DR. LOUIS CHARLES KEILER III M.D.
NPI 1033322219
Radiology - Radiation Oncology in Cedar Rapids, IA

Q: What is Louis Keiler's NPI number?

The NPI number for Louis Keiler is 1033322219. It was assigned to this individual provider in the NPPES registry on May 7, 2007.

Q: What is Louis Keiler's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.

Q: When was this NPI record last updated?

The NPPES record for Louis Keiler was last updated on June 7, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.

Active since May 07, 2007PECOS Enrolled

202 10TH ST SE, SUITE 195, CEDAR RAPIDS, IA 52403(319) 558-4876 Get Directions Write a Review

NPPES record last updated: June 7, 2017. Verified against the NPPES registry weekly; last sync: October 18, 2026.

Record update history: Jun 7, 2017, Apr 25, 2017, Apr 21, 2017 (3 updates tracked since 2017).

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About Dr. Louis Charles Keiler Iii M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. LOUIS CHARLES KEILER III M.D. (NPI 1033322219) is an individual radiation oncology provider in Cedar Rapids, Iowa, licensed in Ohio (57.009376) and active in the NPI registry since May 2007. He is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1033322219

Entity TypeIndividualMale

Primary Taxonomy2085R0001X

Provider Legal NameDR. LOUIS CHARLES KEILER IIICredential: M.D.

Location Address202 10TH ST SE, SUITE 195Cedar Rapids, IA 52403-2414

Mailing Address333 E 10th St, Suite 241Dubuque, IA 52001-7666 · (563) 556-3175

Phone(319) 558-4876

Sole ProprietorNo

Enumeration DateMay 7, 2007

Last NPPES UpdateJune 7, 20173 updates tracked since enumeration

✔ NPI 1033322219 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyRadiology · Radiation OncologyAllopathic & Osteopathic Physicians

Taxonomy Code2085R0001X

Licenses✔ Licensed in OH · 57.009376✔ Licensed in IA · MD-44303✔ Licensed in IL · 036119808

Definition

A radiologist who deals with the therapeutic applications of radiant energy and its modifiers and the study and management of disease, especially malignant tumors.

202 10TH ST SE, Cedar Rapids, IA 52403

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Accepted Insurance

The full list of accepted plans is on the Insurance tab. Issuers include Quartz.Insurance ›

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Louis Charles Keiler Iii M.d. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

Eligible to Order & Refer✔ Part B Labs & Imaging✔ Durable Medical Equipment✔ Home Health Agency✔ Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Medicare Billing Reassignments

Medicare enrollment records show Louis Keiler reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.

Ottawa Regional Hospital & Healthcare Center

135 mi

Family Medicine

102 11TH ST
Marseilles, IL 61341

Reassigned Medicare billing, Illinois enrollment
130 clinicians in this Medicare group

NPI 1558088203 (815) 795-5400

Ohiohealth Corporation

470 mi

Cardiovascular Disease

3705 OLENTANGY RIVER RD, SUITE 100
Columbus, OH 43214

Reassigned Medicare billing, Ohio enrollment
3,314 clinicians in this Medicare group

NPI 1194979526 (614) 262-6772

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 52403 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient

$161.40 typical visit price

range $52.96 – $161.40

Typical copayment $40.35 (range $13.24 – $40.35)

Most-billed visit code 99205

Established Patient

$66.36 typical visit price

range $16.91 – $131.98

Typical copayment $16.59 (range $4.22 – $32.99)

Most-billed visit code 99213

Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 20

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

DR. MELANIE LUCILLE GIESLER-SPELLMAN D.O

Otolaryngology (Otolaryngology/Facial Plastic Surgery)

202 10TH ST SE
CEDAR RAPIDS, IA 52403

Linn County (319) 399-2022

BOOTHAPURI VENKATESH MD

Internal Medicine (Cardiovascular Disease)

202 10TH ST SE, SUITE 225
CEDAR RAPIDS, IA 52403

Linn County (319) 364-7101

NICOLE M PRUCHNO ARNP

Nurse Practitioner (Family)

202 10TH ST SE
CEDAR RAPIDS, IA 52403

Linn County (319) 297-2900

HARINDER SINGH MD

Internal Medicine (Rheumatology)

202 10TH ST SE
CEDAR RAPIDS, IA 52403

Linn County (319) 398-1546

HISHAM WAGDY MD

Internal Medicine (Interventional Cardiology)

202 10TH ST SE, SUITE 225
CEDAR RAPIDS, IA 52403

Linn County (319) 364-7101

CARDIOLOGISTS LC

Internal Medicine (Cardiovascular Disease)

202 10TH ST SE, SUITE 225
CEDAR RAPIDS, IA 52403

Linn County (319) 364-7101

BRANDON FORREST BOLDT MD

Internal Medicine (Sports Medicine)

202 10TH ST SE
CEDAR RAPIDS, IA 52403

Linn County (319) 398-1545

FRANKIE L DUNBAR ARNP

Nurse Practitioner (Family)

202 10TH ST SE
CEDAR RAPIDS, IA 52403

Linn County (319) 398-1721

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Louis Keiler's NPI number?

The NPI number for Louis Keiler is 1033322219. It was assigned to this individual provider in the NPPES registry on May 7, 2007.

Where is Louis Keiler located?

Louis Keiler practices at 202 10th St SE Suite 195, Cedar Rapids, IA 52403. The listed phone number is (319) 558-4876.

What is Louis Keiler's specialty?

The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.

Is Louis Keiler enrolled in Medicare?

Yes. Louis Keiler is registered in the Medicare PECOS enrollment system.

Which organizations bill Medicare for Louis Keiler's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Louis Keiler reassigns Medicare benefits to 2 organizations: Ottawa Regional Hospital & Healthcare Center (Marseilles, IL) and Ohiohealth Corporation (Columbus, OH). Each reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Louis Keiler's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

What insurance does Louis Keiler accept?

Health plans from Quartz list Louis Keiler as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

When was this NPI record last updated?

The NPPES record for Louis Keiler was last updated on June 7, 2017. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.