NPPES file of Aug 9, 2026

Christopher Riordan, MD

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Toledo, OH

Christopher Riordan, MD is a thoracic surgery (cardiothoracic vascular surgery) physician with a practice address in Toledo, Ohio, and NPI 1972509560, issued on Jun 28, 2005. Check the license (Ohio 35.072563, 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
1972509560
Name
Christopher Riordan
Credential
MD
Primary taxonomy
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician 208G00000X
License number
35.072563 OH
Self-reported in NPPES; status is on the state search
Practice location
2109 Hughes Dr, Toledo, OH 43606
Phone
(419) 291-2077
Enumerated
Jun 28, 2005
Record last updated
Nov 3, 2023
Fax
(419) 291-2122
Medicaid ID
2012762 OH
Medicare enrollment
Enrolled (PECOS I20091110000316); accepts Medicare assignment
Medical or professional school
University Of Connecticut School Of Medicine, 1989
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 2109 Hughes Dr

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

  1. Sophia Afridi, MDVascular Surgery Physician1679861975
  2. Fatima AhmedStudent in an Organized Health Care Education/Training Program1497541676
  3. Osamah Al-Gayyali, DDSStudent in an Organized Health Care Education/Training Program1720975725
  4. Joseph Alecusan, MDPediatrics Physician1609436377
  5. Nina Alsabbagh, MDNephrology Physician1952376816
  6. Latina Amick, MSN, CNP, RN-BCNurse Practitioner1285821017

Verify Christopher Riordan 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 35.072563
    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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9% more Medicare Part D claims than the average thoracic surgery (cardiothoracic vascular surgery) physician in 2024

110 Medicare Part D claims for 56 beneficiaries, against an average of 101 among the 2,587 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.

  1. Christopher Riordan110
  2. Specialty average101

Most prescribed

  1. Mupirocin52 claims
  2. Metoprolol Tartrate36 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: $99.96

3 payments; by number, the most common kind was food and beverage; the largest payer was Atricure, Inc. The 4,047 providers of this specialty with any payment received $7,828.84 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Christopher Riordan$99.96
  2. Specialty average$7,828.84

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. Promedica Central PhysiciansToledo, OH

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

Christopher Riordan among 310 thoracic surgery (cardiothoracic vascular surgery) physician records in Ohio

Christopher Riordan, MD is one of 310 thoracic surgery (cardiothoracic vascular surgery) physician records with a practice address in Ohio. 71% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2005, is newer than 0% of them.

  • NPI issued2005 · 0% of these records are older, 87% newer
  • In a Medicare fileYes · 71% of these records are
  • In the CMS Doctors and Clinicians fileYes · 61% of these records are
  • Graduated1989 · median 1998 among the 188 with a school on file
  • Record last updated2023 · 51% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 208G00000X and a Ohio practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician providers in Ohio

There are 310 thoracic surgery (cardiothoracic vascular surgery) physician records in Ohio.

The 8 thoracic surgery (cardiothoracic vascular surgery) physician records with the nearest ZIP codes

  1. Donald Crescenzo, MDToledo, OH 436061538162300
  2. Alexander Ghannam, MDToledo, OH 436061043715501
  3. Michael Moront, MDToledo, OH 436061821091687
  4. William Rachwal, MDToledo, OH 436061851394621
  5. Karl Borsody, M.D.Toledo, OH 436081679559702
  6. Daniel Dibardino, M.D.Toledo, OH 436081194904334
  7. Stanley Kokocki, M.D.Toledo, OH 436081306953633
  8. Christopher Phillips, M.D.Toledo, OH 436081205940483

Common questions

What is Christopher Riordan, MD's NPI number?

Christopher Riordan, MD's National Provider Identifier (NPI) is 1972509560, issued on Jun 28, 2005. An NPI identifies a provider in billing; it is not a license.

Where is Christopher Riordan, MD located?

The NPPES record lists a practice address at 2109 Hughes Dr, Toledo, OH, 43606. Phone: (419) 291-2077. Providers update this record themselves, so call before visiting.

How can I verify Christopher Riordan, MD's license?

NPPES lists Ohio license number 35.072563, 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 Christopher Riordan, MD prescribe under Medicare Part D?

In 2024, Christopher Riordan, MD had 110 Medicare Part D claims for 56 beneficiaries; the average among thoracic surgery (cardiothoracic vascular surgery) physician prescribers was 101. 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.