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Anna Carl, MD

Emergency Medicine · Big Sky

NPI 1811979909

Medicare standing
Clear
Enrolled, allowed to bill and order, not excluded
Plans that list them
Not verified
Not the same as out of network.
Offices
2

Offices

2 locations · Bozeman Health Big Sky Medical Center LLC · Bozeman Health Deaconess Hospital

Looking this up.

Hospitals listed: Big Sky Medical Center · Bozeman Health Deaconess Regional Medical Center. That is not proof they admit you there this week.

Plan participation

Not verified

We could not verify current plan participation for this doctor. This does not mean they are out of network. Call Dr. Carl’s office to ask if they take your plan before you enroll.

California Medical Board record

Licence A75838 · Cancelled

Licence status: Cancelled · since 2001 · Columbia University College of Physicians and Surgeons.

License has been voluntarily canceled, or the license has been expired for at least five years and has not been renewed. No practice is permitted.

No disciplinary actions, convictions, malpractice judgments or citations in this record.

Hospitals they work in

2 hospitals

These rate the hospital, not this clinician. Most measures at most hospitals are no different from the national rate.

  • Bozeman Health Big Sky Medical CenterBig Sky, MTCritical Access Hospital · Voluntary non-profit - Private · Has an emergency department
    No overall ratingNo measure marked better or worse than the national rate
  • Bozeman Health Deaconess HospitalBozeman, MTAcute Care Hospital · Voluntary non-profit - Private · Has an emergency department · Birthing-friendlyPart of Bozeman Deaconess HospitalPatients rate it 4 of 5 · 75% would definitely recommend it
    Overall rating: 4 of 5 starsBetter than the national rate — Clostridium Difficile (C.Diff): 0.449, Oct 2024 – Sep 2025
See every measure and the patient survey for Bozeman Health Deaconess Hospital

Behind the star rating — Deaths: 1 better, 6 the same, 0 worse of 7 measures. Safety: 0 better, 7 the same, 0 worse of 7 measures. Readmissions: 2 better, 7 the same, 1 worse of 10 measures. The star rating is worked out from an earlier period than the measures below, so the two can disagree.

