Provider Profile
Gregory J. Niedzwiecki, PA-C
Unclaimed ProfileAbout Gregory Niedzwiecki
Gregory J. Niedzwiecki, PA-C is a physician assistant practicing in Lansing, MI. According to Medicare claims data, Gregory cared for 108 Medicare patients across 108 services. The services billed most often include emergency department visit with high level of medical decision making, critical care, first 30-74 minutes, and emergency department visit with moderate level of medical decision making. This provider record is associated with NPI 1720305592.
Factual summary compiled by Guide.md from public records; not written by this provider.
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
- (517) 364-1000
- Email not available
Practice Locations
1215 E MICHIGAN AVE C/O EMERGENCY DEPARTMENT
Lansing, MI 48912
Procedures Most Often Billed to Medicare
108 services · 108 patients · 3 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Emergency department visit with high level of medical decision making | Office visit | 99285 |
62 | More often than most peers in Physician Assistant |
| Critical care, first 30-74 minutes | Office visit | 99291 |
27 | As often as other peers in Physician Assistant |
| Emergency department visit with moderate level of medical decision making | Office visit | 99284 |
19 | 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 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.
More connections — 6 related providers in 1 group
Common questions
What does Gregory J. Niedzwiecki specialize in?
Gregory J. Niedzwiecki is a physician assistant in Lansing, MI. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where is Gregory J. Niedzwiecki located?
Gregory J. Niedzwiecki is listed at 1215 E Michigan Ave C/O Emergency Department, Lansing, MI 48912. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
What is Gregory J. Niedzwiecki's phone number?
The number on file is (517) 364-1000. Contact the office directly to confirm availability and scheduling.
NPI registry
What is Gregory J. Niedzwiecki's NPI number?
Gregory J. Niedzwiecki's National Provider Identifier is 1720305592. 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
How long has Gregory J. Niedzwiecki been practicing?
Gregory J. Niedzwiecki has 16+ years experience. Registered with an NPI since 2010. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
What does Gregory J. Niedzwiecki do most often?
According to Medicare billing data, Gregory J. Niedzwiecki 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
Has Gregory J. Niedzwiecki confirmed this information?
Not yet. This profile is built from public federal data and has not been confirmed by Gregory J. Niedzwiecki. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.