Provider Profile
Ian E. Dziewietin, PA-C is a physician assistant based in Worcester, MA. Medicare claims data shows Ian provided 130 services to 129 patients. The services billed most often include emergency department visit with moderate level of medical decision making, emergency department visit with high level of medical decision making, and established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more. The provider's National Provider Identifier (NPI) is 1104463637.
Factual summary compiled by Guide.md from public records; not written by this provider.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
55 LAKE AVE N
Worcester, MA 01655
130 services · 129 patients · 5 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Emergency department visit with moderate level of medical decision making | Office visit | 99284 |
42 | As often as other peers in Physician Assistant |
| Emergency department visit with high level of medical decision making | Office visit | 99285 |
39 | As often as other peers in Physician Assistant |
| Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more | Office visit | 99214 |
18 | Less often than most peers in Physician Assistant |
| Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more | Office visit | 99213 |
18 | Less often than most peers in Physician Assistant |
| Emergency department visit with low level of medical decision making | Office visit | 99283 |
13 | 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.
Ian E. Dziewietin is a physician assistant in Worcester, MA. That is the designation recorded for this NPI in the federal registry.
NPI registry
Ian E. Dziewietin is listed at 55 Lake Ave N, Worcester, MA 01655. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (508) 421-1400. Contact the office directly to confirm availability and scheduling.
NPI registry
Ian E. Dziewietin's National Provider Identifier is 1104463637. 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
Ian E. Dziewietin attended Other, graduating in 2020. This comes from the CMS National Downloadable File.
CMS public data
Ian E. Dziewietin has 6 years experience. Calculated from a graduation year of 2020, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Ian E. Dziewietin 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
Not yet. This profile is built from public federal data and has not been confirmed by Ian E. Dziewietin. If this is you, claiming it is free.
Guide.md
Guide.md listings do not constitute medical advice or an endorsement.