NPPES file of Aug 9, 2026

James Michael Isaacs

Medical Oncology Physician · Cleveland, OH

James Michael Isaacs is a medical oncology physician with a practice address in Cleveland, Ohio, and NPI 1629423934, issued on Apr 25, 2016. Check the license (Ohio 35.144466, 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
1629423934
Name
James Michael Isaacs
Primary taxonomy
Medical Oncology Physician 207RX0202X
License number
35.144466 OH
Self-reported in NPPES; status is on the state search
Practice location
10201 Carnegie Ave, Cleveland, OH 44106
Phone
(866) 223-8100
Enumerated
Apr 25, 2016
Record last updated
Jul 12, 2022
Medicare enrollment
Enrolled (PECOS I20220729001070); accepts Medicare assignment
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 10201 Carnegie Ave

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

  1. Troy Adair, PHARMDPharmacist1992231831
  2. Salem Alfaifi, MDRadiation Oncology Physician1437675741
  3. Azka Ali, MDHematology & Oncology Physician1104203645
  4. Maddison Amerio, CNPNurse Practitioner1215613526
  5. Meghan Beaufait, C-NPNurse Practitioner1962240614
  6. Emily BoppHematology & Oncology Physician1760185995

Verify James Michael Isaacs 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 35.144466
    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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67% fewer Medicare Part D claims than the average medical oncology physician in 2024

235 Medicare Part D claims for 52 beneficiaries, against an average of 703 among the 4,230 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims. 14 claims were for opioids.

  1. James Isaacs235
  2. Specialty average703

Most prescribed

  1. Prednisone22 claims
  2. Levothyroxine Sodium18 claims
  3. Pantoprazole Sodium16 claims
  4. Sulfamethoxazole-Trimethoprim14 claims
  5. Oxycodone Hcl13 claims
  6. Olanzapine12 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: $215.02

2 payments; by number, the most common kind was food and beverage; the largest payer was E.R. Squibb & Sons, L.L.C. The 3,343 providers of this specialty with any payment received $11,773.47 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. James Isaacs$215
  2. Specialty average$11,773

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

One hospital affiliation

  1. Cleveland ClinicCleveland, OH · Acute Care Hospitals4 of 5 stars

Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through); hospitals matched to CMS Hospital General Information (Care Compare) (data.cms.gov). Star ratings are CMS hospital ratings, not ratings of this provider.

James Michael Isaacs among 169 medical oncology physician records in Ohio

James Michael Isaacs is one of 169 medical oncology physician records with a practice address in Ohio. 85% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2016, is newer than 83% of them.

  • NPI issued2016 · 83% of these records are older, 13% newer
  • In a Medicare fileYes · 85% of these records are
  • In the CMS Doctors and Clinicians fileYes · 79% of these records are
  • Graduated2016 · median 2006 among the 132 with a school on file
  • Record last updated2022 · 41% 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 Ohio 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 Ohio

There are 169 medical oncology physician records in Ohio.

The 8 medical oncology physician records with the nearest ZIP codes

  1. Lauren Chiec, MDCleveland, OH 441061932594728
  2. Sonia Margarida Duarte De Oliveira, MDCleveland, OH 441061841188042
  3. Won Jin Ho, M.D.Cleveland, OH 441061306188719
  4. Melinda Hsu, M.D.Cleveland, OH 441061235543208
  5. Suneel KamathCleveland, OH 441061215270343
  6. Smitha Krishnamurthi, MDCleveland, OH 441061487670147
  7. Tiffany Onger, MDCleveland, OH 441061316333511
  8. Jennifer Selfridge, M.D.Cleveland, OH 441061942620562

Common questions

What is James Michael Isaacs's NPI number?

James Michael Isaacs's National Provider Identifier (NPI) is 1629423934, issued on Apr 25, 2016. An NPI identifies a provider in billing; it is not a license.

Where is James Michael Isaacs located?

The NPPES record lists a practice address at 10201 Carnegie Ave, Cleveland, OH, 44106. Phone: (866) 223-8100. Providers update this record themselves, so call before visiting.

How can I verify James Michael Isaacs's license?

NPPES lists Ohio license number 35.144466, 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 James Michael Isaacs prescribe under Medicare Part D?

In 2024, James Michael Isaacs had 235 Medicare Part D claims for 52 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.