DAVID COLLIER WILLIAMS M.D.
NPI 1518991264
Internal Medicine - Nephrology in Norman, OK

Active since July 10, 2006PECOS EnrolledAccepts Medicare Assignment
91.18/100
CMS Quality Rating
1553 N PORTER AVE, NORMAN, OK 73071(405) 217-8500(405) 217-8501 Get Directions Write a Review

NPPES record last updated: July 8, 2007. Verified against the NPPES registry weekly; last sync: August 16, 2026.

About David Collier Williams M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DAVID COLLIER WILLIAMS M.D. (NPI 1518991264) is an individual nephrology provider in Norman, Oklahoma, licensed in Oklahoma (22399) and active in the NPI registry since July 2006. He is enrolled in Medicare PECOS, is affiliated with Norman Regional, and is a graduate of Des Moines University Of Osteopathic Medicine And Health Sciences (2001).

NPPES Registry Identity

NPI1518991264
Entity TypeIndividualMale
Primary Taxonomy207RN0300X
Provider Legal NameDAVID COLLIER WILLIAMSCredential: M.D.
Location Address1553 N PORTER AVENorman, OK 73071-6621
Mailing Address1553 N Porter AveNorman, OK 73071-6621 · (405) 217-8500 · Fax (405) 217-8501
Fax(405) 217-8501
Sole ProprietorYes
Medical School CMSDes Moines University Of Osteopathic Medicine And Health SciencesGraduated 2001
Enumeration DateJuly 10, 2006
Last NPPES UpdateJuly 8, 2007
NPI 1518991264 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

Primary SpecialtyInternal Medicine · NephrologyAllopathic & Osteopathic Physicians
Taxonomy Code207RN0300X
License Licensed in OK · 22399
Definition
An internist who treats disorders of the kidney, high blood pressure, fluid and mineral balance and dialysis of body wastes when the kidneys do not function. This specialist consults with surgeons about kidney transplantation.
1553 N PORTER AVE, Norman, OK 73071

Accepted Insurance

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

David Collier Williams M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID9537162466
PECOS Enrollment IDI20060816000059
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 12

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
550 services309 patients
Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes 99232
Follow-up hospital inpatient care involves daily check-ups while you're admitted in the hospital. Typically, a healthcare provider spends about 25 minutes each day reviewing your condition, adjusting treatment if needed, and answering any questions you might have.
454 services123 patients
Dialysis services, 1 physician visit per month (20 years or older) 90962
Dialysis is a treatment that filters and purifies your blood using a machine. It helps keep your fluids and electrolytes in balance when the kidneys can’t do their job. A physician visit once a month ensures your treatment is working effectively and adjusts it if necessary. This service is available for individuals aged 20 years and older.
225 services41 patients
Dialysis services, 2-3 physician visits per month (20 years or older) 90961
Dialysis is a treatment that performs the function of healthy kidneys if they're not working properly. It removes waste and excess fluid from your blood. 2-3 physician visits per month are recommended for monitoring your health and adjusting your treatment as needed. This service is available for those aged 20 years and older.
149 services29 patients
Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes 99231
Follow-up hospital inpatient care is a daily service where a healthcare professional checks on your health progress during your hospital stay. Each session typically lasts 15 minutes, involving updates on your condition and adjustments to your treatment plan, if necessary.
95 services48 patients
Initial hospital care with straightforward or low-level medical decision making, if using time, at least 55 minutes 99222
Initial hospital inpatient care is a service where a healthcare provider spends about 50 minutes per day overseeing your care while you're admitted in the hospital. This includes reviewing your health status, planning your treatment, and ensuring your safety and comfort.
60 services57 patients

Hospital Affiliations CMS Care Compare 4

Hospitals where this provider delivers care, identified from recent Medicare claims and place-of-service records.

