Hannah Klaassen, DDS
Dentist · Cedar Rapids, IA
Hannah Klaassen, DDS is a dentist with a practice address in Cedar Rapids, Iowa, and NPI 1003485616, issued on Jun 18, 2021. Check the license (Iowa DDS-09914, as entered in NPPES) with the Iowa board that licenses this profession; the Medicare figures below come from public CMS files.
- Name
- Hannah Klaassen
- Credential
- DDS
- Primary taxonomy
- Dentist 122300000X
- License number
- DDS-09914 IA
Self-reported in NPPES; status is on the state search - Practice location
- 4090 21St Ave SW, Cedar Rapids, IA 52404
- Phone
- (319) 396-5336
- Enumerated
- Jun 18, 2021
- Record last updated
- Jun 18, 2021 (not updated in 5 years: call before relying on the address or phone)
- Entity
- Type 1 · individual
Also registered at 4090 21St Ave SW
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Lauryn Adler, DDSDentist1477485415
- Layton Fritsch, DDSDentist1760007850
Verify Hannah Klaassen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersWhich Iowa board licenses this profession
Search for license DDS-09914Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
74% fewer Medicare Part D claims than the average dentist in 2024
22 Medicare Part D claims for 15 beneficiaries, against an average of 86 among the 51,021 providers of this specialty who prescribed in Part D. Brand-name drugs were 0% of claims.
Most prescribed
- Methylprednisolone11 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: $46.46
1 payment: food and beverage; the largest payer was Dentsply Sirona Inc. The 31,974 providers of this specialty with any payment received $540.36 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
47 dentist records list a practice address in Cedar Rapids
They are 47 of the 2,949 NPPES records with a practice address in Cedar Rapids, and 726 dentist records in Iowa.
All 47 in Cedar Rapids → All 726 in Iowa → Every provider in Cedar Rapids →
Other dentist records in Iowa
- Jeffrey Aagaard, DDSWest Des Moines, IA1417021205
- Rebecca Acton, DMDBlue Grass, IA1881180792
- Quinn Adajar, DDSIowa City, IA1801720214
- Laura AdamAlbia, IA1982824173
- Eric Adams, DDSCedar Falls, IA1346301272
- Lauryn Adler, DDSCedar Rapids, IA1477485415
- Riti Agarwal, D.M.D.Des Moines, IA1063832624
- Emma Ahrenholtz, DDSHarlan, IA1598656902
- Heba Al-Aani, DDSCedar Rapids, IA1306674106
- Rawa AlammariIowa City, IA1952650012
Common questions
What is Hannah Klaassen, DDS's NPI number?
Hannah Klaassen, DDS's National Provider Identifier (NPI) is 1003485616, issued on Jun 18, 2021. An NPI identifies a provider in billing; it is not a license.
Where is Hannah Klaassen, DDS located?
The NPPES record lists a practice address at 4090 21St Ave SW, Cedar Rapids, IA, 52404. Phone: (319) 396-5336. Providers update this record themselves, so call before visiting.
How can I verify Hannah Klaassen, DDS's license?
NPPES lists Iowa license number DDS-09914, as entered by the provider. Search the Iowa board that licenses this profession; the NPPES record confirms identity only.
How much does Hannah Klaassen, DDS prescribe under Medicare Part D?
In 2024, Hannah Klaassen, DDS had 22 Medicare Part D claims for 15 beneficiaries; the average among dentist prescribers was 86. 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.