Dr. John David Williams, MD
- Medicare services, 2024
- 8,399
- Medicare patients, 2024
- 418
- Part D claims, 2024
- 9,611
- MIPS score, 2024
- 22
- Hospital affiliations
- 2
- Practice address
- 608 S Hester St, Stillwater, OK 74074
- Practice phone
- Call (405) 377-8000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Associates of Medicine/John D Williams,MD
Stillwater, Oklahoma
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 David Williams is an internist in Stillwater, Oklahoma
Dr. Williams practices at Associates of Medicine/John D Williams,MD in Stillwater, Oklahoma.
Dr. Williams' NPI, 1528068426, was assigned on July 21, 2005. Dr. Williams graduated from University of Oklahoma College of Medicine in 1981. Dr. Williams holds Oklahoma license 13127.
- NPI
- 1528068426NPI Registry (opens in a new tab)
- Medicare PAC ID
- 1759444045
- NPI enumeration date
- July 21, 2005
- NPI status
- Active
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
- Practice phone
- (405) 377-8000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 71
- Medical school graduation
- 1981
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; Dmand AI Practice Data; and Doctors and Clinicians National Downloadable File (CMS)
Dr. John David Williams practices at Associates of Medicine/John D Williams,MD in Stillwater, Oklahoma
Dr. Williams' primary practice is Associates of Medicine/John D Williams,MD, at 608 S Hester St, Stillwater, OK 74074 in Payne County. The practice phone is (405) 377-8000.
- Associates of Medicine/John D Williams,MD608 S Hester St, Stillwater, OK 74074 · Payne CountyPhone(405) 377-8000
Sources: NPPES NPI Registry (CMS); and Dmand AI Practice Data
Dr. John David Williams is affiliated with 8 sites of care and 2 medical groups
Dr. Williams' primary practice is Associates of Medicine/John D Williams,MD in Stillwater, Oklahoma. Dr. Williams is also affiliated with Stillwater Medical Center. The medical group on file is Stillwater Medical Center. Dmand AI also links Dr. Williams to 1 more hospital, 3 home health agencies, 2 group practices and clinics and 1 medical group, 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 David Williams' practice
Dmand AI tracks the electronic health record (EHR) system at each site where Dr. Williams practices, 7 sites in all. Vendor and product names are available with a free account.
| Site | EHR vendor and product |
|---|---|
| Associates of Medicine/John D Williams,MD | Available with a free account |
| +7 more sites and 1 medical group | Available with a free account |
Source: Dmand AI Technology Install Data
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Dr. John David Williams is one of 1,018 internists in Oklahoma
Internal medicine is Dr. Williams' primary specialty in the NPI Registry, under taxonomy code 207R00000X. Dr. Williams is licensed in Oklahoma.
Specialties and state licenses
- Internal medicine, OklahomaPrimary
Internists near Dr. Williams
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. John David Williams billed Medicare for 8,399 services in 2024
CMS data shows 8,399 Medicare services from Dr. Williams across 35 procedure codes in 2024, for 418 Medicare patients. Medicare paid $151,254 for them.
Dr. Williams' Medicare services by type, 2023 to 2024
- 2023
- 2024
- Drugs given in the office
- 2023: 892024: 3,9384325%
- Office and hospital visits
- 2023: 1,7232024: 1,6932%
- Lab and pathology
- 2023: 1,3532024: 1,16314%
- Tests and treatments
- 2023: 6362024: 5888%
- Surgery
- 2023: 5392024: 46314%
- Other services
- 2023: 4782024: 39917%
- Imaging
- 2023: 2142024: 15528%
Where Dr. Williams' Medicare services took place, 2024
- In an office8,14797%
- In a facility2523%
Dr. Williams compared with the Oklahoma median for internists, 2024
- Dr. Williams
- Oklahoma median
- Medicare services
- 8,399vs 63613.2 times
- Medicare patients
- 418vs 24372% above
- Part D claims
- 8,715vs 28230.9 times
Medians across 969 internists in Oklahoma 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.
Need commercial claims for Dr. Williams?
Medicare shows one payer. Book a meeting to get commercial claims data for Dr. Williams and other internists in Oklahoma.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. John David Williams treated 418 Medicare patients in 2024, average age 74
CMS counts 418 Medicare patients who saw Dr. Williams in 2024. The largest group is 65 to 74, with 171 patients. 75% of them have high blood pressure, and 75% have high cholesterol. 11% are also on Medicaid. Their average risk score is 1.24, where 1.00 is the Medicare average.
Across all payers, Dmand AI patient panel data puts Dr. Williams' median patient age at 66, with 53% women.
