NPPES file of Aug 9, 2026

John Luke Mariano, MD

Medical Oncology Physician · Rochester, NY

John Luke Mariano, MD is a medical oncology physician with a practice address in Rochester, New York, and NPI 1548794126, issued on Apr 20, 2017. Check the license (New York 311749, as entered in NPPES) on the NYS Education Department, Office of the Professions; 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
1548794126
Name
John Luke Mariano
Credential
MD
Primary taxonomy
Medical Oncology Physician 207RX0202X
License number
311749 NY
Self-reported in NPPES; status is on the state search
Practice location
601 Elmwood Ave, Rochester, NY 14642
Phone
(585) 275-2222
Enumerated
Apr 20, 2017
Record last updated
May 28, 2025
Medicare enrollment
Enrolled (PECOS I20250728000980); accepts Medicare assignment
Medical or professional school
University Of Rochester School Of Medicine And Dentistry, 2017
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 601 Elmwood Ave

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

  1. Asli Saba Abaci, M.D.Child & Adolescent Psychiatry Physician1538100961
  2. Syed Faiz Abbas, MDCardiovascular Disease Physician1316557853
  3. Asim Abbasi, MDPediatric Emergency Medicine (Pediatrics) Physician1336155456
  4. Cameron Abbey-Mott, PHARMDSolid Organ Transplant Pharmacist1124953625
  5. Jessica Abbott, PHARMD, RPHPharmacist1548120272
  6. Maisa Abdalla, M.D.Gastroenterology Physician1669645222

Verify John Luke Mariano in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersNYS Education Department, Office of the Professions
    Search for license 311749
    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 New York 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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92% fewer Medicare Part D claims than the average medical oncology physician in 2024

54 Medicare Part D claims for 32 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D.

  1. John Mariano54
  2. Specialty average703

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 2 group practices

  1. Hematology Clinical GroupRochester, NY
  2. University OF RochesterRochester, NY

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

John Luke Mariano among 548 medical oncology physician records in New York

John Luke Mariano, MD is one of 548 medical oncology physician records with a practice address in New York. 80% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2017, is newer than 86% of them.

  • NPI issued2017 · 86% of these records are older, 12% newer
  • In a Medicare fileYes · 80% of these records are
  • In the CMS Doctors and Clinicians fileYes · 71% of these records are
  • Graduated2017 · median 2005 among the 389 with a school on file
  • Record last updated2025 · 60% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RX0202X and a New York practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Medical Oncology Physician providers in New York

There are 548 medical oncology physician records in New York.

The 8 medical oncology physician records with the nearest ZIP codes

  1. Nabeel Badri, M.DRochester, NY 146421700298064
  2. Megan Baumgart, M.D.Rochester, NY 146421881896157
  3. Susan Dent, MDRochester, NY 146421912482498
  4. Nayana Kamath, M.D.Rochester, NY 146421386886364
  5. Maria McGreevy, MDRochester, NY 146421659734366
  6. Daniel Mulkerin, MDRochester, NY 146421063473411
  7. Marcus Noel, MDRochester, NY 146421568634814
  8. Ruth O'Regan, MDRochester, NY 146421215981238

Common questions

What is John Luke Mariano, MD's NPI number?

John Luke Mariano, MD's National Provider Identifier (NPI) is 1548794126, issued on Apr 20, 2017. An NPI identifies a provider in billing; it is not a license.

Where is John Luke Mariano, MD located?

The NPPES record lists a practice address at 601 Elmwood Ave, Rochester, NY, 14642. Phone: (585) 275-2222. Providers update this record themselves, so call before visiting.

How can I verify John Luke Mariano, MD's license?

NPPES lists New York license number 311749, as entered by the provider. Search the NYS Education Department, Office of the Professions at https://www.op.nysed.gov/services/verifications/online-verification-searches. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does John Luke Mariano, MD prescribe under Medicare Part D?

In 2024, John Luke Mariano, MD had 54 Medicare Part D claims for 32 beneficiaries; the average among medical oncology physician prescribers was 703. 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.