Hospital
Mayo Clinic Health System-Northwest Wisconsin Region, INC.
Mayo Clinic Health System-Northwest Wisconsin Region, INC. was paid $2.07M by Medicaid between Jan 2018 and Dec 2024, across 80 billing codes. Its largest line is 99285, emergency room visit (most serious) — 24% of everything it billed.
33Billing provider infoMAYO CLINIC HEALTH SYSTEM-NORTHWEST WISCONSIN REGION, INC.
BLOOMER, WI 54724
BLOOMER, WI 54724
33aNPI1700837812assigned 05/13/2006
33bProvider typeCritical Access Hospital
28Total paid$2.07M
24GClaims77,001
24DCodes billed80
24AFirst – last monthJan 2018 – Dec 2024
Compared with peers
Next to other Critical Access Hospital providers in Wisconsin
Rank by total paid#32 of 48
Median peer was paid$4.30M
This provider vs. median0.5×
Peers share this provider's primary NPPES type and state. Size alone says nothing about billing quality: a big agency or a hospital system is expected to sit far above the median.
Auditor's notes
Automated statistical signals. Not evidence of fraud — how these are computed.
Entity ProliferationAuthorized official BORTNEM, MARK controls 20+ related entities in our dataset. Read more
Box 24A · Dates of service
Paid by month
Paid that monthNov–Dec 2024: claims still arriving when the file was cut, so these months run low for every provider
By year, as a table
| Year | Claims | Paid | |
|---|---|---|---|
| 2018 | 9,303 | $122K | |
| 2019 | 9,491 | $185K | |
| 2020 | 8,669 | $164K | |
| 2021 | 10,740 | $275K | |
| 2022 | 11,917 | $374K | |
| 2023 | 13,816 | $496K | |
| 2024incomplete | 13,065 | $454K |
Box 24 · Service lines
What it billed for
| Code | Service | Share | Claims | Bene. records | Paid |
|---|---|---|---|---|---|
| 99285 | Emergency room visit (most serious)Emergency department visit for the evaluation and management, high severity with immediate threat to life | 24% | 2,677 | 1,823 | $489K |
| 99284 | Emergency room visit (serious)Emergency department visit for the evaluation and management, high severity | 17% | 2,024 | 1,471 | $344K |
| 96361 | Intravenous infusion, hydration; each additional hour | 14% | 483 | 425 | $281K |
| G0463 | Hospital outpatient clinic visit for assessment and management of a patient | 12% | 10,096 | 7,767 | $244K |
| 99283 | Emergency room visit (moderate)Emergency department visit for the evaluation and management, moderate severity | 9.5% | 769 | 650 | $196K |
| 99214 | Doctor's office visit, returning patient (more involved)Office or other outpatient visit for the evaluation and management of an established patient, moderate complexity | 3.6% | 6,560 | 4,524 | $75K |
| 74177 | Computed tomography, abdomen and pelvis; with contrast material | 2.8% | 181 | 171 | $57K |
| 99213 | Doctor's office visit, returning patient (routine)Office or other outpatient visit for the evaluation and management of an established patient, low complexity | 2.3% | 5,140 | 3,524 | $48K |
| 87631 | 1.6% | 481 | 422 | $33K | |
| 70450 | Computed tomography, head or brain; without contrast material | 1.5% | 109 | 97 | $31K |
| 84443 | Thyroid stimulating hormone (TSH) | 1.3% | 2,578 | 2,400 | $27K |
| 87635 | Infectious agent detection by nucleic acid; SARS-CoV-2 (COVID-19), amplified probe | 1.3% | 841 | 769 | $27K |
68 more codes
| 99215 | Doctor's office visit, returning patient (complex) | 1.2% | 2,187 | $25K |
| 80053 | Comprehensive metabolic panel | 1.1% | 3,319 | $22K |
| 87651 | Infectious agent detection by nucleic acid; Streptococcus, group A, amplified probe | 1.0% | 724 | $21K |
| 85025 | Blood count; complete (CBC), automated, and automated differential WBC count | <1% | 5,610 | $20K |
| 80048 | Basic metabolic panel (calcium, ionized) | <1% | 3,582 | $15K |
| 83036 | Hemoglobin; glycosylated (A1C) | <1% | 2,588 | $15K |
| 96372 | Therapeutic, prophylactic, or diagnostic injection; subcutaneous or intramuscular | <1% | 1,757 | $14K |
| 87636 | Infectious agent detection by nucleic acid; SARS-CoV-2 and influenza virus types A and B | <1% | 171 | $12K |
| 80061 | Lipid panel | <1% | 1,196 | $9K |
| 71046 | Radiologic examination, chest; 2 views | <1% | 804 | $8K |
| 96365 | Intravenous infusion, for therapy, prophylaxis, or diagnosis; initial, up to 1 hour | <1% | 45 | $7K |
| C9803 | Hospital outpatient clinic visit specimen collection for severe acute respiratory syndrome coronavirus 2 (sars-cov-2) (coronavirus disease [covid-19]), any specimen source | <1% | 892 | $7K |