Norman Regional

Acute Care Hospitals · Norman, OK
3/5 CMS rating
OwnershipGovernment - Hospital District or Authority
CMS Certification Number370008
Location3300 Healthplex PkwyNorman, OK 73072 · Cleveland County
Emergency services Birthing friendly

Mercy Hospital Ada

Acute Care Hospitals · Ada, OK
5/5 CMS rating
OwnershipVoluntary non-profit - Private
CMS Certification Number370020
Location430 North Monte VistaAda, OK 74820 · Pontotoc County
Emergency services Birthing friendly

Lindsay Municipal Hospital

Acute Care Hospitals · Lindsay, OK
OwnershipGovernment - Hospital District or Authority
CMS Certification Number370214
Location1305 W Cherokee Street - Highway 19 WestLindsay, OK 73052 · Garvin County
Emergency services

Harmon Memorial Hospital

Critical Access Hospitals · Hollis, OK
OwnershipVoluntary non-profit - Other
CMS Certification Number371338
Location400 East Chestnut StreetHollis, OK 73550 · Harmon County
Emergency services

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 73071 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$123.06 typical visit price
range $53.00 – $162.61
Typical copayment $30.76 (range $13.25 – $40.65)
Most-billed visit code 99204
Established Patient
$94.27 typical visit price
range $16.68 – $132.40
Typical copayment $23.56 (range $4.17 – $33.10)
Most-billed visit code 99214
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Medicare Quality Performance CMS QPP · MIPS

Performance in the CMS Quality Payment Program: the MIPS final score across four weighted categories, and the individual quality measures reported to Medicare.

91.18/100
MIPS Final ScoreMerit-based Incentive Payment System · CMS Quality Payment Program
Scored through an Alternative Payment Model
Quality79.27
Promoting Interoperability100
Improvement Activities40

Referred Medical Equipment & Supplies CMS DME claims 4

Durable medical equipment, devices and supplies this provider ordered from DME suppliers for patients, from Medicare fee-for-service claims.

Tacrolimus, immediate release, oral, 1 mg J7507
Treatment-Treatment - Miscellaneous · category RX029N
1 supplier11 claims330 services$0.33 avg. paid by Medicare
Mycophenolic acid, oral, 180 mg J7518
Treatment-Treatment - Miscellaneous · category RX029N
1 supplier12 claims1,440 services$1.02 avg. paid by Medicare
Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for the first prescription in a 30-day period Q0511
Treatment-Chemotherapy · category RH012N
1 supplier11 claims11 services$18.98 avg. paid by Medicare
Pharmacy supply fee for oral anti-cancer, oral anti-emetic or immunosuppressive drug(s); for a subsequent prescription in a 30-day period Q0512
Treatment-Chemotherapy · category RH012N
1 supplier12 claims12 services$12.66 avg. paid by Medicare
Dollar amounts are the average Medicare paid the supplier per service. They are not the cost to the patient.

Other Providers at the Same Location NPPES 9

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Internal Medicine (Nephrology)
1553 N PORTER AVE
NORMAN, OK 73071
Internal Medicine (Nephrology)
1553 N PORTER AVE
NORMAN, OK 73071
Internal Medicine
1553 N PORTER AVE
NORMAN, OK 73071
Internal Medicine (Nephrology)
1553 N PORTER AVE
NORMAN, OK 73071
Internal Medicine (Nephrology)
1553 N PORTER AVE
NORMAN, OK 73071
Internal Medicine (Nephrology)
1553 N PORTER AVE
NORMAN, OK 73071
Clinic/Center (Medical Specialty)
1553 N PORTER AVE
NORMAN, OK 73071
Medical Genetics (Clinical Genetics (M.D.))
1553 N PORTER AVE
NORMAN, OK 73071

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is David Williams's NPI number?

The NPI number for David Williams is 1518991264. It was assigned to this individual provider in the NPPES registry on July 10, 2006.

Where is David Williams located?

David Williams practices at 1553 N Porter Ave, Norman, OK 73071. The listed phone number is (405) 217-8500.

What is David Williams's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Nephrology, with taxonomy code 207RN0300X.

Is David Williams enrolled in Medicare?

Yes. David Williams is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

What insurance does David Williams accept?

Health plans from Ambetter from Arkansas Health & Wellness, Ambetter from Home State Health, Ambetter from Sunflower Health Plan, Ambetter from Superior HealthPlan and Ambetter of Oklahoma and 4 other insurers list David Williams as in-network in at least one marketplace plan. Coverage varies by plan and year; verify with the insurer or the provider before a visit.

Is David Williams affiliated with any hospitals?

According to CMS data, David Williams is affiliated with Norman Regional, Mercy Hospital Ada, Lindsay Municipal Hospital and Harmon Memorial Hospital.

When was this NPI record last updated?

The NPPES record for David Williams was last updated on July 8, 2007. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 19 years ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.