Every scored measure at Bozeman Health Deaconess Hospital
Clostridium Difficile (C.Diff)Infections0.449BetterOct 2024 – Sep 2025
Abdominopelvic accidental puncture or laceration rateComplications and deaths1.38 (0.38 to 2.38) · 844 casesNo differentJul 2022 – Jun 2024
CMS Medicare PSI 90: Patient safety and adverse events compositeComplications and deaths1.07 (0.7 to 1.44)No differentJul 2022 – Jun 2024
Death rate among surgical inpatients with serious treatable complicationsComplications and deaths166.44 (109.49 to 223.4) · 41 casesNo differentJul 2022 – Jun 2024
Death rate for COPD patientsComplications and deaths7.6 · 88 casesNoneJul 2022 – Jun 2025
Death rate for heart attack patientsComplications and deaths10.3 · 87 casesNoneJul 2022 – Jun 2025
Death rate for heart failure patientsComplications and deaths9.6 · 183 casesNoneJul 2022 – Jun 2025
Death rate for pneumonia patientsComplications and deaths12.3 · 215 casesNoneJul 2022 – Jun 2025
Death rate for stroke patientsComplications and deaths7.8 · 111 casesNoneJul 2023 – Jun 2025
Hybrid Hospital-Wide All-Cause Risk Standardized Mortality RateComplications and deaths2.8 · 1,673 casesNoneJul 2024 – Jun 2025
Iatrogenic pneumothorax rateComplications and deaths0.23 (0.01 to 0.44) · 3,574 casesNo differentJul 2022 – Jun 2024
In-hospital fall-associated fracture rateComplications and deaths0.24 (0.04 to 0.45) · 3,588 casesNo differentJul 2022 – Jun 2024
Perioperative pulmonary embolism or deep vein thrombosis rateComplications and deaths4.58 (2.38 to 6.78) · 938 casesNo differentJul 2022 – Jun 2024
Postoperative acute kidney injury requiring dialysis rateComplications and deaths1.42 (0 to 3.02) · 453 casesNo differentJul 2022 – Jun 2024
Postoperative hemorrhage or hematoma rateComplications and deaths2.49 (0.91 to 4.07) · 899 casesNo differentJul 2022 – Jun 2024
Postoperative respiratory failure rateComplications and deaths9.86 (2.45 to 17.27) · 463 casesNo differentJul 2022 – Jun 2024
Postoperative sepsis rateComplications and deaths6.07 (2.31 to 9.83) · 441 casesNo differentJul 2022 – Jun 2024
Postoperative wound dehiscence rateComplications and deaths1.64 (0.16 to 3.12) · 275 casesNo differentJul 2022 – Jun 2024
Pressure ulcer rateComplications and deaths0.58 (0 to 1.45) · 2,571 casesNo differentJul 2022 – Jun 2024
Rate of complications for hip/knee replacement patientsComplications and deaths3.6 · 118 casesNoneApr 2023 – Mar 2025
Catheter Associated Urinary Tract Infections (ICU + select Wards)Infections1.391No differentOct 2024 – Sep 2025
Central Line Associated Bloodstream Infection (ICU + select Wards)Infections0No differentOct 2024 – Sep 2025
MRSA BacteremiaInfections0No differentOct 2024 – Sep 2025
SSI - Colon SurgeryInfections0.819No differentOct 2024 – Sep 2025
Acute Myocardial Infarction (AMI) 30-Day Readmission RateUnplanned return visits14.5 · 114 casesNoneJul 2023 – Jun 2025
Heart failure (HF) 30-Day Readmission RateUnplanned return visits21.1 · 198 casesNoneJul 2023 – Jun 2025
Hospital return days for heart attack patientsUnplanned return visits-18.7 · 117 casesNoneJul 2022 – Jun 2025
Hospital return days for heart failure patientsUnplanned return visits-2.9 · 207 casesNoneJul 2022 – Jun 2025
Hospital return days for pneumonia patientsUnplanned return visits-24.4 · 234 casesNoneJul 2022 – Jun 2025
Pneumonia (PN) 30-Day Readmission RateUnplanned return visits16.2 · 223 casesNoneJul 2023 – Jun 2025
Rate of emergency department (ED) visits for patients receiving outpatient chemotherapyUnplanned return visits5.9 (4.3 to 8.1) · 313 casesNo differentJan 2024 – Dec 2024
Rate of inpatient admissions for patients receiving outpatient chemotherapyUnplanned return visits9.2 (6.9 to 12.1) · 313 casesNo differentJan 2024 – Dec 2024
Rate of readmission after hip/knee replacementUnplanned return visits5.5 · 122 casesNoneJul 2023 – Jun 2025
Rate of readmission for chronic obstructive pulmonary disease (COPD) patientsUnplanned return visits19.3 · 100 casesNoneJul 2023 – Jun 2025
Rate of unplanned hospital visits after colonoscopy (per 1,000 colonoscopies)Unplanned return visits11.7 (9 to 15.1) · 1,538 casesNo differentJan 2022 – Dec 2024
Ratio of unplanned hospital visits after hospital outpatient surgeryUnplanned return visits1.3 (1 to 1.6) · 621 casesNo differentJan 2024 – Dec 2024

What patients said (605 patients answered, 24% of those asked)

