Dr. Peter Anthony Williams, MD
- Medicare services, 2024
- 5,502
- Medicare patients, 2024
- 3,255
- MIPS score, 2024
- 75
- Hospital affiliations
- 5
- Medical groups
- 3
- Practice address
- 3333 North Seminary, Galesburg, IL 61401
- Practice phone
- Call (309) 344-3161
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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Dr. Peter Anthony Williams is a diagnostic radiologist in Galesburg, Illinois
Dr. Williams practices at OSF St. Mary Medical Center in Galesburg, Illinois, part of OSF HealthCare System.
Dr. Williams' NPI, 1891864625, was assigned on November 7, 2006. Dr. Williams graduated from Rush Medical College of Rush University in 1991. Dr. Williams holds Illinois license 036-092938.
- NPI
- 1891864625NPI Registry (opens in a new tab)
- Medicare PAC ID
- 0749192003
- NPI enumeration date
- November 7, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (309) 344-3161
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 61
- Medical school graduation
- 1991
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. Peter Anthony Williams practices at OSF St. Mary Medical Center in Galesburg, Illinois
Dr. Williams' primary practice is OSF St. Mary Medical Center, at 3333 North Seminary, Galesburg, IL 61401 in Knox County. The practice phone is (309) 344-3161.
- OSF St. Mary Medical Center3333 North Seminary, Galesburg, IL 61401 · Knox CountyPhone(309) 344-3161
Source: Dmand AI Affiliation Data
Dr. Peter Anthony Williams is affiliated with 9 sites of care and 3 medical groups
Dr. Williams' primary practice is OSF St. Mary Medical Center in Galesburg, Illinois, part of OSF HealthCare System. Dr. Williams is also affiliated with OSF Saint Francis Medical Center. The medical group on file is OSF Multi-Specialty Group. Dmand AI also links Dr. Williams to 3 more hospitals, 3 group practices and clinics, 2 medical groups and 1 breast imaging center, 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. Peter Anthony Williams' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Williams practices, 9 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| OSF St. Mary Medical Center | Available with a free account |
| +8 more sites and 2 medical groups | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. Peter Anthony Williams is one of 1,336 diagnostic radiologists in Illinois
Diagnostic radiology is Dr. Williams' primary specialty in the NPI Registry, under taxonomy code 2085R0202X. Dr. Williams is licensed in Illinois.
Specialties and state licenses
- Diagnostic radiology, IllinoisPrimary
Diagnostic radiologists near Dr. Williams
Counts of diagnostic radiologists 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. Peter Anthony Williams billed Medicare for 5,502 services in 2024
CMS data shows 5,502 Medicare services from Dr. Williams across 49 procedure codes in 2024, for 3,255 Medicare patients. Medicare paid $124,810 for them.
Dr. Williams' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Imaging
- 2023: 7,6812024: 5,25432%
- Other services
- 2023: 2482024: 17828%
- Surgery
- 2023: 432024: 5630%
- Tests and treatments
- 2023: 442024: 1468%
Where Dr. Williams' Medicare services took place, 2024
- In an office431%
- In a facility5,45999%
Dr. Williams compared with the Illinois median for diagnostic radiologists, 2024
- Dr. Williams
- Illinois median
- Medicare services
- 5,502vs 2,5752.1 times
- Medicare patients
- 3,255vs 1,83677% above
Medians across 1,261 diagnostic radiologists in Illinois 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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Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Peter Anthony Williams treated 3,255 Medicare patients in 2024, average age 75
CMS counts 3,255 Medicare patients who saw Dr. Williams in 2024. The largest group is 65 to 74, with 1,452 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 14% are also on Medicaid. Their average risk score is 1.32, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Williams' median patient age at 68, with 68% women.
Dr. Williams' Medicare patients by age, 2024
Dr. Williams' Medicare patients by sex, 2024
- Women2,24369%
- Men1,01231%
Chronic conditions among Dr. Williams' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis48%
- Chronic kidney disease29%
- Anxiety27%
- COPD27%
- Diabetes27%
- Ischemic heart disease24%
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 68
Patient panel by sex, all payers
- Women68%
- Men32%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. Peter Anthony Williams scored 75 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 75 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
- MIPS final score, 2024
- 75 of 100
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. Peter Anthony Williams graduated from Rush Medical College of Rush University
Dr. Williams graduated from Rush Medical College of Rush University in 1991.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Peter Anthony 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) |
| 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) |
| 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. Peter Anthony 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. Peter Anthony Williams' NPI number?
Dr. Peter Anthony Williams' NPI number is 1891864625. It was assigned on November 7, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. Peter Anthony Williams?
Dr. Peter Anthony Williams is a diagnostic radiologist in Galesburg, Illinois. The primary specialty in the NPI Registry is Diagnostic Radiology Physician (taxonomy code 2085R0202X).
Where does Dr. Peter Anthony Williams practice?
Dr. Williams practices at 3333 North Seminary, Galesburg, IL 61401. Dr. Williams' primary practice is OSF St. Mary Medical Center in Galesburg, Illinois, part of OSF HealthCare System. Dmand AI also links Dr. Williams to 3 hospitals, 3 group practices and clinics, 2 medical groups and 1 breast imaging center.
What is Dr. Peter Anthony Williams' office phone number?
The practice phone on file for Dr. Williams is (309) 344-3161.
What is Dr. Peter Anthony Williams' medical license number?
Dr. Williams holds Illinois license 036-092938.
Which hospitals is Dr. Peter Anthony Williams affiliated with?
Dr. Williams practices at OSF St. Mary Medical Center in Galesburg, Illinois. Dr. Williams is also affiliated with OSF Saint Francis Medical Center. Dmand AI links Dr. Williams to 3 more hospitals.
What medical group is Dr. Peter Anthony Williams part of?
Dr. Williams is linked to OSF Multi-Specialty Group. Dmand AI links Dr. Williams to 2 more medical groups.
Does Dr. Peter Anthony Williams accept Medicare?
Yes. CMS data shows Dr. Williams billed Medicare for 5,502 services in 2024, and Dr. Williams accepts Medicare assignment.
What is Dr. Peter Anthony Williams' MIPS score?
Dr. Williams' MIPS final score for performance year 2024 is 75 out of 100, reported as part of a group.
How many Medicare patients does Dr. Peter Anthony Williams see?
CMS counts 3,255 Medicare patients who saw Dr. Williams in 2024, with an average age of 75.
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What services does Dr. Peter Anthony Williams bill to Medicare?
In 2024, Dr. Williams' most billed Medicare services were radiation oncology (77067), radiation oncology (77063) and diagnostic imaging (71046).
Where did Dr. Peter Anthony Williams go to medical school?
Dr. Williams graduated from Rush Medical College of Rush University in 1991.
How long has Dr. Peter Anthony Williams been practicing?
Dr. Williams graduated from medical school in 1991, 35 years ago.
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