NPPES file of Aug 9, 2026

John G. Alevizos, DO

Adult Medicine Physician · Irvine, CA

John G. Alevizos, DO is an adult medicine physician with a practice address in Irvine, California, and NPI 1689671380, issued on Jul 7, 2005. Check the license (California 20A6108, 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 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1689671380
Name
John G. Alevizos
Credential
DO
Primary taxonomy
Adult Medicine Physician 207QA0505X
License number
20A6108 CA
Self-reported in NPPES; status is on the state search
Practice location
15751 Rockfield Blvd, Irvine, CA 92618
Phone
(949) 206-9100
Enumerated
Jul 7, 2005
Record last updated
Aug 22, 2013 (not updated in 13 years: call before relying on the address or phone)
Fax
(949) 206-1648
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 15751 Rockfield Blvd

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

  1. Sonya Buchanan, M.D.Occupational Medicine Physician1053439083
  2. Both Huk, PAMedical Physician Assistant1902015076
  3. Kathy McGraw, P.A.Medical Physician Assistant1477784874
  4. Brandon Nguyen, D.C.Chiropractor1700071669

Verify John G. Alevizos in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license 20A6108
    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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79% fewer Medicare Part D claims than the average adult medicine physician in 2024

618 Medicare Part D claims for 67 beneficiaries, against an average of 3,002 among the 1,307 providers of this specialty who prescribed in Part D. Brand-name drugs were 10% of claims. 33 claims were for opioids.

  1. John Alevizos618
  2. Specialty average3,002

Most prescribed

  1. Testosterone Cypionate81 claims
  2. Progesterone52 claims
  3. Hydrocodone-Acetaminophen32 claims
  4. Alprazolam30 claims
  5. Estradiol27 claims
  6. Lorazepam24 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.

Industry payments in 2024: $112.30

5 payments; by number, the most common kind was food and beverage; the largest payer was Novo Nordisk Inc. The 664 providers of this specialty with any payment received $1,405.95 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. John Alevizos$112.30
  2. Specialty average$1,405.95

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

John G. Alevizos among 386 adult medicine physician records in California

John G. Alevizos, DO is one of 386 adult medicine physician records with a practice address in California. 69% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 97% newer
  • In a Medicare fileYes · 69% of these records are
  • In the CMS Doctors and Clinicians fileNo · 48% of these records are
  • Record last updated2013 · 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 207QA0505X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Adult Medicine Physician providers in California

There are 386 adult medicine physician records in California.

The 8 adult medicine physician records with the nearest ZIP codes

  1. Cecilia Pham, DOCosta Mesa, CA 926261962031294
  2. Raul Miranda, MDCosta Mesa, CA 926271407895006
  3. Falguni Patel, FNPIrvine, CA 926041316752991
  4. Michael Shaw, MDIrvine, CA 926041952369225
  5. Floragrace Surell, M.D.Irvine, CA 926021265966386
  6. Irwin Arluk, M.D.Laguna Woods, CA 926371982632774
  7. James Kabellis, MDWildomar, CA 925951073193629
  8. Anita Jackson, M.D.Temecula, CA 925911063519486

Common questions

What is John G. Alevizos, DO's NPI number?

John G. Alevizos, DO's National Provider Identifier (NPI) is 1689671380, issued on Jul 7, 2005. An NPI identifies a provider in billing; it is not a license.

Where is John G. Alevizos, DO located?

The NPPES record lists a practice address at 15751 Rockfield Blvd, Irvine, CA, 92618. Phone: (949) 206-9100. Providers update this record themselves, so call before visiting.

How can I verify John G. Alevizos, DO's license?

NPPES lists California license number 20A6108, 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 John G. Alevizos, DO prescribe under Medicare Part D?

In 2024, John G. Alevizos, DO had 618 Medicare Part D claims for 67 beneficiaries; the average among adult medicine physician prescribers was 3,002. Part D covers Medicare prescriptions only.

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.