Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum
Ruth Blum, M.D.
Urology Physician in Billings, MT · enumerated 2015.
Data current as of Jul 13, 2026 · sourced from CMS NPPES
National Provider Identifier
1588058168
See something wrong? Report a correction
Registry record
Entity type Individual (Type 1)
Name Ruth Blum
Credential M.D.
Sex Female
Practice address 801 N 29th St, Billings, MT, 59101
Phone (406) 238-2500
Enumeration date Mar 23, 2015
Last updated in NPPES Mar 8, 2022
Taxonomy & licenses
MD · Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure.
About the MD credential
What is an NPI number?
A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes, even if the provider moves or changes specialty.
Frequently asked questions
What is the NPI number for Ruth Blum?
The National Provider Identifier (NPI) for Ruth Blum is 1588058168, a Type 1 (individual) record in the CMS NPPES registry.
Where does Ruth Blum practice?
The practice location on file with NPPES is in Billings, MT. Providers can have multiple locations; NPPES lists the primary practice address.
Other providers at this practice address
Browse all → Linda Dupree Physician Assistant · Billings, MT NPI 1073516167 Luis Alvarez Clinical Cardiac Electrophysiology Physician · Billings, MT NPI 1417951922 Dennis Obrien Neurology Physician · Billings, MT NPI 1811981699 Jodee Macdonald Etchart Medical Physician Assistant · Billings, MT NPI 1568456044 Brooke Yates Physician Assistant · Billings, MT NPI 1215921838 Emily Colson Family Medicine Physician · Billings, MT NPI 1952397929 Richard Leblond Internal Medicine Physician · Billings, MT NPI 1184612715 Lawrence Zyskowski Rheumatology Physician · Billings, MT NPI 1841289410
Source: CMS NPPES (public data). Snapshot 2026-07-13. Provider record last updated 2022-03-08.