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Edit this profileWhere to find Justin Duffy, PA-C
- Mchenry location main office
4309 W Medical Center Dr Ste A200, Mchenry, IL 60050 - Lewes location
431 Savannah Rd, Lewes, DE 19958
About Justin Duffy
Justin Duffy, PA-C is a physician assistant based in Mchenry, IL. Justin is also listed as specializing in physician assistant — surgical. Medicare claims data shows Justin provided 31 services to 31 patients. The services billed most often include initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes. The provider's National Provider Identifier (NPI) is 1174918809.
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
- (815) 759-8070
- Email not available
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Practice Locations
4309 W MEDICAL CENTER DR STE A200
Mchenry, IL 60050
431 Savannah Rd
Lewes, DE 19958
Procedures Most Often Billed to Medicare
31 services · 31 patients · 1 distinct code
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Initial hospital care with straightforward or low level of medical decision making, per day, if using time, at least 40 minutes | Office visit | 99221 |
31 | More 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.
Related specialists at this location 8
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.
Other physician assistants in Mchenry 8
Same specialty, same city.
More connections — 16 related providers in 2 groups
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2014 at Other 8
Providers who graduated from the same medical school in the same year.
Common questions
What is Justin Duffy's specialty?
Justin Duffy is a physician assistant in Mchenry, IL. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Justin Duffy?
Justin Duffy is listed at 4309 W Medical Center Dr Ste A200, Mchenry, IL 60050. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Justin Duffy?
The number on file is (815) 759-8070. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Justin Duffy?
Justin Duffy's National Provider Identifier is 1174918809. 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
What is Justin Duffy's education?
Justin Duffy attended Other, graduating in 2014. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Justin Duffy have?
Justin Duffy has 12 years experience. Calculated from a graduation year of 2014, reported in the CMS National Downloadable File.
CMS public data
What is Justin Duffy known for?
According to Medicare billing data, Justin Duffy 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 Justin Duffy's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Justin Duffy. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.