Dr. John Thomas Williams IV, MD
- Medicare services, 2024
- 189
- Medicare patients, 2024
- 121
- Part D claims, 2024
- 104
- Publications
- 1
- MIPS score, 2024
- 92
- Practice address
- 380 Hospital Dr, Macon, GA 31217
- Practice phone
- Call (770) 801-2500
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Piedmont Physicians of Mountainside
Macon, Georgia
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 Thomas Williams IV is a general surgeon in Macon, Georgia
Dr. Williams practices at Piedmont Physicians of Mountainside in Macon, Georgia.
Dr. Williams' NPI, 1437184306, was assigned on July 11, 2006. Dr. Williams graduated from Medical College of Georgia School of Medicine in 1993. Dr. Williams holds Georgia license 39514.
- NPI
- 1437184306NPI Registry (opens in a new tab)
- Medicare PAC ID
- 6608842323
- NPI enumeration date
- July 11, 2006
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Practice phone
- (770) 801-2500
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 59
- Medical school graduation
- 1993
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John Thomas Williams IV practices at Piedmont Physicians of Mountainside in Macon, Georgia
Dr. Williams' primary practice is Piedmont Physicians of Mountainside, at 380 Hospital Dr, Macon, GA 31217 in Bibb County. The practice phone is (770) 801-2500.
- Piedmont Physicians of Mountainside380 Hospital Dr, Macon, GA 31217 · Bibb CountyPhone(770) 801-2500
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. John Thomas Williams IV is affiliated with 4 sites of care and 1 medical group
Dr. Williams' primary practice is Piedmont Physicians of Mountainside in Macon, Georgia. Dr. Williams is also affiliated with Piedmont Macon Medical Center. The medical group on file is Piedmont Physicians Obstetrics and Gynecology of Jasper. Dmand AI also links Dr. Williams to 1 more hospital and 1 group practice or clinic, each named with a free account.
Sources: NPPES NPI Registry (CMS); Dmand AI Practice Data; and Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. John Thomas Williams IV's practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Williams practices, 3 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Piedmont Physicians of Mountainside | Available with a free account |
| +3 more affiliated sites | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John Thomas Williams IV is one of 853 general surgeons in Georgia
Surgery is Dr. Williams' primary specialty in the NPI Registry, under taxonomy code 208600000X. Dr. Williams is licensed in Georgia.
Specialties and state licenses
- Surgery, GeorgiaPrimary
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 Thomas Williams IV billed Medicare for 189 services in 2024
CMS data shows 189 Medicare services from Dr. Williams across 8 procedure codes in 2024, for 121 Medicare patients. Medicare paid $20,530 for them.
Dr. Williams' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Office and hospital visits
- 2023: 1562024: 17210%
- Surgery
- 2023: 332024: 1748%
Where Dr. Williams' Medicare services took place, 2024
- In an office14878%
- In a facility4122%
Dr. Williams compared with the Georgia median for general surgeons, 2024
- Dr. Williams
- Georgia median
- Medicare services
- 189vs 15026% above
- Medicare patients
- 121vs 10911% above
- Part D claims
- 84vs 5456% above
Medians across 789 general surgeons in Georgia 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 general surgeons in Georgia.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John Thomas Williams IV treated 121 Medicare patients in 2024, average age 73
CMS counts 121 Medicare patients who saw Dr. Williams in 2024. The largest group is 65 to 74, with 61 patients. 75% of them have high blood pressure, and 74% have high cholesterol. 16% are also on Medicaid. Their average risk score is 1.52, 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 64, with 62% 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
- Women6554%
- Men5646%
Chronic conditions among Dr. Williams' Medicare patients, 2024
- High blood pressure75%
- High cholesterol74%
- Arthritis47%
- Diabetes41%
- Chronic kidney disease36%
- Ischemic heart disease34%
- Anxiety29%
- Mood disorders26%
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 64
Patient panel by sex, all payers
- Women62%
- Men38%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John Thomas Williams IV wrote 104 Medicare Part D claims in 2024
In 2024, Dr. Williams wrote 104 Medicare Part D claims for 76 patients. 99% of them were for generic drugs. CMS names the drug for 84 of them, across 2 drugs with 11 or more claims each, at $428 in total drug cost. In 2023, CMS named 33 claims across 2 drugs.
Dr. Williams' Part D claims by kind of drug, 2024
- Generic103 claims99%
- Brand-name and other1 claims1%
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
- Opioids71%74 of 104 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: 332024: 84155%
Drugs named by CMS: 2 in 2024, 2 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. John Thomas Williams IV scored 92 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 92 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. CMS counts 21 procedures of upper gastrointestinal (gi) endoscopy for acid reflux by Dr. Williams, more than 51% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
Dr. Williams' MIPS scores, performance year 2024
- 92of 100Final score
- 83.2of 100Quality
- 100of 100Promoting Interoperability
- 40of 100Improvement Activities
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Where Dr. Williams ranks in Medicare procedure volume
- Upper gastrointestinal (GI) endoscopy for acid reflux
- 51st percentile21 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
Colonoscopy: 1 to 10 procedures (CMS shows small counts as a range)
Hernia repair (minimally invasive): 1 to 10 procedures (CMS shows small counts as a range)
Hernia repair - groin (open): 1 to 10 procedures (CMS shows small counts as a range)
Removal of skin lesions: 1 to 10 procedures (CMS shows small counts as a range)
Removal or shaving of skin growth: 1 to 10 procedures (CMS shows small counts as a range)
Skin biopsy: 1 to 10 procedures (CMS shows small counts as a range)
Sources: Doctors and Clinicians National Downloadable File (CMS); Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026; and Doctors and Clinicians Utilization Data (CMS)
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Dr. John Thomas Williams IV has 1 publication on record
Dmand AI links 1 paper to Dr. Williams in 2025.