Patient survey stars by topic at Bozeman Health Deaconess Hospital
Cleanliness4
Nurse communication4
Doctor communication3
Communication about medicines3
Discharge information4
Overall hospital rating4
Quietness4
Recommend hospital4
Share of patients giving the best answer at Bozeman Health Deaconess Hospital
Room was "always" clean73%
Nurses "always" communicated well82%
Doctors "always" communicated well79%
Staff "always" explained62%
Yes, staff "did" give patients this information89%
Yes, staff "did" give patients information about help after discharge88%
Doctors "always" explained things so they could understand73%
Doctors "always" listened carefully78%
Doctors "always" treated them with courtesy and respect87%
Patients who gave a rating of "9" or "10" (high)74%
Staff "always" explained new medications75%
Nurses "always" explained things so they could understand77%
Nurses "always" listened carefully80%
Nurses "always" treated them with courtesy and respect90%
"Always" quiet at night61%
"YES", patients would definitely recommend the hospital75%
Staff "always" explained possible side effects50%
Yes, staff "did" give patients information about possible symptoms90%

Original Medicare doctor bills

$9,194

Medicare paid this office $9,194 for 76 people.

This is what Medicare paid the clinician — not Medicare Advantage, and not the pharmacy.

Largest Original Medicare bills
Emergency department visit with high level of medical decision making36$4,705$131
Emergency department visit with moderate level of medical decision making28$2,583$92

Who their Medicare patients are

76 Original Medicare patients in 2024. Average age 73 · Women 57% · Also on Medicaid 18% · Health risk score 1.36. At or below the middle of the specialty; the typical emergency medicine clinician is at 2.01.

Conditions among them: High blood pressure 68% · Depression 41% · Atrial fibrillation 28% · Diabetes 26% · Coronary heart disease 22% · Heart failure 18% · Dementia 18% · Cancer 17% · Chronic kidney disease 14%.

The office billed $41,355, Medicare allowed $11,813 and paid $9,194; for 84 services of 14 kinds.

Original Medicare patients only. A risk score of 1.0 is the average Medicare patient; higher means sicker. Any count under 11 is hidden.

Year by year

Original Medicare by year
20247684731.36$41,355$9,194
20237387731.54$43,552$10,107
2022120136741.26$64,434$15,504
2021181216701.74$92,244$25,267
20202526681.20$9,690$2,878
2019100177772.25$65,558$14,578
2018220420732.11$164,332$37,148
2017239432742.20$164,625$35,165
2016143246722.20$96,119$21,979
2015234399722.49$152,528$35,266
2014154258721.98$96,352$22,059
2013206341752.23$94,398$29,914

Original Medicare only. A service billed for fewer than 11 people in a year is hidden, so the lines can add up to less than the year's total.

See the services billed each year

2023: 2 services

Original Medicare services billed in 2023
Emergency department visit with high level of medical decision making38$5,438$139
Emergency department visit with moderate level of medical decision making21$2,235$97

2022: 3 services

Original Medicare services billed in 2022
Emergency department visit with high level of medical decision making74$10,510$138
Emergency department visit with moderate level of medical decision making24$2,163$90
Emergency department visit with low level of medical decision making17$1,043$58

2021: 3 services

Original Medicare services billed in 2021
Emergency department visit with high level of medical decision making110$16,052$145
Emergency department visit with moderate level of medical decision making43$4,216$96
Emergency department visit with low level of medical decision making23$1,508$56

2020: 1 service

Original Medicare services billed in 2020
Emergency department visit with high level of medical decision making13$1,963$151

2019: 5 services

Original Medicare services billed in 2019
Emergency department visit with high level of medical decision making61$8,614$139
Critical care, first 30-74 minutes13$2,515$193
Emergency department visit with moderate level of medical decision making16$1,606$100
Emergency department visit with low level of medical decision making16$901$53
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only55$467$8

2018: 5 services

Original Medicare services billed in 2018
Emergency department visit with high level of medical decision making143$21,516$145
Critical care, first 30-74 minutes36$7,184$194
Emergency department visit with moderate level of medical decision making30$3,293$100
Emergency department visit with low level of medical decision making17$1,641$51
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only130$1,067$8

