Evan Der, MD, PHD
Evan Der, MD, PHD is a provider specialising in Student in an Organized Health Care Education/Training Program in Bethesda, MD, registered under NPI 1003511452. 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 Bethesda, based on OpenStreetMap data collected Sep 1, 2026. Parking is available about 0.40 mi away at MLP-8. The nearest transit stop is 747 ft away, served by Cedar Ln at Old Georgetown Rd.
Getting here and what is nearby
Hotel Safra Family Lodge 198 ft ~1 min
9001 Old Georgetown Road, Bethesda 20892
Transit 391 ft ~2 min
Transit W Cedar Ln at Old Georgetown Rd 654 ft ~3 min
Transit Cedar Ln at Old Georgetown Rd 747 ft ~3 min
Hotel The Children's Inn at NIH 0.20 mi ~5 min
Parking MLP-9 0.20 mi ~4 min
9 Convent Drive, Bethesda 20892
Parking MLP-6 0.38 mi ~8 min
6 Convent Drive, Bethesda 20892
Parking MLP-8 0.40 mi ~8 min
4 Convent Drive, Bethesda 20892
Distances are straight‑line estimates — walking routes may be longer. Hours and phone numbers can change; call ahead to confirm.
Credentials and Medicare
NPPES does not list a state licence number for this record. That is not unusual — organizations and some provider types are not required to file one. Verify current licensure with the relevant state board before care.
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 Student in an Organized Health Care Education/Training Program covers
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care. NUCC Health Care Provider Taxonomy, code 390200000X
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 | 1003511452 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 4, 2023 |
| Last updated | Apr 4, 2023 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Credential | MD, PHD |
| Practice address |
10 CENTER DR BLDG 10 Bethesda, MD 20892 (510) 390-4760 |
| Mailing address |
822 DOWNING ST Teaneck, NJ 07666 |
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 | 5 | 1 | 1 | 4 | 5 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 1 | 1 | 2 | 4 | 1 |
Sum = 38 · next multiple of 10 = 40 · check digit = 2 · actual last digit = 2
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.