ROBERT DAVID PFEFFER M.D.
NPI 1679563639
Radiology - Radiation Oncology in Sidney, MT
About Robert David Pfeffer M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ROBERT DAVID PFEFFER M.D. (NPI 1679563639) is an individual radiation oncology provider in Sidney, Montana, licensed in Washington (MD00026712) and active in the NPI registry since October 2005. He is enrolled in Medicare PECOS, is affiliated with Memorial Hospital, and is a graduate of University Of Washington School Of Medicine (1986).
NPPES Registry Identity
Specialties & Licenses
A radiologist who deals with the therapeutic applications of radiant energy and its modifiers and the study and management of disease, especially malignant tumors.
Other Identifiers 8
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Robert David Pfeffer M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.
Areas of Expertise CMS Part B claims 5
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.
Hospital Affiliations CMS Care Compare 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Memorial Hospital
Acute Care Hospitals · Logansport, INSt Peters Health
Acute Care Hospitals · Helena, MTPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 59270 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.
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.
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 Pfeffer's NPI number?
The NPI number for Robert Pfeffer is 1679563639. It was assigned to this individual provider in the NPPES registry on October 21, 2005.
Where is Robert Pfeffer located?
Robert Pfeffer practices at 216 14th Ave SW, Sidney, MT 59270. The listed phone number is (406) 488-2100.
What is Robert Pfeffer's specialty?
The primary specialty registered for this NPI is Radiology, specializing in Radiation Oncology, with taxonomy code 2085R0001X.
Is Robert Pfeffer enrolled in Medicare?
Yes. Robert Pfeffer is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.
What insurance does Robert Pfeffer accept?
Health plans from PacificSource Health Plans, Premera Blue Cross Blue Shield of Alaska and Providence Health Plan list Robert Pfeffer 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.
Is Robert Pfeffer affiliated with any hospitals?
According to CMS data, Robert Pfeffer is affiliated with Memorial Hospital and St Peters Health.
When was this NPI record last updated?
The NPPES record for Robert Pfeffer was last updated on April 9, 2026. NPI Profile syncs with the weekly NPPES data releases published by CMS.