Kathleen Willey, M.D.
NPI 1821097114 · Family Medicine Physician · Hockessin, DE
Enrolled with Medicare as Practitioner - Family Practice · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Kathleen Willey, M.D. is a Family Medicine Physician provider in Hockessin, DE (NPI 1821097114).
Provider details
- NPI number
- 1821097114
- Entity type
- Individual
- Primary specialty
- Family Medicine PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Female
- Sole proprietor
- No
- License
- C10005226 (DE)
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
20 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
905 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 | 253 | $126 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 214 | $89 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 203 | $127 |
| Injection of Drug Or Substance Under Skin Or Into Muscle96372 | 75 | $14 |
| Administration of Influenza Virus VaccineG0008 | 36 | $32 |
| Routine Electrocardiogram (ecg) Using at Least 12 Leads With Interpretation and Report93000 |
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 108 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 581 | 174 |
| Levothyroxine Sodium | 390 | 126 |
| Amlodipine Besylate | 342 | 101 |
| Losartan Potassium | 264 | 83 |
| Lisinopril | 243 | 71 |
| Omeprazole | 207 | 66 |
| Hydrochlorothiazide |
Practice location
Mailing address
Registry dates
- Enumerated
- 2005-07-19
- Last updated
- 2008-04-11
Frequently asked questions
- What is Kathleen Willey's NPI number?
- Kathleen Willey's National Provider Identifier (NPI) is 1821097114, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Kathleen Willey's specialty?
- Kathleen Willey is listed in the NPPES registry with a primary specialty of Family Medicine Physician (Allopathic & Osteopathic Physicians).
- Where is Kathleen Willey located?
- Kathleen Willey's practice location on file with NPPES is 722 Yorklyn Rd, Hockessin, DE 19707-8718.
- What is Kathleen Willey's phone number?
- The practice phone number listed in the NPPES registry for Kathleen Willey is (302) 235-2351.
- Does Kathleen Willey accept Medicare?
- Kathleen Willey is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Kathleen Willey's NPI active?
- Yes — Kathleen Willey's NPI (1821097114) is active in the NPPES registry as of the last update on 2008-04-11.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.