Provider Profile
Marina Gershteyn, PA-C is a physician assistant practicing in Chicago, IL. Medicare claims data shows Marina provided 1,319 services to 395 patients. The services billed most often include subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more, nursing facility ventilation assistance and management, and subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes.
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.
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.
Exactly as CMS reports it (National Downloadable File, Opt-Out Affidavits, Order & Referring). Not an insurance directory; confirm coverage with the office.
5600 W ADDISON ST STE 306
Chicago, IL 60634
1,319 services · 395 patients · 9 distinct codes
| Procedure | Type | Code | Services | Compared with peers |
|---|---|---|---|---|
| Nursing facility ventilation assistance and management | Treatment | 94004 |
373 | Too few peers to compare |
| Follow-up inpatient or observation ventilation assistance and management | Treatment | 94003 |
98 | Too few peers to compare |
| Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, 20 minutes or more | Office visit | 99308 |
385 | More often than most peers in Physician Assistant |
| Subsequent hospital care with moderate levelof medical decision making, if using time, at least 35 minutes | Office visit | 99232 |
131 | More often than most peers in Physician Assistant |
| Subsequent nursing facility care with straightforward level of medical decision making, per day, if using time, at least 10 minutes | Office visit | 99307 |
124 | More often than most peers in Physician Assistant |
| Subsequent nursing facility care with moderate level of medical decision making, per day, if using time, at least 30 minutes | Office visit | 99309 |
68 | Less often than most peers in Physician Assistant |
| Initial nursing facility care with high level of medical decision making, per day, if using time, 50 minutes or more | Office visit | 99306 |
68 | As often as other peers in Physician Assistant |
| Subsequent hospital care with straightforward or low level of medical decision making, per day, if using time, at least 25 minutes | Office visit | 99231 |
46 | More often than most peers in Physician Assistant |
| Initial nursing facility care with moderate level of medical decision making, per day, if using time, at least 35 minutes | Office visit | 99305 |
26 | 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.
Marina Gershteyn is a physician assistant in Chicago, IL. That is the designation recorded for this NPI in the federal registry.
NPI registry
Marina Gershteyn is listed at 5600 W Addison St Ste 306, Chicago, IL 60634. Addresses come from the NPI registry and can lag a move, so confirm before travelling.
NPI registry
The number on file is (773) 283-8664. Guide.md cannot book appointments or pass on messages — please call the office directly.
NPI registry
Marina Gershteyn's National Provider Identifier is 1003141995. 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
Marina Gershteyn attended Other, graduating in 2009. This comes from the CMS National Downloadable File.
CMS public data
Marina Gershteyn has 17 years experience. Calculated from a graduation year of 2009, reported in the CMS National Downloadable File.
CMS public data
According to Medicare billing data, Marina Gershteyn provides treatments such as nursing facility ventilation assistance and management and follow-up inpatient or observation ventilation assistance and management, alongside routine visits and testing. 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 Marina Gershteyn. 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.