Recent publications by Dr. Williams
See who Dr. Williams researches with
Physician Network Discovery turns co-authorship, shared hospitals and shared groups into a map of who Dr. Williams works with, so you can find a warm path to the right general surgeons.
Sources: PubMed (National Library of Medicine); and Dmand AI Research Linkage
Dr. John Thomas Williams IV received $55,495 in industry payments from 2016 to 2025
CMS Open Payments shows 344 general payments to Dr. Williams from 53 drug and device companies from 2016 to 2025. Education make up the largest share, 51% of the total. Intuitive Surgical, Inc. paid the most, $33,141.
General payments to Dr. Williams by program year, 2016 to 2025
General payments to Dr. Williams by kind, 2016 to 2025
- Education$28,03551%
- Food and beverage$11,87921%
- Honoraria$8,58015%
- Travel and lodging$5,50210%
- Speaker and faculty fees$1,5003%
Companies that paid Dr. Williams the most, 2016 to 2025
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. John Thomas Williams IV graduated from Medical College of Georgia School of Medicine
Dr. Williams graduated from Medical College of Georgia School of Medicine in 1993.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John Thomas Williams IV'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 | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice Data |
| Primary practice, affiliations and health system | NPPES NPI Registry (CMS) (opens in a new tab)Dmand AI Practice DataDmand AI Affiliation 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)Doctors and Clinicians Utilization Data (CMS) (opens in a new tab) |
| Publications, topics and co-authors | PubMed (National Library of Medicine) (opens in a new tab)Dmand AI Research Linkage |
| 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 Thomas Williams IV
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 Thomas Williams IV's NPI number?
Dr. John Thomas Williams IV's NPI number is 1437184306. It was assigned on July 11, 2006, and it is active in the NPI Registry.
What kind of doctor is Dr. John Thomas Williams IV?
Dr. John Thomas Williams IV is a general surgeon in Macon, Georgia. The primary specialty in the NPI Registry is Surgery Physician (taxonomy code 208600000X).
Where does Dr. John Thomas Williams IV practice?
Dr. Williams practices at 380 Hospital Dr, Macon, GA 31217. Dr. Williams' primary practice is Piedmont Physicians of Mountainside in Macon, Georgia. Dmand AI also links Dr. Williams to 1 hospital and 1 group practice or clinic.
What is Dr. John Thomas Williams IV's office phone number?
The practice phone on file for Dr. Williams is (770) 801-2500.
What is Dr. John Thomas Williams IV's medical license number?
Dr. Williams holds Georgia license 39514.
Which hospitals is Dr. John Thomas Williams IV affiliated with?
Dr. Williams is affiliated with Piedmont Macon Medical Center. Dmand AI links Dr. Williams to 1 more hospital.
What medical group is Dr. John Thomas Williams IV part of?
Dr. Williams is linked to Piedmont Physicians Obstetrics and Gynecology of Jasper.
Does Dr. John Thomas Williams IV accept Medicare?
Yes. CMS data shows Dr. Williams billed Medicare for 189 services in 2024, and Dr. Williams accepts Medicare assignment.
What is Dr. John Thomas Williams IV's MIPS score?
Dr. Williams' MIPS final score for performance year 2024 is 92 out of 100, reported through an alternative payment model (APM).
How many Medicare patients does Dr. John Thomas Williams IV see?
CMS counts 121 Medicare patients who saw Dr. Williams in 2024, with an average age of 73.
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What services does Dr. John Thomas Williams IV bill to Medicare?
In 2024, Dr. Williams' most billed Medicare services were office visit, established patient (99214), office visit, established patient (99213) and office visit, new patient (99204).
Where did Dr. John Thomas Williams IV go to medical school?
Dr. Williams graduated from Medical College of Georgia School of Medicine in 1993.
What drugs does Dr. John Thomas Williams IV prescribe most?
In 2024 Medicare Part D data, Dr. Williams' most prescribed drugs by claims were Oxycodone-Acetaminophen and Ondansetron HCl.
Has Dr. John Thomas Williams IV received payments from drug or device companies?
CMS Open Payments shows $55,495 in general payments to Dr. Williams from 53 companies from 2016 to 2025. The largest total came from Intuitive Surgical, Inc.
How long has Dr. John Thomas Williams IV been practicing?
Dr. Williams graduated from medical school in 1993, 33 years ago.
Does Dr. John Thomas Williams IV do research?
Dmand AI links 1 publication to Dr. Williams.
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