RUTH ESTHER SMITH MD
NPI 1275887366
Family Medicine in Mankato, MN
About Ruth Esther Smith Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
RUTH ESTHER SMITH MD (NPI 1275887366) is an individual family medicine provider in Mankato, Minnesota, licensed in Minnesota (66625) and active in the NPI registry since October 2012. She is enrolled in Medicare PECOS, is affiliated with St Croix Regional Medical Center, and maintains 2 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Secondary Practice Locations 2
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 Esther Smith Md 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
2Medicare enrollment records show Ruth Smith reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Mankato, MN 56001
- Reassigned Medicare billing, Minnesota enrollment
- 1,572 clinicians in this Medicare group
Saint Croix Falls, WI 54024
- Reassigned Medicare billing, Minnesota and Wisconsin enrollments
- 241 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 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
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
St Croix Regional Medical Center
Critical Access Hospitals · Saint Croix Falls, WIPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 56001 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.
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 Smith's NPI number?
The NPI number for Ruth Smith is 1275887366. It was assigned to this individual provider in the NPPES registry on October 29, 2012. The provider is also known as Ruth Esther Olson MD.
Where is Ruth Smith located?
Ruth Smith practices at 1025 Marsh St, Mankato, MN 56001. The listed phone number is (507) 625-4031.
What is Ruth Smith's specialty?
The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.
Is Ruth Smith enrolled in Medicare?
Yes. Ruth Smith 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 Smith's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Ruth Smith reassigns Medicare benefits to 2 organizations: Mayo Clinic Health System-Southwest Minnesota Region (Mankato, MN) and St. Croix Regional Medical Center (Saint Croix Falls, WI). 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 Smith's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Ruth Smith accept?
Health plans from Anthem Blue Cross and Blue Shield, HealthPartners and Security Health Plan list Ruth Smith 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 Smith affiliated with any hospitals?
According to CMS data, Ruth Smith is affiliated with St Croix Regional Medical Center.
When was this NPI record last updated?
The NPPES record for Ruth Smith was last updated on September 10, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 51 days 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 Esther Smith, MD · NPI 1275887366
Family Medicine physician in Mankato, Minnesota. Individual provider, active in the CMS NPPES registry since October 29, 2012.
## Identity
- **NPI:** 1275887366 (Entity type: Individual)
- **Enumerated:** October 29, 2012
- **Primary specialty:** Family Medicine · taxonomy 207Q00000X
- **State license:** 66625 (Minnesota)
- **Sole proprietor:** No
## Practice location
- **Address:** 1025 MARSH ST, Mankato, MN 56001-4752
- **Phone:** (507) 625-4031
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Mayo Clinic Health System-Southwest Minnesota Region (NPI 1578545422, Mankato, MN); St. Croix Regional Medical Center (NPI 1043240922, Saint Croix Falls, WI) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** University Of Minnesota Medical School, class of 2012
## Record status
- **NPPES last updated:** September 10, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1275887366) · Data from the CMS NPPES public registry.