John O'Leary, PA-C
NPI 1487347928 · Physician Assistant · Jackson, WI
Enrolled with Medicare as Practitioner - Physician Assistant · source: CMS PECOS Public Provider Enrollment (2026.04.01)
John O'Leary, PA-C is a Physician Assistant provider in Jackson, WI (NPI 1487347928).
Provider details
- NPI number
- 1487347928
- Entity type
- Individual
- Primary specialty
- Physician AssistantPhysician Assistants & Advanced Practice Nursing Providers
- Credential
- PA-C
- Sex
- Male
- Sole proprietor
- No
- License
- 7492-23 (WI)
Specialties & taxonomies
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
3 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
257 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 | 126 | $72 |
| Established Patient Office Or Other Outpatient Visit With Moderate Level of Decision Making, If Using Time, 30 Minutes Or More99214 | 45 | $101 |
| Annual Wellness Visit, Includes a Personalized Prevention Plan of Service (pps), Subsequent VisitG0439 | 45 | $103 |
| Established Patient Office Or Other Outpatient Visit With Straightforward Medical Decision Making, If Using Time, 10 Minutes Or More99212 | 28 | $44 |
| Administration of Influenza Virus VaccineG0008 | 13 | $14 |
Typical Medicare-allowed amounts for these services range $14–$103 (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 · 39 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Omeprazole | 60 | 19 |
| Atorvastatin Calcium | 59 | 22 |
| Lisinopril | 52 | 22 |
| Tamsulosin Hcl | 52 | 16 |
| Losartan Potassium | 41 | 17 |
| Amlodipine Besylate | 39 | 17 |
| Gabapentin |
Practice location
Mailing address
Registry dates
- Enumerated
- 2023-05-31
- Last updated
- 2023-07-10
- Certified
- 2023-07-10
Frequently asked questions
- What is John O'Leary's NPI number?
- John O'Leary's National Provider Identifier (NPI) is 1487347928, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is John O'Leary's specialty?
- John O'Leary is listed in the NPPES registry with a primary specialty of Physician Assistant (Physician Assistants & Advanced Practice Nursing Providers).
- Where is John O'Leary located?
- John O'Leary's practice location on file with NPPES is W225n16711 Cedar Park Ct, Jackson, WI 53037-9222.
- What is John O'Leary's phone number?
- The practice phone number listed in the NPPES registry for John O'Leary is (262) 677-1101.
- Does John O'Leary accept Medicare?
- John 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 John O'Leary's NPI active?
- Yes — John O'Leary's NPI (1487347928) is active in the NPPES registry as of the last update on 2023-07-10.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.