DR. KARI LINNEA BATES DO
NPI 1679000954
Obstetrics & Gynecology in Billings, MT
About Dr. Kari Linnea Bates Do NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
DR. KARI LINNEA BATES DO (NPI 1679000954) is an individual obstetrics & gynecology provider in Billings, Montana, licensed in Montana (MED-PHYS-LIC-98130) and active in the NPI registry since May 2017. She is enrolled in Medicare PECOS, is affiliated with St Vincent Healthcare, and is a graduate of Other (2017).
NPPES Registry Identity
Specialties & Licenses 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 (PECOS)
Dr. Kari Linnea Bates Do is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).
Medicare Billing Reassignments
2Medicare enrollment records show Kari Bates reassigns Medicare billing to 2 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Billings, MT 59102
- Reassigned Medicare billing, Montana enrollment
- Medicare enrollment name: Billings Ob-Gyn Associates PC
- 12 clinicians in this Medicare group
Billings, MT 59102
- Reassigned Medicare billing, Montana enrollment
- 1,264 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.
Hospital Affiliations CMS Care Compare
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
St Vincent Healthcare
Acute Care Hospitals · Billings, MTPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 59102 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 12
Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.
BILLINGS, MT 59102
BILLINGS, MT 59102
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 Kari Bates's NPI number?
The NPI number for Kari Bates is 1679000954. It was assigned to this individual provider in the NPPES registry on May 17, 2017.
Where is Kari Bates located?
Kari Bates practices at 1611 Zimmerman Trl, Billings, MT 59102. The listed phone number is (406) 248-3607.
What is Kari Bates's specialty?
The primary specialty registered for this NPI is Obstetrics & Gynecology with taxonomy code 207V00000X.
Is Kari Bates enrolled in Medicare?
Yes. Kari Bates is registered in the Medicare PECOS enrollment system.
Which organizations bill Medicare for Kari Bates's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Kari Bates reassigns Medicare benefits to 2 organizations: Billings Ob-Gyn Associates, P.C. (Billings, MT) and Billings Clinic (Billings, MT). 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 Kari Bates's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Kari Bates accept?
Health plans from Blue Cross and Blue Shield of Montana, Mountain Health CO-OP, PacificSource Health Plans and Providence Health Plan list Kari Bates 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 Kari Bates affiliated with any hospitals?
According to CMS data, Kari Bates is affiliated with St Vincent Healthcare.
When was this NPI record last updated?
The NPPES record for Kari Bates was last updated on August 3, 2021. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 5 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.
# Dr. Kari Linnea Bates, DO · NPI 1679000954
Obstetrics & Gynecology physician in Billings, Montana. Individual provider, active in the CMS NPPES registry since May 17, 2017.
## Identity
- **NPI:** 1679000954 (Entity type: Individual)
- **Enumerated:** May 17, 2017
- **Primary specialty:** Obstetrics & Gynecology · taxonomy 207V00000X
- **State license:** MED-PHYS-LIC-98130 (Montana)
- **Sole proprietor:** No
## Practice location
- **Address:** 1611 ZIMMERMAN TRL, Billings, MT 59102-7652
- **Phone:** (406) 248-3607
## Medicare
- **Medicare:** Enrolled in Medicare (PECOS)
- **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): Billings Ob-Gyn Associates, P.C. (NPI 1497785588, Billings, MT); Billings Clinic (NPI 1033275557, Billings, MT) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2017
## Record status
- **NPPES last updated:** August 3, 2021
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Source: [NPI Profile](https://npiprofile.com/npi/1679000954) · Data from the CMS NPPES public registry.