Dr. Brian S. Williams, MD
- Medicare services, 2024
- 42
- Medicare patients, 2024
- 40
- Part D claims, 2019
- 27
- MIPS score, 2024
- 83
- Hospital affiliations
- 1
- Practice address
- 600 Highland Ave, Madison, WI 53792
- Practice phone
- Call (608) 265-1978
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
University Health Services - Madison (Highland Ave)
College / University Student Health · Madison, Wisconsin
Find Dr. Williams' professional email, personal email and mobile number
Dmand AI checks each channel through healthcare-specific waterfall enrichment. See what is on file with a free account, with practice phones, licenses and affiliations.
Dr. Brian S. Williams is a hospitalist in Madison, Wisconsin
Dr. Williams practices at University Health Services - Madison (Highland Ave) in Madison, Wisconsin.
Dr. Williams' NPI, 1396076618, was assigned on January 26, 2010. Dr. Williams holds Wisconsin license 69345.
- NPI
- 1396076618NPI Registry (opens in a new tab)
- Medicare PAC ID
- 8628201928
- NPI enumeration date
- January 26, 2010
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (608) 265-1978
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 43
- Medical school graduation
- 2009
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Brian S. Williams practices at University Health Services - Madison (Highland Ave) in Madison, Wisconsin
Dr. Williams' primary practice is University Health Services - Madison (Highland Ave), at 600 Highland Ave, Madison, WI 53792. The practice phone is (608) 265-1978.
- University Health Services - Madison (Highland Ave)600 Highland Ave, Madison, WI 53792Phone(608) 265-1978
Source: Dmand AI Affiliation Data
Dr. Brian S. Williams is affiliated with 4 sites of care and 2 medical groups
Dr. Williams' primary practice is University Health Services - Madison (Highland Ave) in Madison, Wisconsin. Dr. Williams is also affiliated with University Hospital. The medical group on file is UW Health. Dmand AI also links Dr. Williams to 2 more group practices and clinics and 1 medical group, each named with a free account. Dr. Williams' employer is on file too: a school & student health.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. Brian S. Williams' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Williams practices, 4 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| University Health Services - Madison (Highland Ave) | Available with a free account |
| +3 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Brian S. Williams is one of 773 hospitalists in Wisconsin
Hospitalist is Dr. Williams' primary specialty in the NPI Registry, under taxonomy code 208M00000X. Dmand AI has Dr. Williams' licenses on file in 2 states: Wisconsin and California.
Specialties and state licenses
- Hospitalist, WisconsinPrimary
- Internal medicine, California
Hospitalists near Dr. Williams
Counts of hospitalists 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. Brian S. Williams billed Medicare for 42 services in 2024
CMS data shows 42 Medicare services from Dr. Williams across 2 procedure codes in 2024, for 40 Medicare patients. Medicare paid $3,464 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Williams' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1062024: 2477%
- Other services
- 2023: 262024: 1831%
Dr. Williams compared with the Wisconsin median for hospitalists, 2024
- Dr. Williams
- Wisconsin median
- Medicare services
- 42vs 35788% below
- Medicare patients
- 40vs 16576% below
- Part D claims
- 27vs 7865% below
Medians across 743 hospitalists in Wisconsin with Dmand AI profiles that report each measure.
Dr. Williams' 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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Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Williams and other hospitalists in Wisconsin.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Brian S. Williams treated 40 Medicare patients in 2024, average age 74
CMS counts 40 Medicare patients who saw Dr. Williams in 2024. The largest group is 75 to 84, with 14 patients. 75% of them have high blood pressure, and 73% have high cholesterol. Their average risk score is 3.33, 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. Williams' median patient age at 10, with 52% women.
Dr. Williams' Medicare patients by age, 2024
CMS leaves out age groups with fewer than 11 patients.
Dr. Williams' Medicare patients by sex, 2024
- Women2050%
- Men2050%
Chronic conditions among Dr. Williams' Medicare patients, 2024
- High blood pressure75%
- High cholesterol73%
- Heart failure60%
- Mood disorders58%
- Atrial fibrillation53%
- Anxiety50%
- Depression50%
- Arthritis48%
Share of Medicare patients with each condition. A patient can have several.
Dr. Williams' patients across all payers
Dmand AI patient panel data covers Medicare, Medicaid and commercial patients.
