NPPES file of Aug 9, 2026

John Alexander Masino, MD, PHD

Radiation Oncology Physician · Cincinnati, OH

John Alexander Masino, MD, PHD is a radiation oncology physician with a practice address in Cincinnati, Ohio, and NPI 1659674083, issued on Dec 7, 2010. Check the license (Ohio 35.126990, as entered in NPPES) on the State Medical Board of Ohio; 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
1659674083
Name
John Alexander Masino
Credential
MD, PHD
Primary taxonomy
Radiation Oncology Physician 2085R0001X
License numbers
35.126990 OH
57.018402 OH
Self-reported in NPPES; status is on the state search
Practice location
2139 Auburn Ave, Cincinnati, OH 45219
Phone
(513) 585-0855
Enumerated
Dec 7, 2010
Record last updated
Nov 15, 2022
Medicare enrollment
Enrolled (PECOS I20150903001704); accepts Medicare assignment
Medical or professional school
University Of Cincinnati College Of Medicine, 2010
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 2139 Auburn Ave

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

  1. Nadine AboumerhiAnesthesiologist Assistant1568083640
  2. Michael Acheson, RNCertified Registered Nurse Anesthetist1164418877
  3. Hannah Adams, PHARMD, BCCCPPharmacist Clinician (PhC)/ Clinical Pharmacy Specialist1114596285
  4. Mayeesha Ahmed, PHARMDPharmacist1447936208
  5. Joseph Aitken, CAAAnesthesiologist Assistant1033914080
  6. Andrew AllanAcute Care Nurse Practitioner1649815713

Verify John Alexander Masino 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 35.126990
    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.

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72% fewer Medicare Part D claims than the average radiation oncology physician in 2024

38 Medicare Part D claims for 32 beneficiaries, against an average of 134 among the 4,851 providers of this specialty who prescribed in Part D. Brand-name drugs were 29% of claims.

  1. John Masino38
  2. Specialty average134

Most prescribed

  1. Tamsulosin Hcl13 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: $19.68

1 payment: food and beverage; the largest payer was Boston Scientific Corporation. The 3,275 providers of this specialty with any payment received $1,897.85 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. John Masino$19.68
  2. Specialty average$1,897.85

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

Bills Medicare through 3 group practices

  1. Central Ohio Urology Group, LLC.Gahanna, OH
  2. North Central Ohio Family Care Center IncOntario, OH
  3. Radiology IncColumbus, OH

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

John Alexander Masino among 298 radiation oncology physician records in Ohio

John Alexander Masino, MD, PHD is one of 298 radiation oncology physician records with a practice address in Ohio. 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 2010, is newer than 55% of them.

  • NPI issued2010 · 55% of these records are older, 42% newer
  • In a Medicare fileYes · 83% of these records are
  • In the CMS Doctors and Clinicians fileYes · 76% of these records are
  • Graduated2010 · median 2008 among the 226 with a school on file
  • Record last updated2022 · 50% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 2085R0001X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Radiation Oncology Physician providers in Ohio

There are 298 radiation oncology physician records in Ohio.

The 8 radiation oncology physician records with the nearest ZIP codes

  1. William Barrett, MDCincinnati, OH 452191124010228
  2. John Breneman, MDCincinnati, OH 452191922090075
  3. Emily Daugherty, MDCincinnati, OH 452191285073569
  4. Natalie Geier, M.D.Cincinnati, OH 452191851735252
  5. David GiusCincinnati, OH 452191447589734
  6. Kris Huang, MDCincinnati, OH 452191861641458
  7. Jordan Kharofa, MDCincinnati, OH 452191699917088
  8. David Long, MDCincinnati, OH 452191902223324

Common questions

What is John Alexander Masino, MD, PHD's NPI number?

John Alexander Masino, MD, PHD's National Provider Identifier (NPI) is 1659674083, issued on Dec 7, 2010. An NPI identifies a provider in billing; it is not a license.

Where is John Alexander Masino, MD, PHD located?

The NPPES record lists a practice address at 2139 Auburn Ave, Cincinnati, OH, 45219. Phone: (513) 585-0855. Providers update this record themselves, so call before visiting.

How can I verify John Alexander Masino, MD, PHD's license?

NPPES lists Ohio license number 35.126990, 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 Alexander Masino, MD, PHD prescribe under Medicare Part D?

In 2024, John Alexander Masino, MD, PHD had 38 Medicare Part D claims for 32 beneficiaries; the average among radiation oncology physician prescribers was 134. 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.