| 96374 | Therapeutic, prophylactic, or diagnostic injection; intravenous push, single or initial substance | <1% | 989 | $5K |
| 83735 | <1% | 1,253 | $4K | |
| 93005 | Electrocardiogram, routine ECG with at least 12 leads; tracing only, without interpretation and report | <1% | 1,412 | $4K |
| 85610 | <1% | 3,532 | $3K | |
| 83605 | <1% | 595 | $3K | |
| 86140 | <1% | 934 | $3K | |
| 81001 | <1% | 1,614 | $3K | |
| 84484 | <1% | 214 | $2K | |
| U0003 | Infectious agent detection by nucleic acid (dna or rna); severe acute respiratory syndrome coronavirus 2 (sars-cov-2) (coronavirus disease [covid-19]), amplified probe technique, making use of high throughput technologies as described by cms-2020-01-r | <1% | 29 | $1K |
| Q3014 | Telehealth originating site facility fee | <1% | 215 | $1K |
| G2211 | Visit complexity inherent to evaluation and management associated with medical care services that serve as the continuing focal point for all needed health care services and/or with medical care services that are part of ongoing care related to a patient's single, serious condition or a complex condition. (add-on code, list separately in addition to office/outpatient evaluation and management visit, new or established) | <1% | 415 | $1K |
| 97110 | Therapeutic procedure, each 15 minutes; therapeutic exercises to develop strength and endurance, flexibility and range of motion | <1% | 1,290 | $1K |
| 36415 | Collection of venous blood by venipuncture | <1% | 6,018 | $1K |
| 87880 | Infectious agent antigen detection by immunoassay; Streptococcus, group A | <1% | 73 | $883.18 |
| 90471 | Immunization administration (includes percutaneous, intradermal, subcutaneous, or intramuscular injections), 1 vaccine | <1% | 193 | $644.89 |
| 85027 | <1% | 208 | $639.46 | |
| 87660 | <1% | 42 | $565.74 | |
| 87480 | <1% | 42 | $565.74 | |
| 87510 | <1% | 42 | $565.74 | |
| 71045 | Radiologic examination, chest; single view | <1% | 172 | $549.15 |
| 83880 | <1% | 27 | $488.21 | |
| 87086 | Culture, bacterial; quantitative colony count, urine | <1% | 166 | $431.43 |
| 91322 | <1% | 97 | $430.84 | |
| 99443 | <1% | 15 | $412.76 | |
| 90686 | <1% | 246 | $407.84 | |
| 90662 | <1% | 176 | $377.32 | |
| 99308 | Subsequent nursing facility care, per day, straightforward | <1% | 30 | $326.50 |
| 83690 | <1% | 86 | $324.51 | |
| 82248 | <1% | 119 | $321.46 | |
| 81025 | <1% | 41 | $309.20 | |
| 99211 | Office or other outpatient visit for the evaluation and management of an established patient, minimal severity | <1% | 43 | $305.21 |
| 87804 | Infectious agent antigen detection by immunoassay; Influenza, each type | <1% | 30 | $261.11 |
| 99442 | <1% | 18 | $256.67 | |
| 81003 | <1% | 190 | $192.15 | |
| 36416 | <1% | 417 | $163.19 | |
| 90480 | <1% | 97 | $131.10 | |
| 82077 | <1% | 14 | $125.76 | |
| 96375 | Therapeutic injection; each additional sequential IV push | <1% | 185 | $90.03 |
| 82947 | <1% | 45 | $86.54 | |
| 87077 | <1% | 17 | $79.58 | |
| 87186 | <1% | 16 | $53.38 | |
| 90656 | <1% | 34 | $37.70 | |
| 82565 | <1% | 17 | $30.72 | |
| 0764T | <1% | 32 | $18.22 | |
| 87103 | <1% | 17 | $12.88 | |
| 0124A | <1% | 40 | $11.65 | |
| 87040 | <1% | 32 | $10.84 | |
| 94640 | Pressurized or nonpressurized inhalation treatment for acute airway obstruction | <1% | 16 | $10.34 |
| J7030 | Infusion, normal saline solution , 1000 cc | <1% | 80 | $8.64 |
| J1885 | Injection, ketorolac tromethamine, per 15 mg | <1% | 117 | $2.54 |
| J2405 | Injection, ondansetron hydrochloride, per 1 mg | 0% | 13 | $0.00 |
| J2704 | Injection, propofol, 10 mg | 0% | 38 | $0.00 |
| G0008 | Administration of influenza virus vaccine | 0% | 302 | $0.00 |
| G0439 | Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit | 0% | 13 | $0.00 |
| 97112 | Therapeutic procedure, each 15 minutes; neuromuscular reeducation of movement, balance, coordination | 0% | 52 | $0.00 |
| 97140 | Manual therapy techniques, each 15 minutes (e.g., mobilization/manipulation, manual lymphatic drainage) | 0% | 27 | $0.00 |
Claims and beneficiary counts add up across code × month rows, so one patient seen every month counts many times. Rows with fewer than 12 claims are suppressed by HHS, so small lines can be missing.
From NPPES
Who's on the registration
Authorized officialBORTNEM, MARK (CFO)
Matched on the authorized-official name exactly as entered in NPPES. A common name can match unrelated people.