Ashley Mohan, DO
Ashley Mohan, DO is a Hematology & Oncology Physician in Springfield, IL, registered under NPI 1003377565. This provider registers 4 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
Here is what surrounds this office in Springfield, based on OpenStreetMap data collected Sep 22, 2026. Parking is available about 272 ft away. The nearest transit stop is 301 ft away, served by Rutledge & Miller. If you arrive early, there is a coffee shop 0.45 mi away.
Getting here and what is nearby
Parking 157 ft ~1 min
Transit Carpenter @ Simmons Cancer Institute 247 ft ~1 min
Parking 265 ft ~2 min
Parking 272 ft ~2 min
Transit Rutledge & Carpenter 291 ft ~2 min
Transit Rutledge & Miller 301 ft ~2 min
Restaurant Potbelly 314 ft ~2 min
228 West Miller Street, Springfield 62702
Mo-Su 06:30-21:00
Coffee Coffee Bar 0.33 mi ~7 min
Grocery County Market 0.34 mi ~7 min
210 East Carpenter Street, Springfield 62702
Mo-Su 06:00-23:00
Coffee Yellow Bird Coffee House 0.36 mi ~8 min
1001 North 1st Street, Springfield 62702
Mo-Fr 07:00-12:00
Restaurant Smoothie King 0.39 mi ~8 min
605 West Jefferson Street, Springfield 62702
Mo-Fr 07:00-19:00; Sa 09:00-17:00
Restaurant Maid-Rite 0.39 mi ~8 min
118 North Pasfield Street, Springfield 62702
Mo-Fr 10:00-15:00; Sa 11:00-14:00
Coffee Cafe Fresca 0.45 mi ~10 min
320 West Washington Street, Springfield 62701
Mo-Fr 07:00-14:00
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 |
|---|---|---|
| 036159554 | IL | Hematology & Oncology Physician primary |
| 036159554 | IL | Internal Medicine Physician |
| 036159554 | IL | Hospitalist Physician |
This provider holds licence 036159554 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 - Hematology/oncology
- PAC ID
- 6406183284
- Enrollment ID
- I20260507003524
Medicare enrolment is recorded as approved under the provider type Practitioner - Hematology/oncology. 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 Hematology & Oncology covers
An internist doctor of osteopathy that specializes in the treatment of the combination of hematology and oncology disorders. A doctor of osteopathy that is board eligible/certified by the American Osteopathic Board of Internal Medicine WAS able to obtain a Certificate of Special Qualifications in the field of Hematology and Oncology. The Certificate is NO longer offered. NUCC Health Care Provider Taxonomy, code 207RH0003X
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 | |
|---|---|---|---|---|
| 207RH0003X | Hematology & Oncology Physician Hematology & Oncology | 036159554 | IL | primary |
| 207R00000X | Internal Medicine Physician | 036159554 | IL | |
| 208M00000X | Hospitalist Physician | 036159554 | IL | |
| 390200000X | Student in an Organized Health Care Education/Training Program | — | — |
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 | 1003377565 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Mar 27, 2019 |
| Last updated | Feb 20, 2026 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | DO |
| Practice address |
315 W CARPENTER ST Springfield, IL 62702 (217) 545-8000 |
| Mailing address |
PO BOX 19639 Springfield, IL 62794 |
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 | 7 | 7 | 5 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 6 | 7 | 5 | 5 | 3 |
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.