NPPES file of Aug 9, 2026

Mark W. Koukkari, M.D.

Neurology with Special Qualifications in Child Neurology Physician · San Jose, CA

Mark W. Koukkari, M.D. is a neurology with special qualifications in child neurology physician with a practice address in San Jose, California, and NPI 1750479929, issued on Oct 11, 2006. Check the license (California G74711, 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
1750479929
Name
Mark W. Koukkari
Credential
M.D.
Primary taxonomy
Neurology with Special Qualifications in Child Neurology Physician 2084N0402X
License number
G74711 CA
Self-reported in NPPES; status is on the state search
Practice location
2577 Samaritan Drive, San Jose, CA 95129
Phone
(408) 524-5700
Enumerated
Oct 11, 2006
Record last updated
Mar 22, 2016 (not updated in 10 years: call before relying on the address or phone)
Medicare enrollment
Enrolled (PECOS I20100623000699); accepts Medicare assignment
Medical or professional school
University Of Minnesota Medical School, 1990
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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Verify Mark W. Koukkari in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G74711
    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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36% fewer Medicare Part D claims than the average neurology with special qualifications in child neurology physician in 2024

179 Medicare Part D claims for 17 beneficiaries, against an average of 278 among the 900 providers of this specialty who prescribed in Part D. Brand-name drugs were 20% of claims.

  1. Mark Koukkari179
  2. Specialty average278

Most prescribed

  1. Zonisamide21 claims
  2. Fluvoxamine Maleate19 claims
  3. Risperidone18 claims
  4. Clonazepam14 claims
  5. Clonidine Hcl13 claims
  6. Lamotrigine13 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.

Bills Medicare through one group practice

  1. Sutter Bay Medical FoundationLos Altos, CA

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

Mark W. Koukkari among 271 neurology with special qualifications in child neurology physician records in California

Mark W. Koukkari, M.D. is one of 271 neurology with special qualifications in child neurology physician records with a practice address in California. 67% 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 2% of them.

  • NPI issued2006 · 2% of these records are older, 68% newer
  • In a Medicare fileYes · 67% of these records are
  • In the CMS Doctors and Clinicians fileYes · 33% of these records are
  • Graduated1990 · median 2011 among the 90 with a school on file
  • Record last updated2016 · 45% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2084N0402X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Neurology with Special Qualifications in Child Neurology Physician providers in California

There are 271 neurology with special qualifications in child neurology physician records in California.

The 8 neurology with special qualifications in child neurology physician records with the nearest ZIP codes

  1. Daniel Katzenberg, MD, PHDSan Jose, CA 951281235193319
  2. John Sum, MDSan Jose, CA 951281194745828
  3. Edward(ted) Guarino, M.D.San Jose, CA 951241558455741
  4. Jane Maclean, M.D.San Jose, CA 951241356578843
  5. Ann Robbins, MD, PHDSan Jose, CA 951241205397510
  6. Brandon Seminatore, MDSan Jose, CA 951241528599701
  7. Jorina Elbers, MDSanta Cruz, CA 950601508132457
  8. William Zinnanti, MD, PHDSanta Cruz, CA 950601497035893

Common questions

What is Mark W. Koukkari, M.D.'s NPI number?

Mark W. Koukkari, M.D.'s National Provider Identifier (NPI) is 1750479929, issued on Oct 11, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Mark W. Koukkari, M.D. located?

The NPPES record lists a practice address at 2577 Samaritan Drive, San Jose, CA, 95129. Phone: (408) 524-5700. Providers update this record themselves, so call before visiting.

How can I verify Mark W. Koukkari, M.D.'s license?

NPPES lists California license number G74711, 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 Mark W. Koukkari, M.D. prescribe under Medicare Part D?

In 2024, Mark W. Koukkari, M.D. had 179 Medicare Part D claims for 17 beneficiaries; the average among neurology with special qualifications in child neurology physician prescribers was 278. 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.