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DR. DIANNA MARIE WILLIS D.O.
NPI 1376641316
Family Medicine in Sapulpa, OK

Active since September 21, 2006PECOS Enrolled
1305 EAST TAFT, SAPULPA, OK 74066(918) 224-8425(918) 224-8426 Get Directions Write a Review

NPPES record last updated: May 6, 2014. Verified against the NPPES registry weekly; last sync: November 01, 2026.

About Dr. Dianna Marie Willis D.o. NPPES

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

DR. DIANNA MARIE WILLIS D.O. (NPI 1376641316) is an individual family medicine provider in Sapulpa, Oklahoma, licensed in Oklahoma (2405) and active in the NPI registry since September 2006. She is enrolled in Medicare PECOS.

NPPES Registry Identity

NPI1376641316
Entity TypeIndividualFemale
Primary Taxonomy207Q00000X
Provider Legal NameDR. DIANNA MARIE WILLISCredential: D.O.
Location Address1305 EAST TAFTSapulpa, OK 74066-6033
Mailing Address1305 East TaftSapulpa, OK 74066-6033 · (918) 224-8425 · Fax (918) 224-8426
Phone(918) 224-8425
Fax(918) 224-8426
Sole ProprietorNo
Enumeration DateSeptember 21, 2006
Last NPPES UpdateMay 6, 2014
✔ NPI 1376641316 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses

★ Primary SpecialtyFamily MedicineAllopathic & Osteopathic Physicians
Taxonomy Code207Q00000X
License✔ Licensed in OK · 2405
Definition
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity.
1305 EAST TAFT, Sapulpa, OK 74066
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Other Identifiers 3

Medicare UPINE45378OK
Medicare PIN339187YLVOOK
Medicaid100111330DOK

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, billing reassignment, and ordering and referring status from CMS.

Medicare Enrollment Status

✔

Enrolled in Medicare (PECOS)

Dr. Dianna Marie Willis D.o. is registered in the CMS Provider Enrollment, Chain and Ownership System (PECOS).

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.

Medicare Billing Reassignment

Medicare enrollment records show Dianna Willis reassigns Medicare billing to 1 organization. The organization bills Medicare for the services this provider delivers there.

Creek Nation Hospital & Clinics
41 mi
Family Medicine
1800 E COPLIN ST
Okemah, OK 74859
  • Reassigned Medicare billing, Texas enrollment
  • 655 clinicians in this Medicare group
NPI 1467053173 (918) 623-1424

Source: CMS Revalidation Reassignment List, October 2026 release. Reassignment records can lag staffing changes; confirm a current affiliation with the organization.

Areas of Expertise CMS Part B claims

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.
124 services52 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 74066 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
$82.46 typical visit price
range $53.00 – $162.61
Typical copayment $20.61 (range $13.25 – $40.65)
Most-billed visit code 99203
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.

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 Dianna Willis's NPI number?

The NPI number for Dianna Willis is 1376641316. It was assigned to this individual provider in the NPPES registry on September 21, 2006.

Where is Dianna Willis located?

Dianna Willis practices at 1305 East Taft, Sapulpa, OK 74066. The listed phone number is (918) 224-8425.

What is Dianna Willis's specialty?

The primary specialty registered for this NPI is Family Medicine with taxonomy code 207Q00000X.

Is Dianna Willis enrolled in Medicare?

Yes. Dianna Willis is registered in the Medicare PECOS enrollment system.

Which organization bills Medicare for Dianna Willis's services?

According to the CMS Revalidation Reassignment List (October 2026 release), Dianna Willis reassigns Medicare benefits to Creek Nation Hospital & Clinics (Okemah, OK). The reassignment is filed with Medicare on form CMS-855R, signed by both the clinician and the organization, and lets the organization bill Medicare and receive payment for Dianna Willis's services. Reassignment records can lag staffing changes; confirm current arrangements with the organization.

When was this NPI record last updated?

The NPPES record for Dianna Willis was last updated on May 6, 2014. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 12 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.