Dr. Williams' Medicare patients by age, 2024
Dr. Williams' Medicare patients by sex, 2024
- Women22153%
- Men19747%
Chronic conditions among Dr. Williams' Medicare patients, 2024
- High blood pressure75%
- High cholesterol75%
- Arthritis61%
- Diabetes33%
- Ischemic heart disease33%
- Mood disorders25%
- Atrial fibrillation24%
- Depression23%
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 66
Patient panel by sex, all payers
- Women53%
- Men47%
Sources: Dmand AI Patient Panel Data; and Medicare Physician & Other Practitioners - by Provider (CMS), 2024 data
Dr. John David Williams wrote 9,611 Medicare Part D claims in 2024
In 2024, Dr. Williams wrote 9,611 Medicare Part D claims for 328 patients. 87% of them were for generic drugs. CMS names the drug for 8,715 of them, across 163 drugs with 11 or more claims each, at $606,828 in total drug cost. In 2023, CMS named 8,011 claims across 156 drugs.
Dr. Williams' Part D claims by kind of drug, 2024
- Generic8,316 claims87%
- Brand-name1,253 claims13%
- Other42 claims0%
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
- Opioids5%516 of 9,611 claims
- Antibiotics3%277 of 9,611 claims
- Antipsychotics, patients 65 and over0%30 of 9,611 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: 8,0112024: 8,7159%
Drugs named by CMS: 163 in 2024, 156 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 David Williams scored 22 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 22 out of 100 for Dr. Williams for performance year 2024, reported individually. Dr. Williams accepts Medicare assignment, so Medicare's approved amount is taken as full payment. CMS lists Dr. Williams as offering telehealth. CMS counts 23 procedures of removal of skin lesions by Dr. Williams, more than 66% of the clinicians it reports for that procedure.
- Accepts Medicare assignment
- Yes
- Offers telehealth
- Yes
Dr. Williams' MIPS scores, performance year 2024
- 22of 100Final score
- 0of 100Quality
- 0of 100Improvement Activities
- 73of 100Cost
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
- Removal of skin lesions
- 66th percentile23 procedures
CMS ranks each clinician against every clinician it reports for the same procedure category.
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 David Williams received $9,236 in industry payments from 2016 to 2025
CMS Open Payments shows 512 general payments to Dr. Williams from 65 drug and device companies from 2016 to 2025. Food and beverage make up the largest share, 95% of the total. Novo Nordisk Inc paid the most, $1,020.
General payments to Dr. Williams by program year, 2016 to 2025
General payments to Dr. Williams by kind, 2016 to 2025
- Food and beverage$8,74595%
- Travel and lodging$4014%
- Education$901%
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 David Williams graduated from University of Oklahoma College of Medicine
Dr. Williams graduated from University of Oklahoma College of Medicine in 1981.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. John David 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 | 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) |
| 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 David 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. John David Williams' NPI number?
Dr. John David Williams' NPI number is 1528068426. It was assigned on July 21, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. John David Williams?
Dr. John David Williams is an internist in Stillwater, Oklahoma. The primary specialty in the NPI Registry is Internal Medicine Physician (taxonomy code 207R00000X).
Where does Dr. John David Williams practice?
Dr. Williams practices at 608 S Hester St, Stillwater, OK 74074. Dr. Williams' primary practice is Associates of Medicine/John D Williams,MD in Stillwater, Oklahoma. Dmand AI also links Dr. Williams to 1 hospital, 3 home health agencies, 2 group practices and clinics and 1 medical group.
What is Dr. John David Williams' office phone number?
The practice phone on file for Dr. Williams is (405) 377-8000.
What is Dr. John David Williams' medical license number?
Dr. Williams holds Oklahoma license 13127.
Which hospitals is Dr. John David Williams affiliated with?
Dr. Williams is affiliated with Stillwater Medical Center. Dmand AI links Dr. Williams to 1 more hospital.
What medical group is Dr. John David Williams part of?
Dr. Williams is linked to Stillwater Medical Center. Dmand AI links Dr. Williams to 1 more medical group.
Does Dr. John David Williams accept Medicare?
Yes. CMS data shows Dr. Williams billed Medicare for 8,399 services in 2024, and Dr. Williams accepts Medicare assignment.
Does Dr. John David Williams offer telehealth?
Yes. The CMS Doctors and Clinicians file lists Dr. Williams as offering telehealth services.
What is Dr. John David Williams' MIPS score?
Dr. Williams' MIPS final score for performance year 2024 is 22 out of 100, reported individually.
Show 6 more questionsShow fewer questions
How many Medicare patients does Dr. John David Williams see?
CMS counts 418 Medicare patients who saw Dr. Williams in 2024, with an average age of 74.
What services does Dr. John David Williams bill to Medicare?
In 2024, Dr. Williams' most billed Medicare services were injected or infused drug (J1010), office visit, established patient (99213) and lab and pathology test (85025).
Where did Dr. John David Williams go to medical school?
Dr. Williams graduated from University of Oklahoma College of Medicine in 1981.
What drugs does Dr. John David Williams prescribe most?
In 2024 Medicare Part D data, Dr. Williams' most prescribed drugs by claims were Levothyroxine Sodium, Losartan Potassium and Amlodipine Besylate.
Has Dr. John David Williams received payments from drug or device companies?
CMS Open Payments shows $9,236 in general payments to Dr. Williams from 65 companies from 2016 to 2025. The largest total came from Novo Nordisk Inc.
How long has Dr. John David Williams been practicing?
Dr. Williams graduated from medical school in 1981, 45 years ago.
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