Physician Profile
Unclaimed ProfileAbout WILLIAMS
David Collier Williams, M.D. practices nephrology in Norman, OK. David is a 2001 graduate of Des Moines University of Osteopathic Medicine and Health Sciences. According to Medicare claims data, David cared for 782 Medicare patients across 1,719 services.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
Education & Training
Areas of Expertise
Licensing & Certification
Source: NPPES NPI Registry
Contact Information
- (405) 217-8500
- Email not available
Practice Locations
1553 N PORTER AVE
Norman, OK 73071
Procedures Most Often Billed to Medicare
1,719 services · 782 patients · 12 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Insertion of needle into vein for collection of blood sample | Procedure | 36415 |
29 |
| Dialysis services, 1 physician visit per month (20 years or older) | Treatment | 90962 |
225 |
| Dialysis services, 2-3 physician visits per month (20 years or older) | Treatment | 90961 |
149 |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
550 |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
454 |
| Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | Office visit | 99231 |
95 |
| Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes | Office visit | 99222 |
60 |
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
46 |
| Urinalysis, manual test | Lab test | 81002 |
41 |
| New patient office or other outpatient visit with moderate level of medical decision making, if using time, 45 minutes or more | Office visit | 99204 |
29 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other nephrology specialists at this location 4
Same specialty, same street address — most likely the same department or group.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
Trained at Des Moines University of Osteopathic Medicine and Health Sciences 8
Other providers in the same specialty who trained at the same institution.
More connections — 16 related providers in 2 groups
Class of 2001 at Des Moines University of Osteopathic Medicine and Health Sciences 8
Providers who graduated from the same medical school in the same year.
Also performs Insertion of needle into vein for collection of blood sample 8
Providers in OK who bill this service to Medicare most often.
Common questions
What does Dr. Williams specialize in?
Dr. Williams is a nephrology in Norman, OK. This is the primary taxonomy recorded against the NPI in the federal registry, listed there as “NEPHROLOGY”.
NPI registry
Where is Dr. Williams located?
Dr. Williams is listed at 1553 N PORTER AVE, Norman, OK 73071. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Dr. Williams's phone number?
The number on file is (405) 217-8500. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is Dr. Williams's NPI number?
Dr. Williams's National Provider Identifier is 1518991264. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did Dr. Williams go to medical school?
Dr. Williams attended Des Moines University of Osteopathic Medicine and Health Sciences, graduating in 2001. This comes from the CMS National Downloadable File.
CMS public data
How long has Dr. Williams been practicing?
Dr. Williams has 25 years experience. Calculated from a graduation year of 2001, reported in the CMS National Downloadable File.
CMS public data
What does Dr. Williams do most often?
According to Medicare billing data, Dr. Williams performs procedures including insertion of needle into vein for collection of blood sample; provides treatments such as dialysis services, 1 physician visit per month and dialysis services, 2-3 physician visits per month, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Has Dr. Williams confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Dr. Williams. If this is you, claiming it is free.
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Claim this profileProvider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.