Ann Brown, LICSW
Ann Brown, LICSW is a provider specialising in Clinical Social Worker in Washington, DC, registered under NPI 1003142043. 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 Sep 7, 2026. Parking is available about 0.43 mi away at Colonial Parking. There is EV charging 0.35 mi from the office (ChargePoint) — useful if you are driving in from out of town. The nearest transit stop is 0.23 mi away, served by New Hampshire Ave NW at 24th St NW. A pharmacy sits 0.48 mi from the entrance (CVS Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.24 mi away.
Getting here and what is nearby
Transit New Hampshire Ave NW at Virginia Ave NW 106 ft ~1 min
Hotel The Watergate Hotel 463 ft ~2 min
Coffee Tazza Cafe 562 ft ~3 min
600 New Hampshire Avenue Northwest
Mo-Fr 08:00-20:00; Sa 10:00-20:00; Su 10:00-18:00
Hotel Arc Hotel Washington DC 624 ft ~3 min
824 New Hampshire Avenue Northwest, Washington 20037
Convenience Washingtonian 699 ft ~3 min
2643 Virginia Avenue Northwest, Washington
Hotel Residence Inn 664 ft ~3 min
801 New Hampshire Avenue Northwest, Washington 20037-2304
Gas station Sunoco 747 ft ~3 min
Gas station Valero 862 ft ~4 min
2708 Virginia Avenue Northwest, Washington 20037
Restaurant Matera 942 ft ~4 min
924 25th Street Northwest, 20037
Mo 07:00-10:30; Tu-Fr 07:00-10:30, 16:00-22:00; Sa 08:00-11:00, 16:00-22:00; Su 08:00-11:00
Coffee South Block 0.21 mi ~5 min
Transit 23rd St NW at G St NW 0.22 mi ~5 min
Restaurant Sizzling Express 0.22 mi ~5 min
Transit New Hampshire Ave NW at 24th St NW 0.23 mi ~5 min
Coffee Starbucks 0.24 mi ~5 min
Convenience Market Of Columbia Plaza 0.24 mi ~5 min
516 23rd Street Northwest
Restaurant Subway 0.24 mi ~5 min
900 23rd Street Northwest, Washington 20037
Mo-Fr 06:30-23:00, Sa-Su 07:30-23:00
Convenience Marvelous Market 0.31 mi ~7 min
2424 Pennsylvania Avenue Northwest
Grocery Whole Foods Market 0.31 mi ~7 min
2201 I Street Northwest, Washington 20037
Mo-Su 07:00-22:00
Parking Colonial Parking - Coal House 0.33 mi ~7 min
Mo-Th 06:00-12:00; Fr 06:00-02:00; Sa 17:00-02:00; Su 17:00-24:00
EV charging ChargePoint 0.35 mi ~8 min
Grocery Trader Joe's 0.37 mi ~8 min
1101 25th Street Northwest, Washington 20037
08:00-22:00
Parking Colonial Parking 0.39 mi ~8 min
Mo-Su 07:00-24:00
Parking Colonial Parking 0.43 mi ~9 min
Mo-Fr 07:00-19:00
Pharmacy CVS Pharmacy 0.43 mi ~9 min
Pharmacy CVS Pharmacy 0.47 mi ~10 min
Pharmacy CVS Pharmacy 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 |
|---|---|---|
| LC50078658 | DC | Clinical Social Worker primary |
This provider holds licence LC50078658 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 Clinical covers
A social worker who holds a master's or doctoral degree in social work from an accredited school of social work in addition to at least two years of post-master's supervised experience in a clinical setting. The social worker must be licensed, certified, or registered at the clinical level in the jurisdiction of practice. A clinical social worker provides direct services, including interventions focused on interpersonal interactions, intrapsychic dynamics, and life management issues. Clinical social work services are based on bio-psychosocial perspectives. Services consist of assessment, diagnosis, treatment (including psychotherapy and counseling), client-centered advocacy, consultation, evaluation, and prevention of mental illness, emotional, or behavioral disturbances. NUCC Health Care Provider Taxonomy, code 1041C0700X
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 | 1003142043 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Oct 27, 2009 |
| Last updated | Oct 27, 2009 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Credential | LICSW |
| Practice address |
2510 VIRGINIA AVE NW Washington, DC 20037 (202) 965-5755 |
| Mailing address |
2510 VIRGINIA AVENUE NW Washington, DC 20037 |
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 | 1 | 4 | 2 | 0 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 2 | 4 | 4 | 0 | 8 |
Sum = 47 · next multiple of 10 = 50 · check digit = 3 · actual last digit = 3
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.