Katherine O'Leary, PA-C
NPI 1952830994 · Physician Assistant · Butler, PA
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Katherine O'Leary, PA-C is a Physician Assistant provider in Butler, PA (NPI 1952830994).
Provider details
- NPI number
- 1952830994
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Female
- Sole proprietor
- No
Specialties & taxonomies
Physician Assistants & Advanced Practice Nursing Providers
- Surgical Physician Assistant363AS0400X
Physician Assistants & Advanced Practice Nursing Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure25% of score
9 yrs in NPPES registry
- Profile completeness25% of score
83% of core fields populated
- Practice footprint15% of score
2 documented practice locations
- Medicare service volume (vs. specialty peers)25% of score
356 Medicare services, 2024 (ranked within specialty)
- Open Payments transparency10% of score
Has Open Payments disclosures (2024)
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 .
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 | 129 | $103 |
| Established Patient Office Or Other Outpatient Visit With Low Level OD Decision Making, If Using Time, 20 Minutes Or More99213 | 114 | $72 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 57 | $104 |
| Administration of Influenza Virus VaccineG0008 | 33 | $31 |
| Detection Test By Immunoassay Technique for Severe Acute Respiratory Syndrome Coronavirus and Influenza87428 | 23 | $67 |
Typical Medicare-allowed amounts for these services range $31–$104 (2024). The Medicare-allowed amount is what Medicare recognizes for a service under fee-for-service — a reference figure for 2024, 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 · 83 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Atorvastatin Calcium | 222 | 67 |
| Levothyroxine Sodium | 161 | 41 |
| Amlodipine Besylate | 158 | 47 |
| Lisinopril | 149 | 45 |
| Simvastatin | 126 | 42 |
| Pantoprazole Sodium | 123 | 34 |
| Omeprazole | 114 |
Transparency — industry payments
Based on CMS Open Payments, 2024; not all care is captured.
$880 across 34 records (Open Payments 2024)
Open Payments discloses payments and transfers of value (meals, travel, consulting, research, royalties) from drug and device makers to providers. This is a transparency signal, not a verdict — such payments are legal and common, and their presence is neither an endorsement nor a criticism. Source: CMS Open Payments, program year 2024.
Practice location
Mailing address
Additional practice locations (1)
- 100 Innovation Dr Ste 101Slippery Rock, PA 16057-2468Phone: (833) 684-1891
Registry dates
- Enumerated
- 2017-06-05
- Last updated
- 2022-10-10
- Certified
- 2022-10-10
Frequently asked questions
- What is Katherine O'Leary's NPI number?
- Katherine O'Leary's National Provider Identifier (NPI) is 1952830994, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Katherine O'Leary's specialty?
- Katherine O'Leary is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is Katherine O'Leary located?
- Katherine O'Leary's practice location on file with NPPES is 129 Oneida Valley Rd Ste 111, Butler, PA 16001-2252.
- What is Katherine O'Leary's phone number?
- The practice phone number listed in the NPPES registry for Katherine O'Leary is (724) 431-4190.
- Does Katherine O'Leary accept Medicare?
- Katherine O'Leary 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'Leary's NPI active?
- Yes — Katherine O'Leary's NPI (1952830994) is active in the NPPES registry as of the last update on 2022-10-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.