Karolina Maksimowski
Karolina Maksimowski is a Pediatric Emergency Medicine (Pediatrics) Physician in Detroit, MI, registered under NPI 1003259250. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty. 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 Detroit, based on OpenStreetMap data collected Sep 14, 2026. Parking is available about 0.24 mi away. There is EV charging 0.46 mi from the office (Wayne State University - Parking Structure #8) — useful if you are driving in from out of town. The nearest transit stop is 946 ft away, served by Mack / St Antoine (WB). A pharmacy sits 0.49 mi from the entrance (PharMor Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.48 mi away.
Getting here and what is nearby
Coffee Biggby Coffee 543 ft ~3 min
Restaurant Subway 712 ft ~3 min
4201 Street, Detroit 48201
Mo-Fr 09:00-21:00; Sa 10:00-16:00
Parking DMC Central Deck 745 ft ~3 min
200 East Alexandrine Street, Detroit 48201
Pharmacy Walgreens 749 ft ~3 min
Transit John R / Alexandrine NS (NB) 894 ft ~4 min
Transit John R / McLaughlin Hall (NB) 918 ft ~4 min
Transit Mack / St Antoine (WB) 946 ft ~4 min
Parking DMC North Deck 0.21 mi ~5 min
232 East Canfield Street, Detroit 48201
Parking 0.24 mi ~5 min
91 East Willis Avenue, Detroit 48201
Grocery Whole Foods Market 0.25 mi ~5 min
Pharmacy Midtown Rx Pharmacy 0.26 mi ~6 min
4100 Woodward Avenue, Detroit 48201
Restaurant Hammer & Nail 0.26 mi ~6 min
3800 Woodward Avenue, Detroit 48201
Restaurant Sgt. Pepperoni's 0.27 mi ~6 min
11:00-02:00
Coffee The Red Hook - Midtown 0.29 mi ~6 min
3965 Woodward Avenue, Detroit 48201
Mo-Fr 07:00-17:00; Sa 08:00-17:00; Su 09:00-14:00
Convenience Tiger Mart 0.39 mi ~8 min
Gas station Exxon 0.39 mi ~8 min
EV charging Wayne State University - Parking Structure #8 0.46 mi ~10 min
Convenience Shell Shop 0.46 mi ~10 min
Gas station Shell 0.46 mi ~10 min
4661 Woodward Avenue, Detroit 48201
Coffee Cafe Alto 0.48 mi ~10 min
Pharmacy PharMor Pharmacy 0.49 mi ~10 min
Grocery Food Pride Super Market 0.50 mi ~10 min
500 East Warren Avenue, Detroit 48201
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 |
|---|---|---|
| 56541 | CT | Pediatrics Physician |
| 4301114213 | MI | Pediatrics Physician |
| 35128153 | OH | Pediatrics Physician |
| 4301114213 | MI | Pediatric Emergency Medicine (Pediatrics)… primary |
Licences are recorded in 3 states: CT, MI, OH. Providers licensed in several states often practise near a state border or deliver telehealth across state lines.
- Status
- Approved
- Provider type
- Practitioner - Pediatric Medicine
- PAC ID
- 1153557913
- Enrollment ID
- I20180817001256
Medicare enrolment is recorded as approved under the provider type Practitioner - Pediatric Medicine. 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.
Licensed in 3 states
This provider holds licences in 3 states: Connecticut, Michigan and Ohio. The practice address on file is in Detroit, MI, but a licence in another state usually means they see patients there too — either at a second location or by telehealth. If the address above is far from you, it is worth calling to ask whether they practise closer to where you live.
- Licence
- 4301114213
- Specialty
- Pediatrics Physician
Licence numbers are self-reported to NPPES at registration. They do not confirm a licence is currently active, in good standing, or valid for the specialty shown — only the state board can tell you that, which is why we link to each one.
What Pediatric Emergency Medicine covers
A pediatrician who has special qualifications to manage emergencies in infants and children. NUCC Health Care Provider Taxonomy, code 2080P0204X
All registered taxonomy codes
This provider registers 4 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 208000000X | Pediatrics Physician | 56541 | CT | |
| 208000000X | Pediatrics Physician | 4301114213 | MI | |
| 208000000X | Pediatrics Physician | 35128153 | OH | |
| 2080P0204X | Pediatric Emergency Medicine (Pediatrics) Physician Pediatric Emergency Medicine | 4301114213 | MI | primary |
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 | 1003259250 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 8, 2013 |
| Last updated | Aug 14, 2018 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Practice address |
3901 BEAUBIEN ST Detroit, MI 48201 (313) 745-5260 Fax (313) 966-0665 |
| Mailing address |
4201 ST. ANTOINE UHC 5D MAILBOX 226 Detroit, MI 48201 |
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 | 2 | 5 | 9 | 2 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 5 | 9 | 2 | 1 |
Sum = 50 · next multiple of 10 = 50 · check digit = 0 · actual last digit = 0
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.