Dianna Willis, D.O.
NPI 1376641316 · Family Medicine Physician · Sapulpa, OK
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Dianna Willis, D.O. is a Family Medicine Physician provider in Sapulpa, OK (NPI 1376641316).
Provider details
- NPI number
- 1376641316
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- D.O.
- Sex
- Female
- Sole proprietor
- No
- License
- 2405 (OK)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
19 yrs in NPPES registry
- Profile completeness28% of score
100% of core fields populated
- Practice footprint17% of score
1 documented practice location
- Medicare service volume (vs. specialty peers)28% of score
124 Medicare services, 2024 (ranked within specialty)
Medicare volume is ranked against active providers in the same specialty. Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider does (Medicare)
Based on Medicare fee-for-service claims, 2024; not all care is captured.
| Service (HCPCS) | Medicare services | Typical Medicare-allowed (2024) |
|---|---|---|
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 124 | $91 |
Typical Medicare-allowed amounts for these services range $91–$91 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, not a price quote and not what you would be billed. Medicare Part B covers roughly an eighth of all NPIs (65+ skew); services with fewer than 11 beneficiaries are suppressed by CMS. Source: CMS Medicare Physician & Other Practitioners, by Provider & Service.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 59 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Rosuvastatin Calcium | 218 | 39 |
| Lisinopril | 195 | 33 |
| Empagliflozinbrand: Jardiance | 151 | 27 |
| Atorvastatin Calcium | 149 | 22 |
| Metformin Hcl | 113 | 20 |
| Omeprazole | 111 | 21 |
| Amlodipine Besylate |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-09-21
- Last updated
- 2014-05-06
Frequently asked questions
- What is Dianna Willis's NPI number?
- Dianna Willis's National Provider Identifier (NPI) is 1376641316, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Dianna Willis's specialty?
- Dianna Willis is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Dianna Willis located?
- Dianna Willis's practice location on file with NPPES is 1305 East Taft, Sapulpa, OK 74066-6033.
- What is Dianna Willis's phone number?
- The practice phone number listed in the NPPES registry for Dianna Willis is (918) 224-8425.
- Does Dianna Willis accept Medicare?
- Dianna Willis is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Dianna Willis's NPI active?
- Yes — Dianna Willis's NPI (1376641316) is active in the NPPES registry as of the last update on 2014-05-06.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.