NPPES file of Aug 9, 2026

John S. Tsakonas, M.D.

Cardiovascular Disease Physician · Encino, CA

John S. Tsakonas, M.D. is a cardiovascular disease physician with a practice address in Encino, California, and NPI 1851384499, issued on Aug 30, 2005. Check the license (California G62791, 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
1851384499
Name
John S. Tsakonas
Credential
M.D.
Primary taxonomy
Cardiovascular Disease Physician 207RC0000X
License number
G62791 CA
Self-reported in NPPES; status is on the state search
Practice location
16542 Ventura Blvd, Encino, CA 91436
Phone
(818) 782-5041
Enumerated
Aug 30, 2005
Record last updated
Aug 12, 2022
Fax
(818) 205-9091
Medicaid ID
00G627910 CA
Medicare enrollment
Enrolled (PECOS I20090623000310); accepts Medicare assignment
Medical or professional school
State University Of New York At Stony Brook, School Of Medicine, 1982
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 16542 Ventura Blvd

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

  1. Jana Albright, MFTIMarriage & Family Therapist1386175842
  2. Randall Gates, MFTMental Health Counselor1750658233
  3. Rob Jost, MFTMarriage & Family Therapist1538693908
  4. Leo Kassabian, M.D.Cardiovascular Disease Physician1184617763
  5. Dalia KenigMental Health Counselor1124457833
  6. Sam Khorsandi, D.D.SPeriodontics1629109996

Verify John S. Tsakonas in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersMedical Board of California
    Search for license G62791
    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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54% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024

1,429 Medicare Part D claims for 290 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims.

  1. John Tsakonas1,429
  2. Specialty average3,078

Most prescribed

  1. Metoprolol Succinate311 claims
  2. Atorvastatin Calcium159 claims
  3. Eliquis122 claims
  4. Furosemide102 claims
  5. Rosuvastatin Calcium63 claims
  6. Amlodipine Besylate55 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.

No measured MIPS final score for 2023

CMS assigned the neutral MIPS final score of 75 without scoring Quality, Cost, Promoting Interoperability or Improvement Activities. It is an administrative threshold, so PlainDoctor does not compare it with measured clinicians.

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

Industry payments in 2024: $106.78

4 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, Inc. The 16,686 providers of this specialty with any payment received $3,819.56 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. John Tsakonas$106.78
  2. Specialty average$3,819.56

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

Bills Medicare through 2 group practices

  1. Beverly Radiology Medical Group IIIEncino, CA
  2. Cardiovascular Consultants Medical GroupEncino, CA

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

John S. Tsakonas among 2,574 cardiovascular disease physician records in California

John S. Tsakonas, M.D. is one of 2,574 cardiovascular disease physician records with a practice address in California. 83% 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, 90% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 68% of these records are
  • Graduated1982 · median 1999 among the 1,742 with a school on file
  • Record last updated2022 · 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 207RC0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Cardiovascular Disease Physician providers in California

There are 2,574 cardiovascular disease physician records in California.

The 8 cardiovascular disease physician records with the nearest ZIP codes

  1. James Fleisher, M.D.Encino, CA 914361710041652
  2. Jerome Hamburger, M.D.Encino, CA 914361982710810
  3. James Higgins, M.D.Encino, CA 914361982781191
  4. Leo Kassabian, M.D.Encino, CA 914361184617763
  5. Joel Lebovitz, MDEncino, CA 914361760448963
  6. Sohail Mahboubian, M.D.Encino, CA 914361295750164
  7. Mariappan Pandian, M.D.Encino, CA 914361699768275
  8. Sahar Sohrabian, MDEncino, CA 914361114125994

Common questions

What is John S. Tsakonas, M.D.'s NPI number?

John S. Tsakonas, M.D.'s National Provider Identifier (NPI) is 1851384499, issued on Aug 30, 2005. An NPI identifies a provider in billing; it is not a license.

Where is John S. Tsakonas, M.D. located?

The NPPES record lists a practice address at 16542 Ventura Blvd, Encino, CA, 91436. Phone: (818) 782-5041. Providers update this record themselves, so call before visiting.

How can I verify John S. Tsakonas, M.D.'s license?

NPPES lists California license number G62791, 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 S. Tsakonas, M.D. prescribe under Medicare Part D?

In 2024, John S. Tsakonas, M.D. had 1,429 Medicare Part D claims for 290 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. Part D covers Medicare prescriptions only.

What is John S. Tsakonas, M.D.'s MIPS final score?

CMS assigned the neutral MIPS final score of 75 for 2023 without scoring any category, so it is not a measured result.

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.