NPPES file of Aug 9, 2026

Johannes S. Schlondorff, M.D., PHD

Nephrology Physician · Columbus, OH

Johannes S. Schlondorff, M.D., PHD is a nephrology physician with a practice address in Columbus, Ohio, and NPI 1366422537, issued on Jan 22, 2006. Check the license (Ohio 35145927, 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
1366422537
Name
Johannes S. Schlondorff
Credential
M.D., PHD
Primary taxonomy
Nephrology Physician 207RN0300X
License number
35145927 OH
Self-reported in NPPES; status is on the state search
Practice location
543 Taylor Ave, Columbus, OH 43203
Phone
(614) 293-4837
Enumerated
Jan 22, 2006
Record last updated
Dec 28, 2022
Fax
(614) 293-3125
Medicaid ID
0001067 OH
Medicare enrollment
Enrolled (PECOS I20250703001415); 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 Johannes S. Schlondorff 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 35145927
    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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12% fewer Medicare Part D claims than the average nephrology physician in 2024

1,296 Medicare Part D claims for 234 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 17% of claims.

  1. Johannes Schlondorff1,296
  2. Specialty average1,465

Most prescribed

  1. Losartan Potassium183 claims
  2. Chlorthalidone103 claims
  3. Calcitriol96 claims
  4. Spironolactone88 claims
  5. Lisinopril85 claims
  6. Farxiga84 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.

Bills Medicare through one group practice

  1. University OF Penn - Medical GroupPhiladelphia, PA

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

Johannes S. Schlondorff among 499 nephrology physician records in Ohio

Johannes S. Schlondorff, M.D., PHD 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 2006, is newer than 14% of them.

  • NPI issued2006 · 14% of these records are older, 52% newer
  • In a Medicare fileYes · 84% of these records are
  • In the CMS Doctors and Clinicians fileYes · 75% of these records are
  • Graduated2002 · median 2002 among the 374 with a school on file
  • Record last updated2022 · 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. Isabelle Ayoub, M.DColumbus, OH 432031669617221
  2. Jessica Greco, MDColumbus, OH 432031235496399
  3. Aijaz Gundroo, MDColumbus, OH 432031881660900
  4. Nabil Haddad, M.D.Columbus, OH 432031598772998
  5. Rima Kang, M.D.Columbus, OH 432031619269578
  6. Samir Parikh, MDColumbus, OH 432031578789897
  7. Jason Prosek, M.D.Columbus, OH 432031548451313
  8. Brad Rovin, M.D.Columbus, OH 432031902813215

Common questions

What is Johannes S. Schlondorff, M.D., PHD's NPI number?

Johannes S. Schlondorff, M.D., PHD's National Provider Identifier (NPI) is 1366422537, issued on Jan 22, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Johannes S. Schlondorff, M.D., PHD 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 Johannes S. Schlondorff, M.D., PHD's license?

NPPES lists Ohio license number 35145927, 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 Johannes S. Schlondorff, M.D., PHD prescribe under Medicare Part D?

In 2024, Johannes S. Schlondorff, M.D., PHD had 1,296 Medicare Part D claims for 234 beneficiaries; the average among nephrology physician prescribers was 1,465. 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.