Provider Profile
Listed in the NPI registry as a physician assistant, Marissa Block, PA-C practices in Milwaukee, WI. Marissa graduated from University of Wisconsin School of Medicine in 2024. According to Medicare claims data, Marissa cared for 42 Medicare patients across 43 services. The services billed most often include initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes.
Summarised automatically from public NPI registry and CMS Medicare data. Not written or reviewed by this provider. Claim this profile to replace it.
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.
9200 W WISCONSIN AVE
Milwaukee, WI 53226
43 services · 42 patients · 1 distinct codes
| Procedure | Type | Code | Services |
|---|---|---|---|
| Initial hospital care with moderate level of medical decision making, if using time, at least 75 minutes | Office visit | 99223 |
43 |
Source: CMS Medicare public data. Shows how often procedures were billed — not quality of care or patient satisfaction.
Marissa Block is a physician assistant in Milwaukee, WI. That is the designation recorded for this NPI in the federal registry.
NPI registry
Marissa Block is listed at 9200 W Wisconsin Ave, Milwaukee, WI 53226. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (414) 955-0350. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Marissa Block's National Provider Identifier is 1477286896. 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
Marissa Block attended University of Wisconsin School of Medicine, graduating in 2024. This comes from the CMS National Downloadable File.
CMS public data
Marissa Block has 2 years experience. Calculated from a graduation year of 2024, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Marissa Block 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 Marissa Block. 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.