PATRICIA ISABELLA RONDAIN MD
NPI 1780160721
Internal Medicine - Infectious Disease in Billings, MT
About Patricia Isabella Rondain Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
PATRICIA ISABELLA RONDAIN MD (NPI 1780160721) is an individual infectious disease provider in Billings, Montana, licensed in Montana (MED-PHYS-LIC-122801) and active in the NPI registry since July 2018. She is enrolled in Medicare PECOS, is affiliated with Billings Clinic, and is a graduate of Other (2014).
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 and accepts Medicare assignment
Patricia Isabella Rondain 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 Patricia Isabella Rondain reassigns Medicare billing to 2 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
Columbus, MT 59019
- Reassigned Medicare billing, Montana enrollment
- 86 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 3
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Billings Clinic
Acute Care Hospitals · Billings, MTDaniels Memorial Hospital
Critical Access Hospitals · Scobey, MTCentral Montana Medical Center
Critical Access Hospitals · Lewistown, MTPhysician 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.
Medicare Quality Performance CMS QPP · MIPS
Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.
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 Patricia Isabella Rondain's NPI number?
The NPI number for Patricia Isabella Rondain is 1780160721. It was assigned to this individual provider in the NPPES registry on July 12, 2018.
Where is Patricia Isabella Rondain located?
Patricia Isabella Rondain practices at 801 N 29th St, Billings, MT 59101. The listed phone number is (406) 238-2500.
What is Patricia Isabella Rondain's specialty?
The primary specialty registered for this NPI is Internal Medicine, specializing in Infectious Disease, with taxonomy code 207RI0200X.
Is Patricia Isabella Rondain enrolled in Medicare?
Yes. Patricia Isabella Rondain 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 Patricia Isabella Rondain's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Patricia Isabella Rondain reassigns Medicare benefits to 2 organizations: Billings Clinic (Billings, MT) and Stillwater Hospital Association, Inc. (Columbus, 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 Patricia Isabella Rondain's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Patricia Isabella Rondain accept?
Health plans from Blue Cross and Blue Shield of Montana, Mountain Health CO-OP, PacificSource Health Plans and Providence Health Plan list Patricia Isabella Rondain 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 Patricia Isabella Rondain affiliated with any hospitals?
According to CMS data, Patricia Isabella Rondain is affiliated with Billings Clinic, Daniels Memorial Hospital and Central Montana Medical Center.
When was this NPI record last updated?
The NPPES record for Patricia Isabella Rondain was last updated on September 29, 2026. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 33 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.
# Patricia Isabella Rondain, MD · NPI 1780160721
Infectious Disease physician in Billings, Montana. Individual provider, active in the CMS NPPES registry since July 12, 2018.
## Identity
- **NPI:** 1780160721 (Entity type: Individual)
- **Enumerated:** July 12, 2018
- **Primary specialty:** Internal Medicine - Infectious Disease · taxonomy 207RI0200X
- **State license:** MED-PHYS-LIC-122801 (Montana)
- **Sole proprietor:** Yes
## 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:** 2 organizations under Medicare reassignment (form CMS-855R): Billings Clinic (NPI 1326104845, Billings, MT); Stillwater Hospital Association, Inc. (NPI 1053488387, Columbus, MT) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Other, class of 2014
## Record status
- **NPPES last updated:** September 29, 2026
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Source: [NPI Profile](https://npiprofile.com/npi/1780160721) · Data from the CMS NPPES public registry.