Dr. Bret Keenan Stysly, MD
- Medicare services, 2024
- 1,836
- Medicare patients, 2024
- 454
- Part D claims, 2024
- 3,816
- MIPS score, 2024
- 91
- Hospital affiliations
- 6
- Practice address
- 333 Pine Ridge Blvd, Wausau, WI 54401
- Practice phone
- Call (715) 847-2000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Find Dr. Stysly's professional email, personal email and mobile number
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Dr. Bret Keenan Stysly is an internist in Wausau, Wisconsin
Dr. Stysly practices at Aspirus Wausau Hospital in Wausau, Wisconsin, part of Aspirus.
Dr. Stysly's NPI, 1104188416, was assigned on June 12, 2012. Dr. Stysly holds Georgia license 73402.
- NPI
- 1104188416NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8224344544
- NPI enumeration date
- June 12, 2012
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (715) 847-2000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 40
- Medical school graduation
- 2012
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Bret Keenan Stysly practices at Aspirus Wausau Hospital in Wausau, Wisconsin
Dr. Stysly's primary practice is Aspirus Wausau Hospital, at 333 Pine Ridge Blvd, Wausau, WI 54401 in Marathon County. The practice phone is (715) 847-2000.
- Aspirus Wausau Hospital333 Pine Ridge Blvd, Wausau, WI 54401 · Marathon CountyPhone(715) 847-2000
Source: Dmand AI Affiliation Data
Dr. Bret Keenan Stysly is affiliated with 8 sites of care and 10 medical groups
Dr. Stysly's primary practice is Aspirus Wausau Hospital in Wausau, Wisconsin, part of Aspirus. Dr. Stysly is also affiliated with Aspirus Rhinelander Hospital. The medical group on file is Aspirus Medical Group. Dmand AI also links Dr. Stysly to 4 more hospitals, 9 medical groups and 2 skilled nursing facilities, each named with a free account.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Bret Keenan Stysly's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Stysly practices, 8 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Aspirus Wausau Hospital | Available with a free account |
| +7 more sites and 9 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
For health IT teams
Dmand AI maps EHR vendors, IT decision makers and buying committees across Aspirus and 6.2K+ hospitals, with verified contacts in the same login.
Dr. Bret Keenan Stysly is one of 1,675 internists in Wisconsin
Internal medicine is Dr. Stysly's primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Stysly is board certified in critical care medicine by the American Board of Internal Medicine. Dr. Stysly is licensed in Georgia.
Specialties and state licenses
- Internal medicine, GeorgiaPrimary
Internists near Dr. Stysly
Counts of internists with a Dmand AI profile, by place and practice. Each opens the list.
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Peer Benchmarks
Dr. Bret Keenan Stysly billed Medicare for 1,836 services in 2024
CMS data shows 1,836 Medicare services from Dr. Stysly across 25 procedure codes in 2024, for 454 Medicare patients. Medicare paid $107,191 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Stysly's Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1,0052024: 1,004No change
- Tests and treatments
- 2023: 5462024: 49210%
- Surgery
- 2023: 3052024: 2944%
- Imaging
- 2023: 192024: 3584%
- Other services
- 2023: 02024: 11
Dr. Stysly compared with the Wisconsin median for internists, 2024
- Dr. Stysly
- Wisconsin median
- Medicare services
- 1,836vs 4574.0 times
- Medicare patients
- 454vs 1992.3 times
- Part D claims
- 3,532vs 4338.2 times
Medians across 1,658 internists in Wisconsin with Dmand AI profiles that report each measure.
Dr. Stysly's most billed Medicare procedure codes, 2024
CMS publishes codes billed for 11 or more Medicare patients. Each label is the code family; CPT descriptions are licensed by the AMA.
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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Bret Keenan Stysly treated 454 Medicare patients in 2024, average age 73
CMS counts 454 Medicare patients who saw Dr. Stysly in 2024. The largest group is 65 to 74, with 234 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 21% are also on Medicaid. Their average risk score is 1.81, where 1.00 is the Medicare average, so they are sicker than most Medicare patients.
Across all payers, Dmand AI patient panel data puts Dr. Stysly's median patient age at 70, with 49% women.
Dr. Stysly's Medicare patients by age, 2024
Dr. Stysly's Medicare patients by sex, 2024
- Women23151%
- Men22349%
Chronic conditions among Dr. Stysly's Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- COPD52%
- Ischemic heart disease46%
- Heart failure42%
- Arthritis40%
- Chronic kidney disease34%
- Atrial fibrillation31%
Share of Medicare patients with each condition. A patient can have several.
Dr. Stysly's patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 70
Patient panel by sex, all payers
- Women49%
- Men51%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Bret Keenan Stysly wrote 3,816 Medicare Part D claims in 2024
In 2024, Dr. Stysly wrote 3,816 Medicare Part D claims for 425 patients. 39% of them were for generic drugs. CMS names the drug for 3,532 of them, across 53 drugs with 11 or more claims each, at $1,459,626 in total drug cost. In 2023, CMS named 3,432 claims across 35 drugs.
Dr. Stysly's Part D claims by kind of drug, 2024
- Generic1,478 claims39%
- Brand-name2,338 claims61%
Dr. Stysly's most prescribed drugs by claims, 2024
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Drug classes CMS tracks in Dr. Stysly's Part D claims, 2024
- Antibiotics6%232 of 3,816 claims
Share of all Part D claims for each drug class CMS reports on. Classes with no claims are left out.
Part D claims for drugs CMS names, 2023 to 2024
- 2023
- 2024
- Claims for drugs CMS names
- 2023: 3,4322024: 3,5323%
Drugs named by CMS: 53 in 2024, 35 in 2023.
