NPPES file of Aug 9, 2026

Isabelle M. Ayoub, M.D

Nephrology Physician · Columbus, OH

Isabelle M. Ayoub, M.D is a nephrology physician with a practice address in Columbus, Ohio, and NPI 1669617221, issued on Dec 11, 2008. Check the license (Ohio 35122963, 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 2023 and 2024 · method · Verify with CMS →

NPPES recordNPPES file of Aug 9, 2026
1669617221
Name
Isabelle M. Ayoub
Credential
M.D
Primary taxonomy
Nephrology Physician 207RN0300X
License number
35122963 OH
Self-reported in NPPES; status is on the state search
Practice location
543 Taylor Ave, Columbus, OH 43203
Phone
(614) 293-4837
Enumerated
Dec 11, 2008
Record last updated
Jan 2, 2025
Fax
(614) 293-3125
Medicare enrollment
Enrolled (PECOS I20150717001649); 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 543 Taylor Ave

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

  1. Amber Abukwiek, APRN-CNPNurse Practitioner1750154233
  2. Faraz Ahmad, M.D.Family Medicine Physician1467896621
  3. Amanda Albert, APRN-CNPAcute Care Nurse Practitioner1134898109
  4. Dharman Annadurai, MDPulmonary Disease Physician1649383134
  5. Patrice Arehart, MDPsychiatry Physician1760571517
  6. Fred Armstrong, PA-CMedical Physician Assistant1780775213

Verify Isabelle M. Ayoub 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 35122963
    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

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68% fewer Medicare Part D claims than the average nephrology physician in 2024

465 Medicare Part D claims for 69 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 22% of claims.

  1. Isabelle Ayoub465
  2. Specialty average1,465

Most prescribed

  1. Losartan Potassium49 claims
  2. Spironolactone35 claims
  3. Lisinopril32 claims
  4. Carvedilol26 claims
  5. Sulfamethoxazole-Trimethoprim25 claims
  6. Farxiga22 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 MIPS final score for 2023 (Medicare payment program): 95.3 of 100

The Merit-based Incentive Payment System score is reported for this clinician. 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 score76.6
  2. Costnot scored (reweighted)
  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; category weights for 2023 (qpp.cms.gov).

Industry payments in 2024: $33,982.19

28 payments; by number, the most common kind was travel and lodging; the largest payer was F. Hoffmann-La Roche AG. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Isabelle Ayoub$33,982
  2. Specialty average$3,091

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

Bills Medicare through one group practice

  1. Osu Internal Medicine LLCColumbus, OH

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

Isabelle M. Ayoub among 499 nephrology physician records in Ohio

Isabelle M. Ayoub, M.D is one of 499 nephrology physician records with a practice address in Ohio. 84% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2008, is newer than 61% of them.

  • NPI issued2008 · 61% of these records are older, 33% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 75% of these records are
  • Graduated2005 · median 2002 among the 374 with a school on file
  • Record last updated2025 · 62% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Nephrology Physician providers in Ohio

There are 499 nephrology physician records in Ohio.

The 8 nephrology physician records with the nearest ZIP codes

  1. Jessica Greco, MDColumbus, OH 432031235496399
  2. Aijaz Gundroo, MDColumbus, OH 432031881660900
  3. Nabil Haddad, M.D.Columbus, OH 432031598772998
  4. Rima Kang, M.D.Columbus, OH 432031619269578
  5. Samir Parikh, MDColumbus, OH 432031578789897
  6. Jason Prosek, M.D.Columbus, OH 432031548451313
  7. Brad Rovin, M.D.Columbus, OH 432031902813215
  8. Johannes Schlondorff, M.D., PHDColumbus, OH 432031366422537

Common questions

What is Isabelle M. Ayoub, M.D's NPI number?

Isabelle M. Ayoub, M.D's National Provider Identifier (NPI) is 1669617221, issued on Dec 11, 2008. An NPI identifies a provider in billing; it is not a license.

Where is Isabelle M. Ayoub, M.D located?

The NPPES record lists a practice address at 543 Taylor Ave, Columbus, OH, 43203. Phone: (614) 293-4837. Providers update this record themselves, so call before visiting.

How can I verify Isabelle M. Ayoub, M.D's license?

NPPES lists Ohio license number 35122963, 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 Isabelle M. Ayoub, M.D prescribe under Medicare Part D?

In 2024, Isabelle M. Ayoub, M.D had 465 Medicare Part D claims for 69 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.

What is Isabelle M. Ayoub, M.D's MIPS final score?

The 2023 MIPS final score is 95.3 of 100. The average among 454,083 clinicians with a measured score was 83.5.

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.