Marieka Helou, MD
Marieka Helou, MD is a Pediatric Hematology & Oncology Physician in Richmond, VA, registered under NPI 1003025230.
Getting there
Here is what surrounds this office in Richmond, based on OpenStreetMap data collected Aug 30, 2026. Parking is available about 0.26 mi away at Capitol Square Parking. There is EV charging 0.46 mi from the office — useful if you are driving in from out of town. The nearest transit stop is 673 ft away, served by Government Center Westbound Pulse Stop. A pharmacy sits 0.48 mi from the entrance (Walgreens), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.33 mi away.
Getting here and what is nearby
Coffee Starbucks 148 ft ~1 min
Restaurant Panera Bread 144 ft ~1 min
Restaurant Subway 257 ft ~1 min
1250 East Marshall Street, Richmond 23298
Mo-Fr 10:00-19:00; Su 10:00-19:00
Transit VCU Medical Center Westbound Pulse Stop 479 ft ~2 min
Transit VCU Medical Center Eastbound Pulse Stop 663 ft ~3 min
Transit Government Center Westbound Pulse Stop 673 ft ~3 min
Restaurant Chick-fil-A 809 ft ~4 min
403 North 13th Street, Richmond 23298
Mo-Fr 07:00-17:00; Su off
Parking Deck D, Faculty/Staff Parking 849 ft ~4 min
515 North 13th Street, Richmond 23219
Parking Commonwealth of Virginia Parking 0.23 mi ~5 min
319 North 7th Street, Richmond 23219
Parking Capitol Square Parking 0.26 mi ~6 min
1200 Bank Street, Richmond 23219
Coffee Starbucks 0.27 mi ~6 min
Hotel The Commonwealth 0.31 mi ~7 min
Coffee Sefton Coffee Company 0.33 mi ~7 min
24 North 8th Street, Richmond 23219
Mo-Fr 08:00-17:00; Sa-Su off
Convenience 7-Eleven 0.33 mi ~7 min
Convenience Mini-Mart 0.34 mi ~7 min
Mo-Fr 08:30-22:00; Sa 10:30-22:00
Convenience Essential Express 0.34 mi ~7 min
1219 East Main Street, Richmond 23219
Hotel Richmond Marriott 0.35 mi ~7 min
500 East Broad Street, Richmond 23219
Hotel Hilton Richmond Downtown 0.38 mi ~8 min
Gas station Exxon 0.45 mi ~10 min
1701 East Broad Street, Richmond 23223
EV charging 0.46 mi ~10 min
Pharmacy Walgreens 0.48 mi ~10 min
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 |
|---|---|---|
| 0101245445 | VA | Pediatric Hematology & Oncology Physician primary |
This provider holds licence 0101245445 issued in VA. 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 - Pediatric Medicine
- PAC ID
- 8022261890
- Enrollment ID
- I20130102000317
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.
What Pediatric Hematology-Oncology covers
A pediatrician trained in the combination of pediatrics, hematology and oncology to recognize and manage pediatric blood disorders and cancerous diseases. NUCC Health Care Provider Taxonomy, code 2080P0207X
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 | 1003025230 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | May 22, 2007 |
| Last updated | Nov 2, 2012 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | MD |
| Practice address |
401 N 11TH ST NELSON CLINIC, 2ND FLOOR, ROOM 210 Richmond, VA 23298 (804) 828-9300 |
| Mailing address |
PO BOX 980121 Richmond, VA 23298 |
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 | 2 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 0 | 2 | 1 | 2 | 6 |
Sum = 40 · next multiple of 10 = 40 · 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.