Doctor profile · Federal record

Dr. Katherine O'Leary, PA-C

Physician Assistant · Surgical Physician Assistant · Butler, PA

  • NPI 1952830994
  • Accepts Medicare
  • 9 yrs in practice
  • Female
  • Group practice
  • No sanctions

Practice & contact

Operates at 2 locations .

NPPES Updated May 11, 2026
Primary practice
129 Oneida Valley RD Ste 111
Butler, PA 160012252
(724) 431-4190
Additional location
100 Innovation Dr Ste 101
Slippery Rock, PA 160572468
(833) 684-1891
Mailing address
Po Box 1549
Butler, PA 160031549

Credentials & registration

NPPES · NUCC
NPI registered
June 2017 — 9 yrs on file
Profile last updated
October 10, 2022
Year of graduation
2017 — 9 yrs since
Specialty taxonomy
363A00000X — NUCC code

Federal sanctions & exclusions

OIG LEIE Updated May 11, 2026

No sanctions, exclusions or revocations on file

Checked against OIG LEIE on NPI 1952830994. Last verified May 11, 2026.

Medicare procedures · 2023

Top services delivered

CMS Provider Utilization
Total services
419
Distinct HCPCS
6
Medicare allowed
$34,274
HCPCS Description Services Patients Avg allowed
99213 Established patient office or other outpatient visit, 20-29 minutes 154 107 $72
99214 Established patient office or other outpatient visit, 30-39 minutes 133 97 $103
G0439 Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit 62 62 $105
G0008 Administration of influenza virus vaccine 30 30 $29
90662 Influenza vaccine split virus, preservative free 28 28 $72
81002 Urinalysis, manual test 12 12 $3

In context: peer comparison

Among 13 peers in this city , average services per provider: 56. This provider delivers 7.5× the peer median.

Open Payments

Industry payments received

CMS Open Payments
All-time total
$880
Transactions
34
Manufacturers
10
Payer (manufacturer) Industry Txns Amount
Novo Nordisk Inc 10 $241.47
Astellas Pharma US Inc 5 $186.91
ABBVIE INC. 6 $184.24
GlaxoSmithKline, LLC. 5 $108.58
PFIZER INC. 2 $43.06
Exact Sciences Corporation 1 $33.51
Lilly USA, LLC 2 $29.89
Boehringer Ingelheim Pharmaceuticals, Inc. 1 $25.61
AstraZeneca Pharmaceuticals LP 1 $13.49
E.R. Squibb & Sons, L.L.C. 1 $13.18

By nature of payment

Food and Beverage
$880

Medicare Part D · 2023

Top prescriptions

CMS Part D Prescriber
Total claims
1,319
Patients
482
Total drug cost
$99,123
Drug Type Claims Patients Total cost
Atorvastatin Calcium Generic 171 62 $2,507
Lisinopril Generic 149 56 $1,431
Simvastatin Generic 127 48 $2,128
Levothyroxine Sodium Generic 112 36 $2,400
Amlodipine Besylate Generic 105 38 $844
Pantoprazole Sodium Generic 86 30 $1,617
Omeprazole Generic 81 32 $1,157
Atenolol Generic 77 25 $878
Losartan Potassium Generic 65 26 $1,234
Gabapentin Generic 64 17 $1,062

Frequently asked questions

Auto-generated from federal data
What is Dr. Katherine O'Leary's medical specialty?
Dr. Katherine O'Leary practices Physician Assistant in Butler, PA.
Where does Dr. Katherine O'Leary practice?
Dr. Katherine O'Leary practices at 129 Oneida Valley RD Ste 111, Butler, PA 160012252. Office phone: 7244314190.
What is Dr. Katherine O'Leary's NPI?
Dr. Katherine O'Leary's National Provider Identifier (NPI) is 1952830994, issued by NPPES.
Does Dr. Katherine O'Leary accept Medicare assignment?
Yes. Dr. Katherine O'Leary accepts Medicare assignment, meaning Medicare-allowed amounts are accepted as full payment for covered services.
What procedures does Dr. Katherine O'Leary commonly perform?
Top Medicare-reported procedures in 2023: Established patient office or other outpatient visit (HCPCS 99213); Established patient office or other outpatient visit (HCPCS 99214); Annual wellness visit, includes a personalized prevention plan of service (pps), subsequent visit (HCPCS G0439). Source: CMS Medicare Physician & Other Practitioners file.