Ditte Primdahl, MD
Ditte Primdahl, MD is a Neurology Physician in Chicago, IL, registered under NPI 1003349028. 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 Chicago, based on OpenStreetMap data collected Sep 5, 2026. Parking is available about 770 ft away at Erie Ontario Parking C. The nearest transit stop is 483 ft away, served by Michigan & Erie. A pharmacy sits 0.30 mi from the entrance (Walgreens), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 319 ft away.
Getting here and what is nearby
Coffee Corner Bakery 93 ft ~1 min
Coffee Starbucks 105 ft ~1 min
Restaurant The Capital Grille 145 ft ~1 min
Restaurant Panera Bread 177 ft ~1 min
201 East Huron Street, Chicago 60611
Mo-Th 06:30-16:00; Fr 06:30-14:00
Restaurant RAMEN-SAN 181 ft ~1 min
Hotel Hyatt Centric Chicago Magnificent Mile 212 ft ~1 min
215 East Erie Street, Chicago 60611
Hotel The St. Clair Hotel 264 ft ~1 min
Transit Ontario & St. Clair 313 ft ~2 min
Coffee Do - Rite Donuts & Chicken 319 ft ~2 min
Hotel Fairfield Inn & Suites Chicago Downtown/Magnificent Mile 298 ft ~2 min
Transit Michigan & Huron 441 ft ~2 min
Parking Huron-Superior Self Park 425 ft ~2 min
222 East Huron Street, Chicago 60611
Transit Michigan & Erie 483 ft ~2 min
Parking Northwest University Parking B 472 ft ~2 min
259 East Erie Street, 60611
Convenience 7-Eleven 686 ft ~3 min
Parking Erie Ontario Parking C 770 ft ~3 min
321 East Erie Street
Pharmacy Walgreens 884 ft ~4 min
Grocery Trader Joe's 0.20 mi ~4 min
44 East Ontario Street, Chicago 60611
Mo-Su 08:00-21:00
Grocery Whole Foods Market 0.21 mi ~5 min
255 East Grand Avenue, Chicago 60611
Mo-Su 08:00-22:00
Grocery Bockwinkel's 0.21 mi ~5 min
Convenience 7-Eleven 0.25 mi ~6 min
Convenience 7-Eleven 0.25 mi ~6 min
Pharmacy CVS Pharmacy 0.26 mi ~6 min
Pharmacy Walgreens 0.30 mi ~7 min
Gas station BP 0.49 mi ~10 min
631 North LaSalle Drive, Chicago 60654
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 |
|---|---|---|
| 036169118 | IL | Neurology Physician primary |
This provider holds licence 036169118 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 - Neurology
- PAC ID
- 0244500411
- Enrollment ID
- I20240730004352
Medicare enrolment is recorded as approved under the provider type Practitioner - Neurology. 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 Neurology covers
A Neurologist specializes in the diagnosis and treatment of diseases or impaired function of the brain, spinal cord, peripheral nerves, muscles, autonomic nervous system, and blood vessels that relate to these structures. NUCC Health Care Provider Taxonomy, code 2084N0400X
All registered taxonomy codes
This provider registers 2 taxonomy codes. The primary code is what appears on most claims; the others record additional recognised specialties.
| Code | Specialty | Licence | State | |
|---|---|---|---|---|
| 2084N0400X | Neurology Physician Neurology | 036169118 | IL | primary |
| 282N00000X | General Acute Care Hospital | — | WI |
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 | 1003349028 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 6, 2017 |
| Last updated | Dec 9, 2024 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Credential | MD |
| Practice address |
675 N SAINT CLAIR ST STE 20-100 Chicago, IL 60611 (312) 695-4360 Fax (312) 695-1435 |
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 | 3 | 4 | 9 | 0 | 2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 6 | 4 | 9 | 0 | 4 |
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.