2017: 5 services

Original Medicare services billed in 2017
Emergency department visit with high level of medical decision making154$21,304$136
Emergency department visit with moderate level of medical decision making42$4,597$94
Critical care, first 30-74 minutes23$4,373$182
Emergency department visit with low level of medical decision making26$1,837$48
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only137$1,031$7

2016: 4 services

Original Medicare services billed in 2016
Emergency department visit with high level of medical decision making103$15,517$148
Emergency department visit with moderate level of medical decision making26$2,832$94
Emergency department visit with low level of medical decision making13$1,336$51
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only71$563$8

2015: 5 services

Original Medicare services billed in 2015
Emergency department visit with high level of medical decision making146$22,579$149
Emergency department visit with moderate level of medical decision making43$4,940$101
Critical care, first 30-74 minutes20$3,949$197
Emergency department visit with low level of medical decision making33$1,978$52
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only123$998$8

2014: 4 services

Original Medicare services billed in 2014
Emergency department visit with high level of medical decision making108$16,294$148
Emergency department visit with moderate level of medical decision making21$2,068$94
Emergency department visit with low level of medical decision making21$1,114$51
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only84$668$8

2013: 5 services

Original Medicare services billed in 2013
Emergency department visit with high level of medical decision making141$20,358$141
Emergency department visit with moderate level of medical decision making33$3,467$96
Critical care, first 30-74 minutes14$2,865$191
Emergency department visit with low level of medical decision making25$1,240$50
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report only105$786$7

Medicaid work

$3,126 in 2022

Medicaid paid $3,126 for 24 billed services this clinician did in 2022, up to 12 people in a month for one service.

Medicaid and CHIP claims where this clinician did the service, fee-for-service and managed care together. Any month with fewer than 11 patients is hidden, so small Medicaid practices undercount.

Largest Medicaid services in 2022
EMERGENCY DEPT VISIT MOD MDM24$3,126
Medicaid work by year
202224112$3,126
2021227325$24,470
202073314$5,067
201936221$1,415
201824112$1,707
See the largest Medicaid services in earlier years

2021

Largest Medicaid services in 2021
EMERGENCY DEPARTMENT VISIT HIGH MDM66$11,895
EMERGENCY DEPT VISIT LOW MDM132$8,855
EMERGENCY DEPT VISIT MOD MDM29$3,720

2020

Largest Medicaid services in 2020
EMERGENCY DEPARTMENT VISIT HIGH MDM22$2,386
EMERGENCY DEPT VISIT MOD MDM24$1,641
EMERGENCY DEPT VISIT LOW MDM27$1,040

2019

Largest Medicaid services in 2019
EMERGENCY DEPARTMENT VISIT HIGH MDM21$1,254
Electrocardiogram, routine ECG with at least 12 leads; interpretation and report only15$161

2018

Largest Medicaid services in 2018
EMERGENCY DEPARTMENT VISIT HIGH MDM24$1,707

Checkups this office reported

Medicare did not publish checkup rates for this clinician.

Medicare’s overall office score
80.8 / 100
Scores the office’s reporting and systems. It is not a grade for how the doctor treats you.

Professional record

NPI
1811979909
Licence
CA A75838California A75838: Cancelled
Trained
Columbia University College of Physicians and Surgeons, 1999
Group
Bozeman Health Big Sky Medical Center LLC · Bozeman Health Deaconess Hospital
Gender
Female
More record details
Sole proprietor
No
Taxonomy
Federal specialty code 207P00000X (207P00000X)
Mailing address
915 Highland Blvd, Bozeman, MT, 59715
NPI first listed
2005-11-15
NPI last updated
2025-04-09
NPI record certified
2025-04-03

This is when the NPI record was last certified, not a medical board exam.

Extra NPI addresses: 83 Beaverhead Tr, Bozeman, MT, 59715 · 915 Highland Blvd, Bozeman, MT, 59715 · 751 S Bascom Ave, San Jose, CA, 95128

This office lists an electronic records connection.