Registry data as of Aug 27, 2026

John Marakas, M.D

Internal Medicine Physician · Youngstown, OH

John Marakas, M.D is an internal medicine physician with a practice address in Youngstown, Ohio, and NPI 1598799140, issued on Jul 10, 2006. Check the license (Ohio 35049381, as entered in NPPES) on the State Medical Board of Ohio; the Medicare figures below come from public CMS files.

Record from CMS NPPES, loaded Aug 27, 2026 · Medicare files 2023 and 2024 · method · Verify with CMS →

NPPES recordas of Aug 27, 2026
1598799140
Name
John Marakas
Credential
M.D
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
35049381 OH
Self-reported in NPPES; status is on the state search
Practice location
901 Trailwood Dr, Youngstown, OH 44512
Phone
(330) 726-3000
Enumerated
Jul 10, 2006
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 901 Trailwood Dr

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

  1. Scott Agnew, M.D.Family Medicine Physician1306876628
  2. Louise Hayes, M.D.Pediatrics Physician1609800325
  3. Frances Kokos-Barber, DOFamily Medicine Physician1093410508
  4. Paul Lesnoski, D.O.Family Medicine Physician1639109994
  5. Marsia Manna, PA-CPhysician Assistant1164295036

Verify John Marakas in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersState Medical Board of Ohio
    Search for license 35049381
    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 Ohio 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.

5.5 times the Medicare Part D claims of the average internal medicine physician in 2024

15,236 Medicare Part D claims for 628 beneficiaries, against an average of 2,785 among the 127,794 providers of this specialty who prescribed in Part D. Brand-name drugs were 16% of claims. 334 claims were for opioids.

  1. John Marakas15,236
  2. Specialty average2,785

Most prescribed

  1. Atorvastatin Calcium778 claims
  2. Levothyroxine Sodium662 claims
  3. Rosuvastatin Calcium628 claims
  4. Amlodipine Besylate507 claims
  5. Metoprolol Succinate467 claims
  6. Lisinopril402 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 Medicare quality score for 2023: 100 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 score
  2. Costout of 100 · 30%
  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: $1,903.66

113 payments, mostly food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 65,274 providers of this specialty with any payment received $2,536.66 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. John Marakas$1,903.66
  2. Specialty average$2,536.66

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

2 hospital and facility affiliations

  1. Novacare Rehabilitation OF Ohio IncNiles, OH
  2. Triad Health Services LLCYoungstown, OH

Source: CMS Doctors and Clinicians affiliations; Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

130 internal medicine physician records list a Youngstown practice address

They are 130 of the 4,790 NPPES records with a Youngstown practice address, and 5,995 internal medicine physician records in Ohio.

Other internal medicine physician records in Ohio

  1. Evan Abalos, D.O.Toledo, OH1194163089
  2. Teah Abashidze, M.D.Cleveland, OH1336179647
  3. Rami Abboud, MDLorain, OH1487854972
  4. Walid Abboud, MDCleveland, OH1245295559
  5. Moshrik Abd-Alamir, M.D.Toledo, OH1386879054
  6. Jason Abdallah, M.D.Cuyahoga Falls, OH1093071565
  7. Saaid Abdel-Ghani, M.D.Columbus, OH1598926529
  8. Mohammed Abdelaziz, MDDayton, OH1831326701
  9. Bahaa Abdelghaffar, MDCleveland, OH1265954275
  10. John Abdelnour, MDCleveland, OH1114656931

Common questions

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

John Marakas, M.D's National Provider Identifier (NPI) is 1598799140, issued on Jul 10, 2006. An NPI identifies a provider in billing; it is not a license.

Where is John Marakas, M.D located?

The NPPES record lists a practice address at 901 Trailwood Dr, Youngstown, OH, 44512. Phone: (330) 726-3000. Providers update this record themselves, so call before visiting.

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

NPPES lists Ohio license number 35049381, as entered by the provider. Search the State Medical Board of Ohio at https://elicense.ohio.gov/oh_verifylicense. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does John Marakas, M.D prescribe under Medicare Part D?

In 2024, John Marakas, M.D had 15,236 Medicare Part D claims for 628 beneficiaries; the average among internal medicine physician prescribers was 2,785. Part D covers Medicare prescriptions only.

What is John Marakas, M.D's Medicare quality score?

The 2023 MIPS final score is 100 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), loaded Aug 27, 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.

Every figure on PlainDoctor is rendered directly from the federal CMS NPPES registry, Medicare Part D, MIPS, and Open Payments records, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 27, 2026.