Sources: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026; and Medicare Part D Prescribers - by Provider (CMS), 2024 data
Dr. Bret Keenan Stysly scored 91 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 91 out of 100 for Dr. Stysly for performance year 2024, reported as part of a group. Dr. Stysly accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Stysly's MIPS scores, performance year 2024
- 91of 100Final score
- 87.4of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
- 78of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Sources: Doctors and Clinicians National Downloadable File (CMS); and Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Bret Keenan Stysly received $13,301 in industry payments from 2018 to 2025
CMS Open Payments shows 102 general payments to Dr. Stysly from 24 drug and device companies from 2018 to 2025. Travel and lodging make up the largest share, 46% of the total. Intuitive Surgical, Inc. paid the most, $10,022.
General payments to Dr. Stysly by program year, 2018 to 2025
General payments to Dr. Stysly by kind, 2018 to 2025
- Travel and lodging$6,16546%
- Speaker and faculty fees$4,50034%
- Food and beverage$2,36118%
- Consulting fees$1501%
- Other$1251%
Companies that paid Dr. Stysly the most, 2018 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Bret Keenan Stysly is board certified in critical care medicine
- Board certified in critical care medicine
- Board certified in internal medicine
- Board certified in pulmonary disease
Source: Dmand AI Professional Profile Data
Sources for Dr. Bret Keenan Stysly's profile data
| Data on this page | Source |
|---|---|
| NPI, name, sex, specialty and licenses | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Professional Profile Data |
| Practice locations and phone | Dmand AI Affiliation Data |
| Primary practice, affiliations and health system | Dmand AI Affiliation DataDmand AI Org Hierarchy Data |
| Medicare services and procedure codes | Medicare Physician & Other Practitioners - by Provider and Service (CMS) (opens in a new tab) |
| State medians for the same specialty | Dmand AI Peer Benchmarks |
| Medicare patients and the all-payer patient panel | Dmand AI Patient Panel DataMedicare Physician & Other Practitioners - by Provider (CMS) (opens in a new tab) |
| Part D prescribing | Medicare Part D Prescribers - by Provider and Drug (CMS) (opens in a new tab)Medicare Part D Prescribers - by Provider (CMS) (opens in a new tab) |
| MIPS scores, telehealth, assignment and procedure percentiles | Doctors and Clinicians National Downloadable File (CMS) (opens in a new tab)Clinician Public Reporting: Overall MIPS Performance (CMS) (opens in a new tab) |
| Industry payments | Open Payments (CMS) (opens in a new tab) |
| Training, board certification and memberships | Dmand AI Professional Profile Data |
| EHR at each practice site | Dmand AI Technology Install Data |
| Similar physicians | Dmand AI Affiliation Data |
Data last refreshed October 2026Report an inaccuracyRemove my information
FAQ
Frequently asked questions about Dr. Bret Keenan Stysly
Spotted something out of date? Email hello@dmand.ai and we will check the record. Contact details live in the free trial.
What is Dr. Bret Keenan Stysly's NPI number?
Dr. Bret Keenan Stysly's NPI number is 1104188416. It was assigned on June 12, 2012, and it is active in the NPI Registry.
What kind of doctor is Dr. Bret Keenan Stysly?
Dr. Bret Keenan Stysly is an internist in Wausau, Wisconsin. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. Bret Keenan Stysly practice?
Dr. Stysly practices at 333 Pine Ridge Blvd, Wausau, WI 54401. Dr. Stysly's primary practice is Aspirus Wausau Hospital in Wausau, Wisconsin, part of Aspirus. Dmand AI also links Dr. Stysly to 4 hospitals, 9 medical groups and 2 skilled nursing facilities.
What is Dr. Bret Keenan Stysly's office phone number?
The practice phone on file for Dr. Stysly is (715) 847-2000.
What is Dr. Bret Keenan Stysly's medical license number?
Dr. Stysly holds Georgia license 73402.
Which hospitals is Dr. Bret Keenan Stysly affiliated with?
Dr. Stysly practices at Aspirus Wausau Hospital in Wausau, Wisconsin. Dr. Stysly is also affiliated with Aspirus Rhinelander Hospital. Dmand AI links Dr. Stysly to 4 more hospitals.
What medical group is Dr. Bret Keenan Stysly part of?
Dr. Stysly is linked to Aspirus Medical Group. Dmand AI links Dr. Stysly to 9 more medical groups.
Does Dr. Bret Keenan Stysly accept Medicare?
Yes. CMS data shows Dr. Stysly billed Medicare for 1,836 services in 2024, and Dr. Stysly accepts Medicare assignment.
What is Dr. Bret Keenan Stysly's MIPS score?
Dr. Stysly's MIPS final score for performance year 2024 is 91 out of 100, reported as part of a group.
How many Medicare patients does Dr. Bret Keenan Stysly see?
CMS counts 454 Medicare patients who saw Dr. Stysly in 2024, with an average age of 73.
Show 5 more questionsShow fewer questions
Is Dr. Bret Keenan Stysly board certified?
Yes. Dr. Stysly is board certified in critical care medicine by the American Board of Internal Medicine.
What services does Dr. Bret Keenan Stysly bill to Medicare?
In 2024, Dr. Stysly's most billed Medicare services were hospital inpatient care (99232), critical care (99291) and lung function service (94729).
What drugs does Dr. Bret Keenan Stysly prescribe most?
In 2024 Medicare Part D data, Dr. Stysly's most prescribed drugs by claims were Trelegy Ellipta, Albuterol Sulfate Hfa and Fluticasone-Salmeterol.
Has Dr. Bret Keenan Stysly received payments from drug or device companies?
CMS Open Payments shows $13,301 in general payments to Dr. Stysly from 24 companies from 2018 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. Bret Keenan Stysly been practicing?
Dr. Stysly graduated from medical school in 2012, 14 years ago.
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