Dr. Robert C. Williams, DO
- Medicare services, 2022
- 16
- Part D claims, 2024
- 191
- MIPS score, 2024
- 77
- Industry payments
- $263
- Affiliated sites
- 2
- Practice address
- 1 Choctaw, Caney, OK 74533
- Practice phone
- Call (918) 567-7000
- Professional email
- Get professional email
- Personal email
- Get personal email
- Mobile number
- Get mobile number
Primary practice
Choctaw Nation Health Care
Multi-specialty group site · Caney, 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. Robert C. Williams is a family medicine physician in Caney, Oklahoma
Dr. Williams practices at Choctaw Nation Health Care in Caney, Oklahoma.
Dr. Williams' NPI, 1336137728, was assigned on October 10, 2005. Dr. Williams graduated from Oklahoma State University College of Osteopathic Medicine in 1979. Dr. Williams holds Oklahoma license 2011.
- NPI
- 1336137728NPI Registry (opens in a new tab)
- NPI enumeration date
- October 10, 2005
- NPI status
- Active
- Practice phone
- (918) 567-7000
- Professional email
- Get email
- Personal email
- Get email
- Mobile number
- Get number
- Sex
- Male
- Estimated age
- 73
- Medical school graduation
- 1979
Sources: NPPES NPI Registry (CMS); Dmand AI Professional Profile Data; and Dmand AI Affiliation Data
Dr. Robert C. Williams practices at Choctaw Nation Health Care in Caney, Oklahoma
Dr. Williams' primary practice is Choctaw Nation Health Care, at 1 Choctaw, Caney, OK 74533. The practice phone is (918) 567-7000.
- Choctaw Nation Health Care1 Choctaw, Caney, OK 74533Phone(918) 567-7000
Source: Dmand AI Affiliation Data
Dr. Robert C. Williams is affiliated with 2 sites of care and 2 medical groups
Dr. Williams' primary practice is Choctaw Nation Health Care in Caney, Oklahoma. The medical group on file is Choctaw Nation Health Care Center. Dmand AI also links Dr. Williams to 1 more group practice or clinic and 1 medical group, each named with a free account.
Source: Dmand AI Affiliation Data
Dmand AI tracks the EHR system at Dr. Robert C. Williams' 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 |
|---|---|
| Choctaw Nation Health Care | 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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Dr. Robert C. Williams is one of 1,964 family medicine physicians in Oklahoma
Family medicine is Dr. Williams' primary specialty in the NPI Registry, under taxonomy code 207Q00000X. Dmand AI has Dr. Williams' licenses on file in 2 states: Oklahoma and Arkansas.
Specialties and state licenses
- Family medicine, OklahomaPrimary
- Arkansas license
Family medicine physicians near Dr. Williams
Counts of family medicine physicians 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. Robert C. Williams billed Medicare for 16 services in 2022
CMS data shows 16 Medicare services from Dr. Williams across 1 procedure code in 2022, all of them office visits. Medicare paid $368 for them. Every service was in an office.
Dr. Williams' Medicare services by type, 2021 to 2022
- 2021
- 2022
- Office and hospital visits
- 2021: 2762022: 1694%
Dr. Williams compared with the Oklahoma median for family medicine physicians, 2022
- Dr. Williams
- Oklahoma median
- Medicare services
- 16vs 49597% below
- Part D claims
- 23vs 1,19798% below
Medians across 1,938 family medicine physicians in Oklahoma with Dmand AI profiles that report each measure.
Dr. Williams' most billed Medicare procedure codes, 2022
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 family medicine physicians in Oklahoma.
Sources: Medicare Physician & Other Practitioners - by Provider and Service (CMS), 2024 data; and Dmand AI Peer Benchmarks
Dr. Robert C. Williams' patients have a median age of 68
Across all payers, Dmand AI patient panel data puts Dr. Williams' median patient age at 68, with 41% 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 68
Patient panel by sex, all payers
- Women41%
- Men59%
Source: Dmand AI Patient Panel Data
Dr. Robert C. Williams wrote 191 Medicare Part D claims in 2024
In 2024, Dr. Williams wrote 191 Medicare Part D claims for 24 patients. 82% of them were for generic drugs. CMS names the drug for 23 of them, across 2 drugs with 11 or more claims each, at $130 in total drug cost. In 2022, CMS named 1,079 claims across 44 drugs.
