Quick answers
- Which hospitals does David C. Williams work at?
- Medicare's official clinician data lists David C. Williams at 5 hospitals: Harmon Memorial Hospital, Lindsay Municipal Hospital, Mercy Hospital Ada, Norman Regional and Purcell Municipal Hospital. This is where the clinician works or has privileges; call the hospital to confirm.
- Where does David C. Williams see patients?
- Medicare's clinician data lists 1 practice location in Norman, OK. Call before your visit to confirm the address.
- What is David C. Williams's specialty?
- Medicare lists Nephrology as the primary specialty, and also Internal Medicine.
- Does David C. Williams accept Medicare assignment?
- Yes. Medicare's clinician data says David C. Williams accepts Medicare assignment (the Medicare-approved amount as full payment for covered services), as of 2026-10-02. Ask the office to confirm before your visit.
- What is the phone number for David C. Williams?
- (405) 515-0500, as listed in official Medicare / NPI Registry data.
- What is David C. Williams's NPI number?
- 1518991264. The NPI (National Provider Identifier) is the clinician's permanent federal ID; you can look it up in the official NPI Registry.
Hospitals where David C. Williams works
Medicare's Facility Affiliation Data lists David C. Williams at these hospitals (updated 2026-10-02). Each hospital page shows its address, phone, emergency services, Medicare rating and all its clinicians.
- Harmon Memorial HospitalHollis, OK · Critical Access Hospital · CCN 371338
- Lindsay Municipal HospitalLindsay, OK · Acute Care Hospital · CCN 370214
- Mercy Hospital AdaAda, OK · Acute Care Hospital · CCN 370020
- Norman RegionalNorman, OK · Acute Care Hospital · CCN 370008
- Purcell Municipal HospitalPurcell, OK · Acute Care Hospital · CCN 370158
Practice locations
Addresses where David C. Williams is enrolled with Medicare (CMS data updated 2026-10-02).
- 1553 N Porter Ave, Nephrology AssocNorman, OK 73071 (405) 515‑0500
Group practices
Medicare enrollment lists David C. Williams as a member of this group (CMS data updated 2026-10-02).
- Norman Regional Providers Specialty Care142 clinicians in the group
Specialties
- Nephrologyprimary
- Internal Medicinealso
Other nephrologists in Norman
Clinicians with the same Medicare primary specialty in Norman, OK — not a recommendation.
Clinician information
| Credential | MD |
|---|---|
| Medical school | Des Moines University Of Osteopathic Medicine And Health Sciences |
| Graduation year | 2001 |
| Gender (as listed) | Male |
| Medicare assignment | Accepts (Medicare-approved amount as full payment) |
| NPI (National Provider Identifier) | 1518991264 |
| Corrections | Report an error or suggest an update → |
Most corrections must be made at the source: clinicians update their NPI Registry record (NPPES) and their Medicare enrollment (PECOS); this page follows the next data release.
Sources
- Facility Affiliation Data — Centers for Medicare & Medicaid Services (CMS), data updated 2026-10-02, retrieved 2026-10-29
- National Downloadable File (Doctors and Clinicians) — CMS, data updated 2026-10-02, retrieved 2026-10-29
- NPI Registry — U.S. Department of Health and Human Services (NPPES), the clinician’s official record
- Medicare Care Compare — official Medicare tool to look up clinicians