Hannah Klaassen, DDS
Hannah Klaassen, DDS is a provider specialising in Dentist in Cedar Rapids, IA, registered under NPI 1003485616.
Getting there
Here is what surrounds this office in Cedar Rapids, based on OpenStreetMap data collected Sep 30, 2026. Parking is available about 500 ft away. A pharmacy sits 0.49 mi from the entrance (CVS Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.39 mi away.
Getting here and what is nearby
Parking 68 ft ~1 min
Parking 143 ft ~1 min
Restaurant Egg Roll House 366 ft ~2 min
2000 Wiley Boulevard Southwest, Cedar Rapids 52404
Parking 500 ft ~2 min
Hotel Rodeway Inn 0.27 mi ~6 min
Restaurant Little Caesars 0.33 mi ~7 min
Convenience Kwik Star 0.36 mi ~8 min
Gas station Kwik Star 0.36 mi ~8 min
Coffee Starbucks 0.39 mi ~8 min
3500 Williams Boulevard Southwest, Cedar Rapids 52404
Mo-Su 05:30-20:00
Grocery ALDI 0.40 mi ~9 min
1860 Edgewood Road Southwest, Cedar Rapids 52404
Mo-Su 09:00-20:00
Hotel Tru 0.46 mi ~10 min
3900 Westdale Parkway Southwest, Cedar Rapids 52404
Hotel Home2 Suites 0.48 mi ~10 min
Pharmacy CVS Pharmacy 0.49 mi ~10 min
Restaurant Dunkin' 0.49 mi ~10 min
1640 Edgewood Road Southwest, Cedar Rapids 52404
04:30-19:00
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| DDS-09914 | IA | Dentist primary |
This provider holds licence DDS-09914 issued in IA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Dentist covers
A dentist is a person qualified by a doctorate in dental surgery (D.D.S.) or dental medicine (D.M.D.), licensed by the state to practice dentistry, and practicing within the scope of that license. There is no difference between the two degrees: dentists who have a DMD or DDS have the same education. Universities have the prerogative to determine what degree is awarded. Both degrees use the same curriculum requirements set by the American Dental Association's Commission on Dental Accreditation. Generally, three or more years of undergraduate education plus four years of dental school is required to graduate and become a general dentist. State licensing boards accept either degree as equivalent, and both degrees allow licensed individuals to practice the same scope of general dentistry. Additional post-graduate training is required to become a dental specialist. NUCC Health Care Provider Taxonomy, code 122300000X
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1003485616 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jun 18, 2021 |
| Last updated | Jun 18, 2021 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | DDS |
| Practice address |
4090 21ST AVE SW Cedar Rapids, IA 52404 (319) 396-5336 |
| Mailing address |
306 1ST AVE APT 403 Coralville, IA 52241 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 0 | 0 | 3 | 4 | 8 | 5 | 6 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 8 | 8 | 1 | 6 | 2 |
Sum = 54 · next multiple of 10 = 60 · check digit = 6 · actual last digit = 6
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.