Matthew Robert Hardee, D.O.
Internal Medicine Physician · Mason City, IA
Matthew Robert Hardee, D.O. is an internal medicine physician with a practice address in Mason City, Iowa, and NPI 1548408867, issued on Jan 23, 2009. Check the license (Iowa DO-05360, as entered in NPPES) on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- Matthew Robert Hardee
- Credential
- D.O.
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- DO-05360 IA
2007018754 MO
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
- Jan 23, 2009
- Record last updated
- Jul 8, 2025
- Fax
- (641) 428-2515
- Medicare enrollment
- Enrolled (PECOS I20191002003839); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 871 in Iowa → Look up another NPI →
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.
- Kieran Allowitz, DOStudent in an Organized Health Care Education/Training Program1871438879
- Spencer Boster, DOStudent in an Organized Health Care Education/Training Program1639973332
- Luke Carlson, MDInternal Medicine Physician1457092165
- Celine Durgin, MDStudent in an Organized Health Care Education/Training Program1396488953
- Linda Floden, MDFamily Medicine Physician1467563452
- Gaurav Karn, MDStudent in an Organized Health Care Education/Training Program1154267086
Verify Matthew Robert Hardee in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIowa Board of Medicine
Search for license DO-05360Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
16% fewer Medicare Part D claims than the average internal medicine physician in 2024
2,658 Medicare Part D claims for 329 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 9% of claims. 104 claims were for opioids.
Most prescribed
- Atorvastatin Calcium165 claims
- Gabapentin104 claims
- Levothyroxine Sodium91 claims
- Lisinopril91 claims
- Omeprazole80 claims
- Losartan Potassium76 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
- 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).
Matthew Robert Hardee among 871 internal medicine physician records in Iowa
Matthew Robert Hardee, D.O. 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 2009, is newer than 44% of them.
- NPI issued2009 · 44% of these records are older, 53% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileYes · 44% of these records are
- Graduated2007 · 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.
All 871 in Iowa → Every provider in Mason City → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Phillip Alscher, MDMason City, IA 504011700993888
- Vaughan Cipperly, MDMason City, IA 504011942235429
- Patrick Dunlay, DOMason City, IA 504011811004294
- Melissa Frame, MDMason City, IA 504011881796712
- Bruce Harlan, MDMason City, IA 504011336256593
- Mark Johnson, MDMason City, IA 504011013923127
- Janice Kirsch, MDMason City, IA 504011992809636
- Ali Mardan, PHD, MD, RPVI, FACPMason City, IA 504011619905353
Common questions
What is Matthew Robert Hardee, D.O.'s NPI number?
Matthew Robert Hardee, D.O.'s National Provider Identifier (NPI) is 1548408867, issued on Jan 23, 2009. An NPI identifies a provider in billing; it is not a license.
Where is Matthew Robert Hardee, D.O. 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 Matthew Robert Hardee, D.O.'s license?
NPPES lists Iowa license number DO-05360, 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 Matthew Robert Hardee, D.O. prescribe under Medicare Part D?
In 2024, Matthew Robert Hardee, D.O. had 2,658 Medicare Part D claims for 329 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.