ANNA ROWENA CARL MD
NPI 1811979909
Emergency Medicine in Big Sky, MT
About Anna Rowena Carl Md NPPES
Official registry information on file with the National Plan and Provider Enumeration System.
ANNA ROWENA CARL MD (NPI 1811979909) is an individual emergency medicine provider in Big Sky, Montana, licensed in Montana (MED-PHYS-LIC-88485) and active in the NPI registry since November 2005. She is enrolled in Medicare PECOS, is affiliated with Bozeman Health Deaconess Hospital, and maintains 3 additional practice locations.
NPPES Registry Identity
Specialties & Licenses
Other Names 1
Secondary Practice Locations 3
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
Anna Rowena Carl 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
4Medicare enrollment records show Anna Carl reassigns Medicare billing to 4 organizations. Each organization bills Medicare for the services this provider delivers there; the nearest is listed first.
Big Sky, MT 59716
- Reassigned Medicare billing, Montana enrollment
- Also billed through NPI 1588141048 (Montana)
- 99 clinicians in this Medicare group
Bozeman, MT 59715
- Reassigned Medicare billing, Montana enrollment
- 26 clinicians in this Medicare group
Bozeman, MT 59715
- Reassigned Medicare billing, Montana enrollment
- 402 clinicians in this Medicare group
San Francisco, CA 94109
- Reassigned Medicare billing, California enrollment
- 155 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 2
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 2
Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.
Bozeman Health Deaconess Hospital
Acute Care Hospitals · Bozeman, MTBig Sky Medical Center
Critical Access Hospitals · Big Sky, MTPhysician Visit Costs CMS claims · ZIP area
Typical Medicare office-visit costs in the 59716 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.
BIG SKY, MT 59716
BIG SKY, MT 59716
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 Anna Carl's NPI number?
The NPI number for Anna Carl is 1811979909. It was assigned to this individual provider in the NPPES registry on November 15, 2005. The provider is also known as Anna Rowena Bjoring MD.
Where is Anna Carl located?
Anna Carl practices at 334 Town Center Ave, Big Sky, MT 59716. The listed phone number is (406) 995-6995.
What is Anna Carl's specialty?
The primary specialty registered for this NPI is Emergency Medicine with taxonomy code 207P00000X.
Is Anna Carl enrolled in Medicare?
Yes. Anna Carl 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 Anna Carl's services?
According to the CMS Revalidation Reassignment List (October 2026 release), Anna Carl reassigns Medicare benefits to 4 organizations: Bozeman Health Big Sky Medical Center, LLC (Big Sky, MT), Bozeman Health Urgent Care (Bozeman, MT), Bozeman Health Deaconess Hospital (Bozeman, MT) and San Francisco Emergency Medical Associates (San Francisco, CA). 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 Anna Carl's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.
What insurance does Anna Carl accept?
Health plans from Blue Cross and Blue Shield of Montana and Mountain Health CO-OP list Anna Carl 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 Anna Carl affiliated with any hospitals?
According to CMS data, Anna Carl is affiliated with Bozeman Health Deaconess Hospital and Big Sky Medical Center.
When was this NPI record last updated?
The NPPES record for Anna Carl was last updated on April 9, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 18 months 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.
# Anna Rowena Carl, MD · NPI 1811979909
Emergency Medicine physician in Big Sky, Montana. Individual provider, active in the CMS NPPES registry since November 15, 2005.
## Identity
- **NPI:** 1811979909 (Entity type: Individual)
- **Enumerated:** November 15, 2005
- **Primary specialty:** Emergency Medicine · taxonomy 207P00000X
- **State license:** MED-PHYS-LIC-88485 (Montana)
- **Sole proprietor:** No
## Practice location
- **Address:** 334 TOWN CENTER AVE, Big Sky, MT 59716
- **Phone:** (406) 995-6995
## 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): Bozeman Health Big Sky Medical Center, LLC (NPI 1740659952, Big Sky, MT); Bozeman Health Urgent Care (NPI 1740693761, Bozeman, MT); Bozeman Health Deaconess Hospital (NPI 1437529112, Bozeman, MT); San Francisco Emergency Medical Associates (NPI 1134110661, San Francisco, CA) · CMS Revalidation Reassignment List, October 2026 release
- **Medical school:** Columbia University College Of Physicians And Surgeons, class of 1999
## Record status
- **NPPES last updated:** April 9, 2025
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Source: [NPI Profile](https://npiprofile.com/npi/1811979909) · Data from the CMS NPPES public registry.