Marina Gershteyn, PA-C
Marina Gershteyn, PA-C is a Physician Assistant in Chicago, IL, registered under NPI 1003141995. NPPES records them as a sole proprietor, meaning the practice is not incorporated as a separate legal entity.
Getting there
Here is what surrounds this office in Chicago, based on OpenStreetMap data collected Sep 7, 2026. Parking is available about 0.27 mi away. The nearest transit stop is 114 ft away, served by Central & Addison. A pharmacy sits 0.45 mi from the entrance (Walgreens), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.43 mi away.
Getting here and what is nearby
Transit Central & Addison 29 ft ~1 min
Transit Addison & Central 111 ft ~1 min
Transit Central & Addison 114 ft ~1 min
Pharmacy CVS Pharmacy 241 ft ~1 min
Parking Community First Health Center Parking Garage 363 ft ~2 min
5616-5652 West Addison Street, Chicago 60634
Parking 0.21 mi ~5 min
Parking 0.27 mi ~6 min
Coffee Mather’s More Than a Cafe 0.43 mi ~9 min
Pharmacy Walgreens 0.45 mi ~9 min
Restaurant Bluebird Portage Park 0.45 mi ~10 min
Convenience Shell 0.49 mi ~10 min
5201 West Addison Street, Chicago 60641
Gas station Shell 0.49 mi ~10 min
5201 West Addison Street, Chicago 60641
Grocery Tony's Fresh Market 0.49 mi ~10 min
Convenience BP Shop 0.50 mi ~10 min
5200 West Addison Street, Chicago 60641
Gas station BP 0.50 mi ~10 min
5200 West Addison Street, Chicago 60641
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
| Licence | State | Specialty |
|---|---|---|
| 085-003534 | IL | Physician Assistant primary |
This provider holds licence 085-003534 issued in IL. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Practitioner - Physician Assistant
- PAC ID
- 7810186988
- Enrollment ID
- I20110105001282
Medicare enrolment is recorded as approved under the provider type Practitioner - Physician Assistant. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Physician Assistant covers
A physician assistant is a person who has successfully completed an accredited education program for physician assistant, is licensed by the state and is practicing within the scope of that license. Physician assistants are formally trained to perform many of the routine, time-consuming tasks a physician can do. In some states, they may prescribe medications. They take medical histories, perform physical exams, order lab tests and x-rays, and give inoculations. Most states require that they work under the supervision of a physician. NUCC Health Care Provider Taxonomy, code 363A00000X
The taxonomy records how the provider classifies their own practice. It does not confirm which conditions they currently treat, whether they are accepting new patients, or which insurance they take — call the office for that.
Full NPPES record
An NPI-1 identifies a single person. It stays with the clinician for life, even if they move practice or change state, which is why the address on file can lag behind where they actually work today.
| NPI | 1003141995 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Oct 9, 2009 |
| Last updated | Apr 29, 2010 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Credential | PA-C |
| Practice address |
5600 W ADDISON ST STE 306 Chicago, IL 60634 (773) 283-8664 Fax (773) 283-8688 |
| Mailing address |
4953 WRIGHT TER Skokie, IL 60077 |
Number check
How the check works, step by step
Every NPI carries a Luhn check digit — the same scheme used on credit cards. CMS prefixes the number with 80840 before computing it, which marks it as a US health identifier.
| Digit | 8 | 0 | 8 | 4 | 0 | 1 | 0 | 0 | 3 | 1 | 4 | 1 | 9 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 2 | 4 | 2 | 9 | 9 |
Sum = 55 · next multiple of 10 = 60 · check digit = 5 · actual last digit = 5
A valid check digit only means the number is well-formed. It does not mean the provider is licensed, active, or in good standing — those are separate questions answered by the sections above.