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Edit this profileAt a glance
- 334 Bloomfield St, Ste 205, Johnstown, PA 15904
About John Onderko
John C. Onderko, PAC is a physician assistant practicing in Johnstown, PA. Medicare claims data shows John provided 90 services to 62 patients. The services billed most often include established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more, established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more, and annual alcohol misuse screening, 5 to 15 minutes. This provider record is associated with NPI 1548231863.
Factual summary compiled by Guide.md from public records; not written by this provider.
Education & Training
Specialty
Credentials & Licensing
Medicare information
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
Contact Information
- (814) 266-8686
- Email not available
Is this your home address or personal number? Hide it
Practice Locations
334 BLOOMFIELD ST STE 205
Johnstown, PA 15904
Procedures Most Often Billed to Medicare
90 services · 62 patients · 3 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
56 | As often as other peers in Physician Assistant |
| Established patient office or other outpatient visit with straightforward medical decision making, if using time, 10 minutes or more | Office visit | 99212 |
20 | As often as other peers in Physician Assistant |
| Annual alcohol misuse screening, 5 to 15 minutes | Billing code | G0442 |
14 | Less often than most peers in Physician Assistant |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Related providers
Connections drawn from the registry and from what providers have told us. A link here is not a referral or an endorsement.
Other physician assistants at this location 2
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 2
Clinically related specialties at the same address — the people this provider most likely works alongside.
Also at this address 4
Providers at the same street address. Each files their own registry entry, so a shared practice often appears under several different names.
More connections — 23 related providers in 3 groups
Other physician assistants in Johnstown 7
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 1979 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What kind of doctor is John C. Onderko?
John C. Onderko is a physician assistant in Johnstown, PA. That is the designation recorded for this NPI in the federal registry.
NPI registry
What is John C. Onderko's address?
John C. Onderko is listed at 334 Bloomfield St Ste 205, Johnstown, PA 15904. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How can I make an appointment with John C. Onderko?
The number on file is (814) 266-8686. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for John C. Onderko?
John C. Onderko's National Provider Identifier is 1548231863. It is issued by the Centers for Medicare & Medicaid Services and is unique and permanent — it does not change if they move practice.
NPI registry
Where did John C. Onderko train?
John C. Onderko attended Other, graduating in 1979. This comes from the CMS National Downloadable File.
CMS public data
How much experience does John C. Onderko have?
John C. Onderko has 47 years experience. Calculated from a graduation year of 1979, reported in the CMS National Downloadable File.
CMS public data
What procedures does John C. Onderko perform?
According to Medicare billing data, John C. Onderko the Medicare record under this individual NPI shows mainly office visits and diagnostic testing. Hospital-based physicians usually have their procedural work billed by the facility rather than under their own number, so this is a floor on their practice, not a description of it. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is John C. Onderko's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by John C. Onderko. If this is you, claiming it is free.
Guide.md
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