David Collier Williams, M.D.
Nephrology Physician · Norman, OK
David Collier Williams, M.D. is a nephrology physician with a practice address in Norman, Oklahoma, and NPI 1518991264, issued on Jul 10, 2006. Check the license (Oklahoma 22399, as entered in NPPES) on the Oklahoma Board of Medical Licensure and Supervision; the Medicare figures below come from public CMS files.
- Name
- David Collier Williams
- Credential
- M.D.
- Primary taxonomy
- Nephrology Physician 207RN0300X
- License number
- 22399 OK
Self-reported in NPPES; status is on the state search - Practice location
- 1553 N Porter Ave, Norman, OK 73071
- Phone
- (405) 217-8500
- Enumerated
- Jul 10, 2006
- Record last updated
- Jul 8, 2007 (not updated in 19 years: call before relying on the address or phone)
- Fax
- (405) 217-8501
- Medicare enrollment
- Enrolled (PECOS I20060816000059); accepts Medicare assignment
- Medical or professional school
- Des Moines University Of Osteopathic Medicine And Health Sciences, 2001
- Entity
- Type 1 · individual
8 nearest nephrology physician records → All 112 in Oklahoma → Look up another NPI →
Also registered at 1553 N Porter Ave
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Kendral Knight, M.D.Nephrology Physician1275783250
- Oswald Llanderosos, M.D.Nephrology Physician1679554737
- Cuong Nguyen, MDNephrology Physician1659497451
- Delia Sarale, M.D.Clinical Genetics (M.D.) Physician1902016132
- Dustin Tedesco, MDInternal Medicine Physician1649476136
Verify David Collier Williams in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersOklahoma Board of Medical Licensure and Supervision
Search for license 22399Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
14% fewer Medicare Part D claims than the average nephrology physician in 2024
1,253 Medicare Part D claims for 204 beneficiaries, against an average of 1,465 among the 10,986 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Amlodipine Besylate86 claims
- Torsemide73 claims
- Farxiga51 claims
- Lisinopril46 claims
- Pantoprazole Sodium44 claims
- Carvedilol41 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
The MIPS final score for 2023 (Medicare payment program): 91.2 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $774.06
38 payments; by number, the most common kind was food and beverage; the largest payer was AstraZeneca Pharmaceuticals LP. The 8,230 providers of this specialty with any payment received $3,091.37 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
Bills Medicare through one group practice
- Norman Regional Providers Specialty CareNorman, OK
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David Collier Williams among 112 nephrology physician records in Oklahoma
David Collier Williams, M.D. is one of 112 nephrology physician records with a practice address in Oklahoma. 86% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 13% of them.
- NPI issued2006 · 13% of these records are older, 51% newer
- In a Medicare fileYes · 86% of these records are
- In the CMS Doctors and Clinicians fileYes · 79% of these records are
- Graduated2001 · median 2003 among the 87 with a school on file
- Record last updated2007 · 53% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RN0300X and a Oklahoma practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Nephrology Physician providers in Oklahoma
There are 112 nephrology physician records in Oklahoma.
All 112 in Oklahoma → Every provider in Norman → Nephrology Physician nationwide →
The 8 nephrology physician records with the nearest ZIP codes
- Kendral Knight, M.D.Norman, OK 730711275783250
- Oswald Llanderosos, M.D.Norman, OK 730711679554737
- Cuong Nguyen, MDNorman, OK 730711659497451
- Pankaj Baluja, MDOklahoma City, OK 731021063480309
- Usman Bhutta, MDOklahoma City, OK 731021588896997
- Joe Ghata, MDOklahoma City, OK 731021215258017
- Usman Khan, M.DOklahoma City, OK 731021104379239
- Rajesh Kumar, MDOklahoma City, OK 731021134272933
Common questions
What is David Collier Williams, M.D.'s NPI number?
David Collier Williams, M.D.'s National Provider Identifier (NPI) is 1518991264, issued on Jul 10, 2006. An NPI identifies a provider in billing; it is not a license.
Where is David Collier Williams, M.D. located?
The NPPES record lists a practice address at 1553 N Porter Ave, Norman, OK, 73071. Phone: (405) 217-8500. Providers update this record themselves, so call before visiting.
How can I verify David Collier Williams, M.D.'s license?
NPPES lists Oklahoma license number 22399, as entered by the provider. Search the Oklahoma Board of Medical Licensure and Supervision at https://www.okmedicalboard.org/. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does David Collier Williams, M.D. prescribe under Medicare Part D?
In 2024, David Collier Williams, M.D. had 1,253 Medicare Part D claims for 204 beneficiaries; the average among nephrology physician prescribers was 1,465. Part D covers Medicare prescriptions only.
What is David Collier Williams, M.D.'s MIPS final score?
The 2023 MIPS final score is 91.2 of 100. The average among 454,083 clinicians with a measured score was 83.5.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.