Provider Profile
Joseph V. Zwirko, PA-C
Unclaimed ProfileAbout Joseph Zwirko
Joseph V. Zwirko, PA-C is a physician assistant based in Springfield, MA. Medicare claims data shows Joseph provided 6,061 services to 1,575 patients. The services billed most often include injection, triamcinolone acetonide, not otherwise specified, 10 mg, aspiration and/or injection of fluid from large joint, and established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more. The provider's National Provider Identifier (NPI) is 1346403037.
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
- (413) 785-4666
- Email not available
Practice Locations
300 BIRNIE AVE SUITE 201
Springfield, MA 01107
Procedures Most Often Billed to Medicare
6,061 services · 1,575 patients · 19 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Aspiration and/or injection of fluid from large joint | Procedure | 20610 |
655 | More than most peers in Physician Assistant |
| Aspiration and/or injection of fluid large joint using ultrasound guidance | Procedure | 20611 |
123 | More often than most peers in Physician Assistant |
| Replacement of knee joint, both sides of knee | Procedure | 27447 |
94 | More than most peers in Physician Assistant |
| Injection into tendon or ligament | Procedure | 20550 |
37 | As often as other peers in Physician Assistant |
| Replacement of thigh bone and hip joint with prosthesis | Procedure | 27130 |
27 | As often as other peers in Physician Assistant |
| Aspiration and/or injection of fluid from small joint | Procedure | 20600 |
25 | As often as other peers in Physician Assistant |
| X-ray of hip, 2-3 views | Imaging | 73502 |
174 | More than most peers in Physician Assistant |
| X-ray of knee, 4 or more views | Imaging | 73564 |
168 | More than most peers in Physician Assistant |
| X-ray of knee, 3 views | Imaging | 73562 |
125 | More often than most peers in Physician Assistant |
| X-ray of shoulder, minimum of 2 views | Imaging | 73030 |
57 | 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.
Other physician assistants at this location 8
Same specialty, same street address — most likely the same department or group.
Related specialists at this location 4
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 — 30 related providers in 4 groups
Other physician assistants in Springfield 6
Same specialty, same city.
Trained at Other 8
Other providers in the same specialty who trained at the same institution.
Class of 2008 at Other 8
Providers who graduated from the same medical school in the same year.
Also performs Aspiration and/or injection of fluid from large joint 8
Providers in MA who bill this service to Medicare most often.
Common questions
What does Joseph V. Zwirko specialize in?
Joseph V. Zwirko is a physician assistant in Springfield, MA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Joseph V. Zwirko located?
Joseph V. Zwirko is listed at 300 Birnie Ave Suite 201, Springfield, MA 01107. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Joseph V. Zwirko's phone number?
The number on file is (413) 785-4666. Contact the office directly to confirm availability and scheduling.
NPI registry
What is the NPI for Joseph V. Zwirko?
Joseph V. Zwirko's National Provider Identifier is 1346403037. 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 Joseph V. Zwirko train?
Joseph V. Zwirko attended Other, graduating in 2008. This comes from the CMS National Downloadable File.
CMS public data
How much experience does Joseph V. Zwirko have?
Joseph V. Zwirko has 18 years experience. Calculated from a graduation year of 2008, reported in the CMS National Downloadable File.
CMS public data
What does Joseph V. Zwirko do most often?
According to Medicare billing data, Joseph V. Zwirko performs procedures including aspiration and/or injection of fluid from large joint, aspiration and/or injection of fluid large joint using ultrasound guidance and replacement of knee joint, both sides of knee; reads or performs imaging such as x-ray of hip, 2-3 views and x-ray of knee, 4 or more views, alongside routine visits and testing. This reflects Medicare patients only and is billing volume, not a measure of quality.
Medicare claims
Is Joseph V. Zwirko's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Joseph V. Zwirko. If this is you, claiming it is free.
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