Theodore Mempanou
Theodore Mempanou is a provider specialising in Home Health Aide in Montgomery Village, MD, registered under NPI 1003364365. 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 Montgomery Village, based on OpenStreetMap data collected Sep 21, 2026. Parking is available about 0.44 mi away at Lakeforest Transit Center Park and Ride. The nearest transit stop is 0.31 mi away, served by Walkers Choice Rd & Walker House Rd. If you arrive early, there is a coffee shop 0.31 mi away.
Getting here and what is nearby
Transit Christopher Ave & Feathertree Way 0.22 mi ~5 min
Transit Christopher Ave & Hellingly Pl 0.22 mi ~5 min
Parking 0.28 mi ~6 min
Restaurant Micky's Chinese Restaurant 0.28 mi ~6 min
18204 Contour Road
Restaurant America's Best Wings 0.28 mi ~6 min
18208 Contour Road
Restaurant Wendy's 0.29 mi ~6 min
18350 Contour Road, Gaithersburg 20877
07:00-22:00
Transit Walkers Choice Rd & Walker House Rd 0.31 mi ~7 min
Coffee ViVi Bubble Tea 0.31 mi ~7 min
18320 Contour Road
Parking 0.39 mi ~8 min
Convenience Tiger Mart 0.40 mi ~9 min
Gas station Exxon 0.40 mi ~9 min
24 Montgomery Village Avenue, Gaithersburg 20879
Grocery H Mart 0.40 mi ~9 min
9639 Lost Knife Road
Parking Lakeforest Transit Center Park and Ride 0.44 mi ~9 min
Hotel Homewood Suites 0.46 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 |
|---|---|---|
| HHA12389 | DC | Home Health Aide primary |
This provider holds licence HHA12389 issued in DC. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
This NPI does not appear in the PECOS Medicare enrolment file. Providers who do not bill Medicare — or who bill only through a group's enrolment — will not appear here. It is not a sign of any problem with the registration.
What Home Health Aide covers
A person trained to assist public health nurses, home health nurses, and other health professionals in the bedside care of patients in their homes. NUCC Health Care Provider Taxonomy, code 374U00000X
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 | 1003364365 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Sep 15, 2016 |
| Last updated | Sep 15, 2016 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Practice address |
18335 LOST KNIFE CIR APT 303 Montgomery Village, MD 20886 (240) 544-8286 |
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 | 6 | 4 | 3 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 6 | 6 | 8 | 3 | 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.