Allen Sheffield
Allen Sheffield is a provider specialising in Case Manager/Care Coordinator in Washington, DC, registered under NPI 1003504564. This provider registers 2 separate taxonomy codes, which usually means they practise across more than one recognised specialty.
Getting there
Here is what surrounds this office in Washington, based on OpenStreetMap data collected Oct 1, 2026. Parking is available about 455 ft away. The nearest transit stop is 477 ft away, served by Alabama Av SE at Ridge Rd SE. A pharmacy sits 0.32 mi from the entrance (CVS Pharmacy), which helps if you leave with a prescription.
Getting here and what is nearby
Parking 68 ft ~1 min
Parking 375 ft ~2 min
Transit Southern Ave SE at Torque St 462 ft ~2 min
Transit Southern Ave SE at Torque St 468 ft ~2 min
Transit Alabama Av SE at Ridge Rd SE 477 ft ~2 min
Parking 455 ft ~2 min
Convenience Bowen Discount 598 ft ~3 min
4510 Bowen Road Southeast, Washington
Restaurant McDonald's 0.26 mi ~6 min
4777 Marlboro Pike, Capitol Heights 20743
05:00-24:00
Pharmacy CVS Pharmacy 0.32 mi ~7 min
Convenience Night N Day 24-hour Convenience Store 0.44 mi ~9 min
5026 Benning Road Southeast, 20019
Convenience Dennies Market 0.46 mi ~10 min
5000 Benning Road Southeast, Washington
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 2 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 | — | — | primary |
| 3747P1801X | Personal Care Attendant Personal Care Attendant | — | — |
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 | 1003504564 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 24, 2023 |
| Last updated | Jan 30, 2024 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Practice address |
4339 BOWEN RD SE APT 202 Washington, DC 20019 (202) 997-5930 |
| Mailing address |
1460 EASTERN AVE NE Washington, DC 20019 |
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 | 0 | 4 | 5 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 1 | 0 | 8 | 5 | 3 |
Sum = 46 · next multiple of 10 = 50 · check digit = 4 · actual last digit = 4
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.