Patient panel by age, all payers
Median age 10
Patient panel by sex, all payers
- Women52%
- Men48%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Brian S. Williams wrote 27 Medicare Part D claims in 2019
In 2019, Dr. Williams wrote 27 Medicare Part D claims. Every claim was for a generic drug. They cover 2 drugs, with $1,037 in total drug cost.
Dr. Williams' most prescribed drugs by claims, 2019
CMS names a drug when it has 11 or more claims. Share is of the claims for drugs CMS names.
Source: Medicare Part D Prescribers - by Provider and Drug (CMS), 2024 data, released May 6, 2026
Dr. Brian S. Williams scored 83 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 83 out of 100 for Dr. Williams for performance year 2024, reported as part of a group. Dr. Williams accepts Medicare assignment, so Medicare's approved amount is taken as full payment.
- Accepts Medicare assignment
- Yes
Dr. Williams' MIPS scores, performance year 2024
- 83of 100Final score
- 87.8of 100Quality
- 77of 100Promoting Interoperability
- 40of 100Improvement Activities
- 76of 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. Brian S. Williams received $269 in industry payments from 2023 to 2024
CMS Open Payments shows 13 general payments to Dr. Williams from 2 drug and device companies from 2023 to 2024. Food and beverage make up the largest share, 100% of the total. Sumitomo Pharma America, Inc. paid the most, $217.
General payments to Dr. Williams by program year, 2023 to 2024
Companies that paid Dr. Williams the most, 2023 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Sources for Dr. Brian S. Williams'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) |
| 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) |
| 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. Brian S. Williams
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. Brian S. Williams' NPI number?
Dr. Brian S. Williams' NPI number is 1396076618. It was assigned on January 26, 2010, and it is active in the NPI Registry.
What kind of doctor is Dr. Brian S. Williams?
Dr. Brian S. Williams is a hospitalist in Madison, Wisconsin. The primary specialty in the NPI Registry is Hospitalist Physician (taxonomy code 208M00000X).
Where does Dr. Brian S. Williams practice?
Dr. Williams practices at 600 Highland Ave, Madison, WI 53792. Dr. Williams' primary practice is University Health Services - Madison (Highland Ave) in Madison, Wisconsin. Dmand AI also links Dr. Williams to 2 group practices and clinics and 1 medical group.
What is Dr. Brian S. Williams' office phone number?
The practice phone on file for Dr. Williams is (608) 265-1978.
What is Dr. Brian S. Williams' medical license number?
Dr. Williams holds Wisconsin license 69345, one of the licenses on file in 2 states.
Which states has Dr. Brian S. Williams been licensed in?
Dmand AI has state licenses on file for Dr. Williams in Wisconsin and California.
Which hospitals is Dr. Brian S. Williams affiliated with?
Dr. Williams is affiliated with University Hospital.
What medical group is Dr. Brian S. Williams part of?
Dr. Williams is linked to UW Health. Dmand AI links Dr. Williams to 1 more medical group.
Does Dr. Brian S. Williams accept Medicare?
Yes. CMS data shows Dr. Williams billed Medicare for 42 services in 2024, and Dr. Williams accepts Medicare assignment.
What is Dr. Brian S. Williams' MIPS score?
Dr. Williams' MIPS final score for performance year 2024 is 83 out of 100, reported as part of a group.
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How many Medicare patients does Dr. Brian S. Williams see?
CMS counts 40 Medicare patients who saw Dr. Williams in 2024, with an average age of 74.
What services does Dr. Brian S. Williams bill to Medicare?
In 2024, Dr. Williams' most billed Medicare services were hospital inpatient care (99223) and medicare service (G0316).
What drugs does Dr. Brian S. Williams prescribe most?
In 2019 Medicare Part D data, Dr. Williams' most prescribed drugs by claims were Metoprolol Succinate and Cefpodoxime Proxetil.
Has Dr. Brian S. Williams received payments from drug or device companies?
CMS Open Payments shows $269 in general payments to Dr. Williams from 2 companies from 2023 to 2024. The largest total came from Sumitomo Pharma America, Inc.
How long has Dr. Brian S. Williams been practicing?
Dr. Williams graduated from medical school in 2009, 17 years ago.
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