Dr. Williams' Part D claims by kind of drug, 2024
- Generic156 claims82%
- Brand-name and other35 claims18%
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.
Part D claims for drugs CMS names, 2022 to 2024
- 2022
- 2024
- Claims for drugs CMS names
- 2022: 1,0792024: 2398%
Drugs named by CMS: 2 in 2024, 44 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. Robert C. Williams scored 77 out of 100 in Medicare's MIPS program for 2024
CMS publishes a Merit-based Incentive Payment System (MIPS) score of 77 out of 100 for Dr. Williams for performance year 2024, reported as part of a group.
Dr. Williams' MIPS scores, performance year 2024
- 77of 100Final score
- 73.1of 100Quality
- 40of 100Improvement Activities
- 70of 100Cost
Each score is out of 100. The final score weighs the categories CMS scored for this clinician.
Source: Clinician Public Reporting: Overall MIPS Performance (CMS), 2024 data, released September 10, 2026
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Dr. Robert C. Williams received $263 in industry payments from 2016 to 2021
CMS Open Payments shows 15 general payments to Dr. Williams from 6 drug and device companies from 2016 to 2021. Food and beverage make up the largest share, 100% of the total. Sanofi and Genzyme US Companies paid the most, $76.
General payments to Dr. Williams by program year, 2016 to 2021
Companies that paid Dr. Williams the most, 2016 to 2021
Share is of all general payments to this clinician.
Source: Open Payments (CMS), 2025 data, released July 7, 2026
Dr. Robert C. Williams graduated from Oklahoma State University College of Osteopathic Medicine
Dr. Williams graduated from Oklahoma State University College of Osteopathic Medicine in 1979.
- Medical school
Source: Dmand AI Professional Profile Data
Sources for Dr. Robert C. 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 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 | 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. Robert C. 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. Robert C. Williams' NPI number?
Dr. Robert C. Williams' NPI number is 1336137728. It was assigned on October 10, 2005, and it is active in the NPI Registry.
What kind of doctor is Dr. Robert C. Williams?
Dr. Robert C. Williams is a family medicine physician in Caney, Oklahoma. The primary specialty in the NPI Registry is Family Medicine Physician (taxonomy code 207Q00000X).
Where does Dr. Robert C. Williams practice?
Dr. Williams practices at 1 Choctaw, Caney, OK 74533. Dr. Williams' primary practice is Choctaw Nation Health Care in Caney, Oklahoma. Dmand AI also links Dr. Williams to 1 group practice or clinic and 1 medical group.
What is Dr. Robert C. Williams' office phone number?
The practice phone on file for Dr. Williams is (918) 567-7000.
What is Dr. Robert C. Williams' medical license number?
Dr. Williams holds Oklahoma license 2011, one of the licenses on file in 2 states.
Which states has Dr. Robert C. Williams been licensed in?
Dmand AI has state licenses on file for Dr. Williams in Oklahoma and Arkansas.
What medical group is Dr. Robert C. Williams part of?
Dr. Williams is linked to Choctaw Nation Health Care Center. Dmand AI links Dr. Williams to 1 more medical group.
Does Dr. Robert C. Williams accept Medicare?
Yes. CMS data shows Dr. Williams billed Medicare for 16 services in 2022.
What is Dr. Robert C. Williams' MIPS score?
Dr. Williams' MIPS final score for performance year 2024 is 77 out of 100, reported as part of a group.
What services does Dr. Robert C. Williams bill to Medicare?
In 2022, Dr. Williams' most billed Medicare services were office visit, established patient (99213).
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Where did Dr. Robert C. Williams go to medical school?
Dr. Williams graduated from Oklahoma State University College of Osteopathic Medicine in 1979.
What drugs does Dr. Robert C. Williams prescribe most?
In 2024 Medicare Part D data, Dr. Williams' most prescribed drugs by claims were Lisinopril and Metformin HCl ER.
Has Dr. Robert C. Williams received payments from drug or device companies?
CMS Open Payments shows $263 in general payments to Dr. Williams from 6 companies from 2016 to 2021. The largest total came from Sanofi and Genzyme US Companies.
How long has Dr. Robert C. Williams been practicing?
Dr. Williams graduated from medical school in 1979, 47 years ago.
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