NPPES file of Aug 9, 2026

Michael J. Del Rio, M.D.

Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician · Mason City, IA

Michael J. Del Rio, M.D. is a thoracic surgery (cardiothoracic vascular surgery) physician with a practice address in Mason City, Iowa, and NPI 1073557757, issued on Jun 15, 2006. Check the license (Iowa 39921, as entered in NPPES) on the Iowa Board of Medicine; 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
1073557757
Name
Michael J. Del Rio
Credential
M.D.
Primary taxonomy
Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician 208G00000X
License numbers
39921 IA
G50089 CA
31263 MS
Self-reported in NPPES; status is on the state search
Practice location
250 S Crescent Dr, Mason City, IA 50401
Phone
(641) 494-5300
Enumerated
Jun 15, 2006
Record last updated
Jul 25, 2023
Medicare enrollment
Enrolled (PECOS I20221028001818); accepts Medicare assignment
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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8 nearest thoracic surgery (cardiothoracic vascular surgery) physician records → All 53 in Iowa → Look up another NPI →

Also registered at 250 S Crescent Dr

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

  1. Christopher Adams, M.D.Urology Physician1336301563
  2. Andrea Anderson, PMHNPPsychiatric/Mental Health Nurse Practitioner1760065023
  3. Byron Beasley, MDCardiovascular Disease Physician1053398180
  4. Donald Beitzel, P.A.Physician Assistant1518939982
  5. Gregory Blank, PAPhysician Assistant1831161736
  6. Chad Boyer, PA-CPhysician Assistant1265638829

Verify Michael J. Del Rio in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIowa Board of Medicine
    Search for license 39921    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 Iowa 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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3.4 times the Medicare Part D claims of the average thoracic surgery (cardiothoracic vascular surgery) physician in 2024

347 Medicare Part D claims for 92 beneficiaries, against an average of 101 among the 2,587 providers of this specialty who prescribed in Part D.

  1. Michael Del Rio347
  2. Specialty average101

Most prescribed

  1. Chlorhexidine Gluconate53 claims
  2. Mupirocin53 claims
  3. Potassium Chloride17 claims
  4. Enoxaparin Sodium16 claims
  5. Furosemide16 claims
  6. Ciprofloxacin Hcl15 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: $97.57

4 payments; by number, the most common kind was food and beverage; the largest payer was Medtronic, 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. Michael Del Rio$97.57
  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 2 group practices

  1. Mason City Clinic PCMason City, IA
  2. North Iowa Mercy ClinicsMason City, IA

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

Michael J. Del Rio among 53 thoracic surgery (cardiothoracic vascular surgery) physician records in Iowa

Michael J. Del Rio, M.D. is one of 53 thoracic surgery (cardiothoracic vascular surgery) physician records with a practice address in Iowa. 72% 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 21% of them.

  • NPI issued2006 · 21% of these records are older, 49% newer
  • In a Medicare fileYes · 72% of these records are
  • In the CMS Doctors and Clinicians fileYes · 57% of these records are
  • Graduated1981 · median 2000 among the 30 with a school on file
  • Record last updated2023 · 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 208G00000X and a Iowa 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 Iowa

There are 53 thoracic surgery (cardiothoracic vascular surgery) physician records in Iowa.

All 53 in Iowa → Every provider in Mason City → Thoracic Surgery (Cardiothoracic Vascular Surgery) Physician nationwide →

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

  1. Daniel Waters, D.O.Mason City, IA 504011962490136
  2. Chamnahn Kongtahworn, M.D.Clive, IA 503251982973970
  3. Steven Phillips, M.D.Urbandale, IA 503221871997759
  4. Ali Al Ameri, MDDes Moines, IA 503141558700450
  5. Hashim Hanif, MDDes Moines, IA 503141043652209
  6. Tayyaba Malik, MDDes Moines, IA 503141215389234
  7. Ganga Prabhakar, M.D.Des Moines, IA 503141023109444
  8. Marnix Verhofste, M.D.Des Moines, IA 503141821070657

Common questions

What is Michael J. Del Rio, M.D.'s NPI number?

Michael J. Del Rio, M.D.'s National Provider Identifier (NPI) is 1073557757, issued on Jun 15, 2006. An NPI identifies a provider in billing; it is not a license.

Where is Michael J. Del Rio, M.D. located?

The NPPES record lists a practice address at 250 S Crescent Dr, Mason City, IA, 50401. Phone: (641) 494-5300. Providers update this record themselves, so call before visiting.

How can I verify Michael J. Del Rio, M.D.'s license?

NPPES lists Iowa license number 39921, as entered by the provider. Search the Iowa Board of Medicine at https://dial.iowa.gov/about-dial/boards-and-commissions/medicine. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.

How much does Michael J. Del Rio, M.D. prescribe under Medicare Part D?

In 2024, Michael J. Del Rio, M.D. had 347 Medicare Part D claims for 92 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.

Written with AI tools from the named public files; every figure is computed from those files (how it is made).

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.