Dr. John R. Williams Jr., MD
- Medicare services, 2021
- 129
- Part D claims, 2024
- 86
- MIPS score, 2024
- 91
- Hospital affiliations
- 1
- Industry payments
- $80
- Practice address
- 5383 State Route 154, Pinckneyville, IL 62274
- Practice phone
- Call (618) 357-2187
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
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. John R. Williams Jr. is a general surgeon in Pinckneyville, Illinois
Dr. Williams practices at Pinckneyville Community Hospital in Pinckneyville, Illinois, part of Pinckneyville Community Hospital.
Dr. Williams' NPI, 1134217169, was assigned on October 11, 2006. Dr. Williams graduated from JS Weill Medical College, Cornell University in 1989. Dr. Williams holds Illinois license 036116781.
- NPI
- 1134217169NPI Registry (opens in a new tab)
- Medicare PAC ID
- 2668449620
- NPI enumeration date
- October 11, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (618) 357-2187
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 63
- Medical school graduation
- 1989
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Affiliation Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John R. Williams Jr. practices at Pinckneyville Community Hospital in Pinckneyville, Illinois
Dr. Williams' primary practice is Pinckneyville Community Hospital, at 5383 State Route 154, Pinckneyville, IL 62274 in Perry County. The practice phone is (618) 357-2187.
- Pinckneyville Community Hospital5383 State Route 154, Pinckneyville, IL 62274 · Perry CountyPhone(618) 357-2187
Source: Dmand AI Affiliation Data
Dr. John R. Williams Jr. is affiliated with 2 sites of care and 2 medical groups
Dr. Williams' primary practice is Pinckneyville Community Hospital in Pinckneyville, Illinois, part of Pinckneyville Community Hospital. The medical group on file is Pinckneyville Community Hospital. Dmand AI also links Dr. Williams to 1 more group practice or clinic and 1 medical group, each named with a free account. Dr. Williams' employer is on file too: a hospital.
Sources: Dmand AI Affiliation Data; and Dmand AI Org Hierarchy Data
Dmand AI tracks the EHR system at Dr. John R. Williams Jr.'s practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Williams practices, 2 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Pinckneyville Community Hospital | Available with a free account |
| +1 more site and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dmand AI maps EHR vendors, IT decision makers and buying committees across Pinckneyville Community Hospital and 6.2K+ hospitals, with verified contacts in the same login.
Dr. John R. Williams Jr. is one of 1,217 general surgeons in Illinois
Surgery is Dr. Williams' primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Williams is licensed in Illinois.
Specialties and state licenses
- Surgery, IllinoisPrimary
General surgeons near Dr. Williams
Counts of general surgeons 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. John R. Williams Jr. billed Medicare for 129 services in 2021
CMS data shows 129 Medicare services from Dr. Williams across 3 procedure codes in 2021. Medicare paid $16,230 for them. Every service was in a facility, such as a hospital, rather than an office.
Dr. Williams' Medicare services by type, 2020 to 2021
- 2020
- 2021
- Office and hospital visits
- 2020: 2102021: 12939%
Dr. Williams compared with the Illinois median for general surgeons, 2021
- Dr. Williams
- Illinois median
- Medicare services
- 129vs 19434% below
- Part D claims
- 13vs 2854% below
Medians across 1,031 general surgeons in Illinois with Dmand AI profiles that report each measure.
Dr. Williams' most billed Medicare procedure codes, 2021
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. John R. Williams Jr.'s patients have a median age of 74
Across all payers, Dmand AI patient panel data puts Dr. Williams' median patient age at 74, with 60% women.
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 74
Patient panel by sex, all payers
- Women60%
- Men40%
Source: Dmand AI Patient Panel Data
Dr. John R. Williams Jr. wrote 86 Medicare Part D claims in 2024
In 2024, Dr. Williams wrote 86 Medicare Part D claims for 65 patients. 94% of them were for generic drugs. CMS names the drug for 13 of them, across 1 drug with 11 or more claims each, at $109 in total drug cost. In 2022, CMS named 12 claims across 1 drug.
