Mark Faasse, MD
Mark Faasse, MD is an Urology Physician in Oak Lawn, IL, registered under NPI 1003025651.
Getting there
Here is what surrounds this office in Oak Lawn, based on OpenStreetMap data collected Aug 30, 2026. Parking is available about 511 ft away. The nearest transit stop is 0.25 mi away, served by 95th Street & Kostner. A pharmacy sits 0.45 mi from the entrance (Walgreens), which helps if you leave with a prescription.
Getting here and what is nearby
Parking 437 ft ~2 min
Parking 470 ft ~2 min
Parking 511 ft ~2 min
Transit 95th Street & Kostner 0.22 mi ~5 min
Transit 95th Street & Kilbourn 0.24 mi ~5 min
Transit 95th Street & Kostner 0.25 mi ~5 min
Convenience 7-Eleven 0.27 mi ~6 min
Restaurant Burger King 0.30 mi ~6 min
4545 West 95th Street, Oak Lawn 60453
Mo-Sa 06:00-22:00; Su 07:00-22:00
Hotel Oak Lawn Hilton 0.39 mi ~8 min
Restaurant Hooters 0.44 mi ~9 min
9159 South Cicero Avenue, Oak Lawn 60453
Pharmacy Walgreens 0.45 mi ~9 min
Restaurant Denny's 0.45 mi ~9 min
9217 South Cicero Avenue, Oak Lawn 60453
Gas station Mobil 0.47 mi ~10 min
9304 South Cicero Avenue, Oak Lawn 60453
Convenience Mobil Mart 0.48 mi ~10 min
9304 South Cicero Avenue, Oak Lawn 60453
Hotel Midway Inn & Suites 0.50 mi ~10 min
9320 South Cicero Avenue, Oak Lawn 60453
Hotel Miami Inn & Suites 0.51 mi ~11 min
9041 South Cicero Avenue, Oak Lawn 60453
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 |
|---|---|---|
| 036133740 | IL | Urology Physician primary |
This provider holds licence 036133740 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 - General Surgery
- PAC ID
- 5193038628
- Enrollment ID
- I20150713002477
Medicare enrolment is recorded as approved under the provider type Practitioner - General Surgery. 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 Urology covers
A urologist manages benign and malignant medical and surgical disorders of the genitourinary system and the adrenal gland. This specialist has comprehensive knowledge of and skills in endoscopic, percutaneous and open surgery of congenital and acquired conditions of the urinary and reproductive systems and their contiguous structures. NUCC Health Care Provider Taxonomy, code 208800000X
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 | 1003025651 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | May 21, 2007 |
| Last updated | Feb 13, 2025 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | MD |
| Practice address |
4440 W 95TH ST Oak Lawn, IL 60453 (708) 684-4557 |
| Mailing address |
29373 NETWORK PL Chicago, IL 60673 |
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 | 0 | 2 | 5 | 6 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 0 | 2 | 1 | 6 | 1 |
Sum = 39 · next multiple of 10 = 40 · check digit = 1 · actual last digit = 1
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.