DR. ROBERT ANSLEY ROOF III D.O.
NPI 1164526349
Emergency Medicine in Waterloo, IA
About Dr. Robert Ansley Roof Iii D.o. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. ROBERT ANSLEY ROOF III D.O. (NPI 1164526349) is an individual emergency medicine provider in Waterloo, Iowa, licensed in Iowa (02246) and active in the NPI registry since September 2006. He is enrolled in Medicare PECOS.
NPPES Registry Identity
Specialties & Licenses
Other Identifiers 3
Accepted 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. Robert Ansley Roof Iii D.o. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
5Medicare enrollment records show Robert Roof reassigns Medicare billing to 5 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Waterloo, IA 50702
- Reassigned Medicare billing, Iowa enrollment
- 70 clinicians in this Medicare group
Waterloo, IA 50702
- Reassigned Medicare billing, Iowa enrollment
- 48 clinicians in this Medicare group
Waverly, IA 50677
- Reassigned Medicare billing, Iowa enrollment
- 81 clinicians in this Medicare group
West Union, IA 52175
- Reassigned Medicare billing, Iowa enrollment
- 155 clinicians in this Medicare group
Marshalltown, IA 50158
- Reassigned Medicare billing, Iowa enrollment
- 214 clinicians in this Medicare group
Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.
Areas of Expertise CMS Part B claims
Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.
Physician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 50702 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
Referred Medical Equipment & Supplies CMS DME claims
Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.
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 Robert Roof's NPI number?
The NPI number for Robert Roof is 1164526349. It was assigned to this individual provider in the NPPES registry on September 11, 2006.
Where is Robert Roof located?
Robert Roof practices at 3421 West 9th St, Waterloo, IA 50702. The listed phone number is (800) 458-5003.
What is Robert Roof's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Robert Roof enrolled in Medicare?
Yes. Robert Roof is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Robert Roof's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Robert Roof reassigns Medicare benefits to 5 organizations: Iowa Emergency Physicians LLP (Waterloo, IA), Waterloo Emergency Physicians, LLC (Waterloo, IA), Waverly Health Center (Waverly, IA), Palmer Lutheran Health Center, Inc. (West Union, IA) and Unitypoint Health - Marshalltown (Marshalltown, IA). 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 Robert Roof's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Robert Roof accept?
Health plans from Wellmark Health Plan of Iowa, Inc. list Robert Roof 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 Robert Roof was last updated on August 19, 2009. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 17 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.