NPPES file of Aug 9, 2026

Luke John Carlson, MD

Internal Medicine Physician · Mason City, IA

Luke John Carlson, MD is an internal medicine physician with a practice address in Mason City, Iowa, and NPI 1457092165, issued on Apr 5, 2022. Check the license 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
1457092165
Name
Luke John Carlson
Credential
MD
Primary taxonomy
Internal Medicine Physician 207R00000X
License number
2025-01405 NC
Self-reported in NPPES; status is on the state search
Practice location
1010 4TH St SW Ste 305, Mason City, IA 50401
Phone
(641) 428-5700
Enumerated
Apr 5, 2022
Record last updated
Jul 15, 2025
Medicare enrollment
Enrolled (PECOS I20250719000289); 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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Also registered at 1010 4TH St SW Ste 305

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

  1. Kieran Allowitz, DOStudent in an Organized Health Care Education/Training Program1871438879
  2. Spencer Boster, DOStudent in an Organized Health Care Education/Training Program1639973332
  3. Celine Durgin, MDStudent in an Organized Health Care Education/Training Program1396488953
  4. Linda Floden, MDFamily Medicine Physician1467563452
  5. Matthew Hardee, D.O.Internal Medicine Physician1548408867
  6. Gaurav Karn, MDStudent in an Organized Health Care Education/Training Program1154267086

Verify Luke John Carlson in five checks

  1. 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
  2. 2LicenseActive license and public ordersIowa Board of MedicineCheck 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

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95% fewer Medicare Part D claims than the average internal medicine physician in 2024

166 Medicare Part D claims for 54 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.

  1. Luke Carlson166
  2. Specialty average3,176

Most prescribed

  1. Atorvastatin Calcium11 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: $33.38

1 payment: food and beverage; the largest payer was Abiomed. The 50,334 providers of this specialty with any payment received $1,303.06 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.

  1. Luke Carlson$33.38
  2. Specialty average$1,303.06

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. Apogee Medical Group Iowa PCOttumwa, IA
  2. Cogent Healthcare OF Iowa PCCedar Rapids, IA

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

Luke John Carlson among 871 internal medicine physician records in Iowa

Luke John Carlson, MD is one of 871 internal medicine physician records with a practice address in Iowa. 70% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2022, is newer than 73% of them.

  • NPI issued2022 · 73% of these records are older, 22% newer
  • In a Medicare fileYes · 70% of these records are
  • In the CMS Doctors and Clinicians fileYes · 44% of these records are
  • Graduated2020 · median 2008 among the 386 with a school on file
  • Record last updated2025 · 46% of these records were not updated in five years or more

Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a Iowa practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).

36 internal medicine physician records list a practice address in Mason City

They are 36 of the 866 NPPES records with a practice address in Mason City, and 871 internal medicine physician records in Iowa.

The 8 internal medicine physician records with the nearest ZIP codes

  1. Phillip Alscher, MDMason City, IA 504011700993888
  2. Vaughan Cipperly, MDMason City, IA 504011942235429
  3. Patrick Dunlay, DOMason City, IA 504011811004294
  4. Melissa Frame, MDMason City, IA 504011881796712
  5. Bruce Harlan, MDMason City, IA 504011336256593
  6. Mark Johnson, MDMason City, IA 504011013923127
  7. Janice Kirsch, MDMason City, IA 504011992809636
  8. Ali Mardan, PHD, MD, RPVI, FACPMason City, IA 504011619905353

Common questions

What is Luke John Carlson, MD's NPI number?

Luke John Carlson, MD's National Provider Identifier (NPI) is 1457092165, issued on Apr 5, 2022. An NPI identifies a provider in billing; it is not a license.

Where is Luke John Carlson, MD located?

The NPPES record lists a practice address at 1010 4TH St SW Ste 305, Mason City, IA, 50401. Phone: (641) 428-5700. Providers update this record themselves, so call before visiting.

How can I verify Luke John Carlson, MD's license?

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 Luke John Carlson, MD prescribe under Medicare Part D?

In 2024, Luke John Carlson, MD had 166 Medicare Part D claims for 54 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.