Dr. Williams' Part D claims by kind of drug, 2024
- Generic81 claims94%
- Brand-name and other5 claims6%
Dr. Williams' 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. Williams' Part D claims, 2024
- Antibiotics34%29 of 86 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, 2022 to 2024
- 2022
- 2024
- Claims for drugs CMS names
- 2022: 122024: 138%
Drugs named by CMS: 1 in 2024, 1 in 2022.
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. John R. Williams Jr. 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. Williams for performance year 2024, reported through an alternative payment model (APM). 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
- 91of 100Final score
- 72.1of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
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. John R. Williams Jr. received $80 in industry payments from 2021 to 2024
CMS Open Payments shows 4 general payments to Dr. Williams from 3 drug and device companies from 2021 to 2024. Food and beverage make up the largest share, 100% of the total. Abbvie Inc. paid the most, $46.
General payments to Dr. Williams by program year, 2021 to 2024
Companies that paid Dr. Williams the most, 2021 to 2024
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John R. Williams Jr. graduated from JS Weill Medical College, Cornell University
Dr. Williams graduated from JS Weill Medical College, Cornell University in 1989.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John R. Williams Jr.'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 Data |
| 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. John R. Williams Jr.
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. John R. Williams Jr.'s NPI number?
Dr. John R. Williams Jr.'s NPI number is 1134217169. It was assigned on October 11, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John R. Williams Jr.?
Dr. John R. Williams Jr. is a general surgeon in Pinckneyville, Illinois. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. John R. Williams Jr. practice?
Dr. Williams practices at 5383 State Route 154, Pinckneyville, IL 62274. Dr. Williams' primary practice is Pinckneyville Community Hospital in Pinckneyville, Illinois, part of Pinckneyville Community Hospital. Dmand AI also links Dr. Williams to 1 group practice or clinic and 1 medical group.
What is Dr. John R. Williams Jr.'s office phone number?
The practice phone on file for Dr. Williams is (618) 357-2187.
What is Dr. John R. Williams Jr.'s medical license number?
Dr. Williams holds Illinois license 036116781.
Which hospitals is Dr. John R. Williams Jr. affiliated with?
Dr. Williams practices at Pinckneyville Community Hospital in Pinckneyville, Illinois.
What medical group is Dr. John R. Williams Jr. part of?
Dr. Williams is linked to Pinckneyville Community Hospital. Dmand AI links Dr. Williams to 1 more medical group.
Does Dr. John R. Williams Jr. accept Medicare?
Yes. CMS data shows Dr. Williams billed Medicare for 129 services in 2021, and Dr. Williams accepts Medicare assignment.
What is Dr. John R. Williams Jr.'s MIPS score?
Dr. Williams' MIPS final score for performance year 2024 is 91 out of 100, reported through an alternative payment model (APM).
What services does Dr. John R. Williams Jr. bill to Medicare?
In 2021, Dr. Williams' most billed Medicare services were emergency department visit (99285), emergency department visit (99283) and emergency department visit (99284).
Show 4 more questionsShow fewer questions
Where did Dr. John R. Williams Jr. go to medical school?
Dr. Williams graduated from JS Weill Medical College, Cornell University in 1989.
What drugs does Dr. John R. Williams Jr. prescribe most?
In 2024 Medicare Part D data, Dr. Williams' most prescribed drugs by claims were Ondansetron ODT.
Has Dr. John R. Williams Jr. received payments from drug or device companies?
CMS Open Payments shows $80 in general payments to Dr. Williams from 3 companies from 2021 to 2024. The largest total came from Abbvie Inc.
How long has Dr. John R. Williams Jr. been practicing?
Dr. Williams graduated from medical school in 1989, 37 years ago.
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