Njenwieh Onya Clovis
Njenwieh Onya Clovis is a provider specialising in Case Manager/Care Coordinator in Washington, DC, registered under NPI 1003595315. This provider registers 3 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 Washington, based on OpenStreetMap data collected Oct 9, 2026. Parking is available about 503 ft away at Circle Park. There is EV charging 0.27 mi from the office (ChargePoint) — useful if you are driving in from out of town. The nearest transit stop is 653 ft away, served by 40th St NW at Albemarle St NW. A pharmacy sits 300 ft from the entrance (CVS Pharmacy), which helps if you leave with a prescription.
Getting here and what is nearby
Restaurant Dunkin' 33 ft ~1 min
4530 Wisconsin Avenue Northwest, Washington 20016
Mo-Fr 05:00-19:00; Sa 05:00-18:00; Su 06:00-18:00
Parking 103 ft ~1 min
Parking 117 ft ~1 min
Transit Wisconsin Ave NW at Brandywine St NW 142 ft ~1 min
Restaurant District Taco 184 ft ~1 min
4600 Wisconsin Avenue Northwest, Washington 20016
Mo-Su 10:00-22:00
Restaurant Domino's 208 ft ~1 min
4539 Wisconsin Avenue Northwest, Washington 20016
Mo-Th 10:00-24:00; Fr-Sa 10:00-01:00; Su 10:00-24:00
Pharmacy CVS Pharmacy 300 ft ~2 min
Grocery Whole Foods Market 412 ft ~2 min
4530 40th Street Northwest, Washington 20016
Mo-Su 07:00-22:00
Transit Wisconsin Ave NW at Albemarle St NW 497 ft ~2 min
Parking Circle Park 503 ft ~2 min
Mo-Su 07:00-23:00
Transit 40th St NW at Albemarle St NW 653 ft ~3 min
Convenience Wawa 616 ft ~3 min
4530 40th Street Northwest, Washington 20016
24/7
EV charging ChargePoint 0.27 mi ~6 min
Convenience Tenley Mini Market 0.31 mi ~7 min
4326 Wisconsin Avenue Northwest, Washington
Convenience 7-Eleven 0.31 mi ~7 min
4319 Wisconsin Avenue Northwest, Washington 20016-2139
Gas station Shell 0.31 mi ~7 min
4900 Wisconsin Avenue Northwest, Washington
Gas station Exxon 0.38 mi ~8 min
4244 Wisconsin Avenue Northwest, Washington 20016
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 Case Manager/Care Coordinator covers
A person who provides case management services and assists an individual in gaining access to needed medical, social, educational, and/or other services. The person has the ability to provide an assessment and review of completed plan of care on a periodic basis. This person is also able to take collaborative action to coordinate the services with other providers and monitor the enrollee's progress toward the cost-effective achievement of objectives specified in the plan of care. Credentials may vary from an experience in the fields of psychology, social work, rehabilitation, nursing or a closely related human service field, to a related Assoc of Arts Degree or to nursing credentials. Some states may require certification in case management. NUCC Health Care Provider Taxonomy, code 171M00000X
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 | |
|---|---|---|---|---|
| 171M00000X | Case Manager/Care Coordinator | — | DC | primary |
| 106S00000X | Behavior Technician | — | PA | |
| 171M00000X | Case Manager/Care Coordinator | — | — | |
| 251S00000X | Community/Behavioral Health Agency | — | — |
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 | 1003595315 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jul 13, 2023 |
| Last updated | Oct 13, 2023 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Male |
| Practice address |
4530 WISCONSIN AVE NW Washington, DC 20016 (202) 450-1429 Fax (703) 483-9928 |
| Mailing address |
5209 MORRIS AVE APT 102 Suitland, MD 20746 |
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 | 9 | 5 | 3 | 1 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 1 | 9 | 1 | 3 | 2 |
Sum = 45 · next multiple of 10 = 50 · 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.