Timothy Prajka, DO
Timothy Prajka, DO is a Family Medicine Physician in Chicago, IL, registered under NPI 1003445248.
Getting there
Here is what surrounds this office in Chicago, based on OpenStreetMap data collected Sep 27, 2026. Parking is available about 585 ft away. The nearest transit stop is 0.21 mi away, served by 95th Street & Stony Island.
Getting here and what is nearby
Grocery Jewel-Osco 275 ft ~2 min
1655 East 95th Street, Chicago 60617
Mo-Fr 06:00-22:00; Sa 06:00-22:00; Su 06:00-22:00
Parking 304 ft ~2 min
Restaurant BJ's Market & Bakery 389 ft ~2 min
Parking 531 ft ~3 min
Parking 585 ft ~3 min
Restaurant Burger King 594 ft ~3 min
1701 East 95th Street, Chicago 60617
Mo-Sa 06:00-22:00; Su 07:00-22:00
Transit 95th Street & Stony Island Plaza 680 ft ~3 min
Restaurant KFC 734 ft ~3 min
Convenience Circle K 775 ft ~3 min
Gas station Shell 845 ft ~4 min
Transit 95th Street & Constance 972 ft ~4 min
Convenience Mobil Mart 0.20 mi ~4 min
Gas station Mobil 0.20 mi ~5 min
Transit 95th Street & Stony Island 0.21 mi ~5 min
Hotel Stony Island Motel 0.50 mi ~10 min
9201 South Stony Island Avenue, Chicago 60617
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 |
|---|---|---|
| 036-167259 | IL | Family Medicine Physician primary |
This provider holds licence 036-167259 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 - Family Practice
- PAC ID
- 6709235773
- Enrollment ID
- I20231215002238
Medicare enrolment is recorded as approved under the provider type Practitioner - Family Practice. 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 Family Medicine covers
Family Medicine is the medical specialty which is concerned with the total health care of the individual and the family. It is the specialty in breadth which integrates the biological, clinical, and behavioral sciences. The scope of family medicine is not limited by age, sex, organ system, or disease entity. NUCC Health Care Provider Taxonomy, code 207Q00000X
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 | 1003445248 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 8, 2020 |
| Last updated | Jun 15, 2026 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | DO |
| Practice address |
1715 E 95TH ST Chicago, IL 60617 (773) 768-4437 Fax (773) 564-3515 |
| Mailing address |
PO BOX 746715 Atlanta, GA 30374 |
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 | 4 | 4 | 5 | 2 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 8 | 4 | 1 | 2 | 8 |
Sum = 52 · next multiple of 10 = 60 · check digit = 8 · actual last digit = 8
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.