Louis Keiler, M.D.
NPI 1033322219 · Radiation Oncology Physician · Cedar Rapids, IA
Enrolled with Medicare as Practitioner - Radiation Oncology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Louis Keiler, M.D. is a Radiation Oncology Physician provider in Cedar Rapids, IA (NPI 1033322219).
Provider details
- NPI number
- 1033322219
- Entity type
- Individual
- Primary specialty
- Radiation Oncology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 036119808 (IL)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
19 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
Practice location
Mailing address
Registry dates
- Enumerated
- 2007-05-07
- Last updated
- 2017-06-07
Frequently asked questions
- What is Louis Keiler's NPI number?
- Louis Keiler's National Provider Identifier (NPI) is 1033322219, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Louis Keiler's specialty?
- Louis Keiler is listed in the NPPES registry with a primary specialty of Radiation Oncology Physician (Allopathic & Osteopathic Physicians).
- Where is Louis Keiler located?
- Louis Keiler's practice location on file with NPPES is 202 10th St Se, Cedar Rapids, IA 52403-2414.
- What is Louis Keiler's phone number?
- The practice phone number listed in the NPPES registry for Louis Keiler is (319) 558-4876.
- Does Louis Keiler accept Medicare?
- Louis Keiler is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Louis Keiler's NPI active?
- Yes — Louis Keiler's NPI (1033322219) is active in the NPPES registry as of the last update on 2017-06-07.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.