, CA

Matthew Lamon, DO is an addiction medicine (family medicine) physician with a practice address in Ventura, California, and NPI 1356835243, issued on Jun 14, 2018. Check the license (California 20A17818, 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 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1356835243
Name
Matthew Lamon
Credential
DO
Primary taxonomy
Addiction Medicine (Family Medicine) Physician 207QA0401X
License number
20A17818 CA
Self-reported in NPPES; status is on the state search
Practice location
300 Hillmont Ave, Bldg 340, Suite 201, Ventura, CA 93003
Phone
(805) 652-6100
Enumerated
Jun 14, 2018
Record last updated
Jul 13, 2023
Fax
(805) 652-3252
Medicare enrollment
Enrolled (PECOS I20220331003148); accepts Medicare assignment
Medical or professional school
University Of North Texas Hsc, College Of Osteopathic Med, 2018
Telehealth
Offers telehealth (CMS)
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 300 Hillmont Ave, Bldg 340, Suite 201

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

  1. Samuel Grossman, MDFamily Medicine Physician1538653415
  2. John Nuhn, MDFamily Medicine Physician1144714973

Verify Matthew Lamon in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A17818
    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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33% fewer Medicare Part D claims than the average addiction medicine (family medicine) physician in 2024

445 Medicare Part D claims for 49 beneficiaries, against an average of 664 among the 581 providers of this specialty who prescribed in Part D. 17 claims were for opioids.

  1. Matthew Lamon445
  2. Specialty average664

Most prescribed

  1. Lisinopril39 claims
  2. Albuterol Sulfate Hfa23 claims
  3. Amlodipine Besylate20 claims
  4. Bupropion Xl20 claims
  5. Rosuvastatin Calcium15 claims
  6. Atorvastatin Calcium14 claims

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.

The practice group's MIPS final score for 2023 (Medicare payment program): 87.2 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 score84.1
  2. Costout of 100 · 30%56.5
  3. Promoting interoperabilityout of 100 · 25%100.0
  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).

Industry payments in 2024: $194.95

9 payments; by number, the most common kind was food and beverage; the largest payer was Indivior Inc. The 305 providers of this specialty with any payment received $1,151.00 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Matthew Lamon$194.95
  2. Specialty average$1,151.00

Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.

Bills Medicare through one group practice

  1. County OF VenturaVentura, CA

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

Matthew Lamon among 124 addiction medicine (family medicine) physician records in California

Matthew Lamon, DO is one of 124 addiction medicine (family medicine) physician records with a practice address in California. 78% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2018, is newer than 69% of them.

  • NPI issued2018 · 69% of these records are older, 25% newer
  • In a Medicare fileYes · 78% of these records are
  • In the CMS Doctors and Clinicians fileYes · 52% of these records are
  • Graduated2018 · median 2015 among the 64 with a school on file
  • Record last updated2023 · 33% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207QA0401X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Addiction Medicine (Family Medicine) Physician providers in California

There are 124 addiction medicine (family medicine) physician records in California.

The 8 addiction medicine (family medicine) physician records with the nearest ZIP codes

  1. Lorenz Choi, DOVentura, CA 930031619592623
  2. Christopher Fernandez, DOVentura, CA 930031902427404
  3. Alexander Howard, DOVentura, CA 930031528707593
  4. Tipu Khan, M.D.Ventura, CA 930031801059555
  5. Morgan Kirkpatrick, MDVentura, CA 930031457915795
  6. Olivia NguyenVentura, CA 930031902478779
  7. Oluwatumininu Oludemi, DOVentura, CA 930031013656883
  8. Nataliya Panivska, DOVentura, CA 930031821619529

Common questions

What is Matthew Lamon, DO's NPI number?

Matthew Lamon, DO's National Provider Identifier (NPI) is 1356835243, issued on Jun 14, 2018. An NPI identifies a provider in billing; it is not a license.

Where is Matthew Lamon, DO located?

The NPPES record lists a practice address at 300 Hillmont Ave, Bldg 340, Suite 201, Ventura, CA, 93003. Phone: (805) 652-6100. Providers update this record themselves, so call before visiting.

How can I verify Matthew Lamon, DO's license?

NPPES lists California license number 20A17818, 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 Matthew Lamon, DO prescribe under Medicare Part D?

In 2024, Matthew Lamon, DO had 445 Medicare Part D claims for 49 beneficiaries; the average among addiction medicine (family medicine) physician prescribers was 664. Part D covers Medicare prescriptions only.

What is Matthew Lamon, DO's MIPS final score?

The 2023 MIPS final score is 87.2 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.

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.