Provider Profile
Colin T. Zimmerman, PA-C
Unclaimed ProfileAbout Colin Zimmerman
Colin T. Zimmerman, PA-C is a physician assistant practicing in Williamsport, PA. Medicare claims data shows Colin provided 113 services to 107 patients. The services billed most often include emergency department visit with high level of medical decision making and emergency department visit with moderate level of medical decision making.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it — free, and no identity document with a practice or institutional email.
Specialty
Credentials & Licensing
License numbers are what the provider reported to NPPES when the NPI was issued or updated. NPPES does not verify licensure; confirm current standing with the state licensing board.
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
- (570) 321-1000
- Email not available
Practice Locations
700 HIGH ST
Williamsport, PA 17701
Procedures Most Often Billed to Medicare
113 services · 107 patients · 2 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Emergency department visit with high level of medical decision making | Office visit | 99285 |
75 | More often than most peers in Physician Assistant |
| Emergency department visit with moderate level of medical decision making | Office visit | 99284 |
38 | As often as other 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 3
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 — 5 related providers in 1 group
Common questions
What is Colin T. Zimmerman's specialty?
Colin T. Zimmerman is a physician assistant in Williamsport, PA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Where can I find Colin T. Zimmerman?
Colin T. Zimmerman is listed at 700 High St, Williamsport, PA 17701. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
How do I contact Colin T. Zimmerman?
The number on file is (570) 321-1000. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
What is the NPI for Colin T. Zimmerman?
Colin T. Zimmerman's National Provider Identifier is 1245902949. 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 much experience does Colin T. Zimmerman have?
Colin T. Zimmerman has 5+ years experience. Registered with an NPI since 2021. National Provider Identifiers only began in 2005, so a provider who qualified earlier may have practiced for longer than this.
NPI registry
What is Colin T. Zimmerman known for?
According to Medicare billing data, Colin T. Zimmerman 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 Colin T. Zimmerman's profile verified?
Not yet. This profile is built from public federal data and has not been confirmed by Colin T. Zimmerman. If this is you, claiming it is free.
Guide.md
Provider data sourced from the NPPES NPI Registry and CMS public datasets. Information is provided for reference and is not medical advice.