RUTH BLUM M.D.
NPI 1588058168
Urology in Billings, MT
About Ruth Blum M.d. NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RUTH BLUM M.D. (NPI 1588058168) is an individual urology provider in Billings, Montana, licensed in New York (302734) and active in the NPI registry since March 2015. She is enrolled in Medicare PECOS, is affiliated with Billings Clinic, and maintains a secondary practice location in New York.
NPPES Registry Identity
Specialties & Licenses
Secondary Practice Location 1
Accepted Insurance
Medicare Participation & PECOS CMS
Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.
Medicare Enrollment Status
Enrolled in Medicare and accepts Medicare assignment
Ruth Blum 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.
Medicare Billing Reassignments
4Medicare enrollment records show Ruth Blum reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Billings, MT 59101
- Reassigned Medicare billing, Montana enrollment
- 1,264 clinicians in this Medicare group
Glendive, MT 59330
- Reassigned Medicare billing, Montana enrollment
- Also billed through NPI 1376552893 (Montana)
- 38 clinicians in this Medicare group
Glendive, MT 59330
- Reassigned Medicare billing, Montana enrollment
- 53 clinicians in this Medicare group
New York, NY 10032
- Reassigned Medicare billing, New York enrollment
- 3,922 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 19
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 5
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Billings Clinic
Acute Care Hospitals · Billings, MTFrances Mahon Deaconess Hospital
Critical Access Hospitals · Glasgow, MTGlendive Medical Center
Critical Access Hospitals · Glendive, MTWashakie Medical Center
Critical Access Hospitals · Worland, WYPowell Valley Hospital
Critical Access Hospitals · Powell, WYPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 59101 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.
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.
BILLINGS, MT 59101
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 Ruth Blum's NPI number?
The NPI number for Ruth Blum is 1588058168. It was assigned to this individual provider in the NPPES registry on March 23, 2015.
Where is Ruth Blum located?
Ruth Blum practices at 801 N 29th St, Billings, MT 59101. The listed phone number is (406) 238-2500.
What is Ruth Blum's specialty?
The primary specialty registered for this NPI is Urology with taxonomy code 208800000X.
Is Ruth Blum enrolled in Medicare?
Yes. Ruth Blum 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.
Which organizations bill Medicare for Ruth Blum's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ruth Blum reassigns Medicare benefits to 4 organizations: Billings Clinic (Billings, MT), Glendive Medical Center, Inc (Glendive, MT), Gabert Medical Services, Inc (Glendive, MT) and Trustees Of Columbia University In The City Of New York (New York, NY). 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 Ruth Blum's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ruth Blum accept?
Health plans from Blue Cross Blue Shield of Wyoming, Blue Cross and Blue Shield of Montana, Mountain Health CO-OP, PacificSource Health Plans and Providence Health Plan list Ruth Blum 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 Ruth Blum affiliated with any hospitals?
According to CMS data, Ruth Blum is affiliated with Billings Clinic, Frances Mahon Deaconess Hospital, Glendive Medical Center, Washakie Medical Center and Powell Valley Hospital.
When was this NPI record last updated?
The NPPES record for Ruth Blum was last updated on March 8, 2022. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 4 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.
# Ruth Blum, M.D. · NPI 1588058168
Urology physician in Billings, Montana. Individual provider, active in the CMS NPPES registry since March 23, 2015.
## Identity
- **NPI:** 1588058168 (Entity type: Individual)
- **Enumerated:** March 23, 2015
- **Primary specialty:** Urology · taxonomy 208800000X
- **State license:** 302734 (New York)
- **Sole proprietor:** No
## Practice location
- **Address:** 801 N 29TH ST, Billings, MT 59101-0905
- **Phone:** (406) 238-2500
## Medicare
- **Medicare:** Enrolled (PECOS); accepts Medicare assignment
- **Ordering & referring:** eligible for Part B labs & imaging, durable medical equipment, home health, power mobility devices
- **Bills Medicare through:** 4 organizations under Medicare reassignment (form CMS-855R): Billings Clinic (NPI 1376598714, Billings, MT); Glendive Medical Center, Inc (NPI 1124038716, Glendive, MT); Gabert Medical Services, Inc (NPI 1336158930, Glendive, MT); Trustees Of Columbia University In The City Of New York (NPI 1508266347, New York, NY) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Pennsylvania State University College Of Medicine, class of 2015
## Record status
- **NPPES last updated:** March 8, 2022
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Source: [NPI Profile](https://npiprofile.com/npi/1588058168) · Data from the CMS NPPES public registry.