Katherine O'Keefe, APNP
NPI 1922231075 · Family Nurse Practitioner · Wauwatosa, WI
Enrolled with Medicare as Practitioner - Nurse Practitioner · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine O'Keefe, APNP is a Family Nurse Practitioner provider in Wauwatosa, WI (NPI 1922231075).
Provider details
- NPI number
- 1922231075
- Entity type
- Individual
- Primary specialty
- Family Nurse PractitionerPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- APNP
- Sex
- Female
- Sole proprietor
- No
- License
- 15667330 (WI)
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure28% of score
16 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
112 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 Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 69 | $74 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 27 | $98 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 16 | $106 |
Typical Medicare-allowed amounts for these services range $74–$106 (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 · 15 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 43 | 17 |
| Amlodipine Besylate | 42 | 16 |
| Rosuvastatin Calcium | 26 | — |
| Levothyroxine Sodium | 25 | — |
| Fluticasone Propionate | 24 | — |
| Omeprazole | 24 | — |
| Lisinopril |
Practice location
Mailing address
Registry dates
- Enumerated
- 2009-08-24
- Last updated
- 2022-08-19
- Certified
- 2022-08-17
Frequently asked questions
- What is Katherine O'Keefe's NPI number?
- Katherine O'Keefe's National Provider Identifier (NPI) is 1922231075, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine O'Keefe's specialty?
- Katherine O'Keefe is listed in the NPPES registry with a primary specialty of Family Nurse Practitioner (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Katherine O'Keefe located?
- Katherine O'Keefe's practice location on file with NPPES is 1155 N Mayfair Rd, Wauwatosa, WI 53226-3462.
- What is Katherine O'Keefe's phone number?
- The practice phone number listed in the NPPES registry for Katherine O'Keefe is (414) 955-5990.
- Does Katherine O'Keefe accept Medicare?
- Katherine O'Keefe is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Katherine O'Keefe's NPI active?
- Yes — Katherine O'Keefe's NPI (1922231075) is active in the NPPES registry as of the last update on 2022-08-19.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.