David William Popp, MD
Internal Medicine Physician · Mason City, IA
David William Popp, MD is an internal medicine physician with a practice address in Mason City, Iowa, and NPI 1710068432, issued on Oct 18, 2006. Check the license on the Iowa Board of Medicine; the Medicare figures below come from public CMS files.
- Name
- David William Popp
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License numbers
- 41047 MN
37839020 WI
Self-reported in NPPES; status is on the state search - Practice location
- 1000 4TH St SW, Mason City, IA 50401
- Phone
- (641) 428-6999
- Enumerated
- Oct 18, 2006
- Record last updated
- Mar 7, 2023
- Medicaid ID
- 32450600 WI
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 871 in Iowa → Look up another NPI →
Also registered at 1000 4TH St SW
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify David William Popp in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersIowa Board of MedicineCheck the board
- 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
99% fewer Medicare Part D claims than the average internal medicine physician in 2024
38 Medicare Part D claims, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Bupropion Xl19 claims
- Potassium Citrate Er13 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.
David William Popp among 871 internal medicine physician records in Iowa
David William Popp, 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 2006, is newer than 11% of them.
- NPI issued2006 · 11% of these records are older, 62% newer
- In a Medicare fileYes · 70% of these records are
- In the CMS Doctors and Clinicians fileNo · 44% of these records are
- Record last updated2023 · 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 David William Popp, MD's NPI number?
David William Popp, MD's National Provider Identifier (NPI) is 1710068432, issued on Oct 18, 2006. An NPI identifies a provider in billing; it is not a license.
Where is David William Popp, MD located?
The NPPES record lists a practice address at 1000 4TH St SW, Mason City, IA, 50401. Phone: (641) 428-6999. Providers update this record themselves, so call before visiting.
How can I verify David William Popp, 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 David William Popp, MD prescribe under Medicare Part D?
In 2024, David William Popp, MD had 38 Medicare Part D claims; 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.