Martha Brown
Martha Brown is a provider specialising in Social Worker in Harrisburg, PA, registered under NPI 1003451725. 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 Harrisburg, based on OpenStreetMap data collected Sep 27, 2026. Parking is available about 0.21 mi away. The nearest transit stop is 0.43 mi away, served by Market St & 19th St.
Getting here and what is nearby
Parking 338 ft ~2 min
Parking 894 ft ~4 min
Parking 0.21 mi ~5 min
Restaurant Tacos Mi Tierra 0.22 mi ~5 min
1416 Derry Street, Harrisburg 17104
Restaurant Anafe Restaurant 0.22 mi ~5 min
1222 Mulberry Street, Harrisburg 17104
Convenience La Estrella Grocery 0.25 mi ~5 min
Restaurant Mariama's African & Jamaican Cuisine 0.35 mi ~7 min
145 South Cameron Street, Harrisburg 17101
Mo-Th 11:00-21:00; Su 11:00-19:30; Fr-Sa 11:00-22:00
Convenience Polanco's Grocery 0.36 mi ~8 min
Transit Market St & 19th St 0.41 mi ~9 min
Convenience Madera Brothers Mini Market 0.41 mi ~9 min
Gas station Sunoco 0.41 mi ~9 min
Transit Market St & 19th St 0.43 mi ~9 min
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 Social Worker covers
A social worker is a person who is qualified by a Social Work degree, and licensed, certified or registered by the state as a social worker to practice within the scope of that license. A social worker provides assistance and counseling to clients and their families who are dealing with social, emotional and environmental problems. Social work services may be rendered to individuals, families, groups, and the public. NUCC Health Care Provider Taxonomy, code 104100000X
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 | 1003451725 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Nov 18, 2019 |
| Last updated | Dec 10, 2020 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Practice address |
1414 ZARKER ST Harrisburg, PA 17104 (717) 346-5056 |
| Mailing address |
40 DILWORTH RD Millersville, PA 17551 |
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 | 4 | 5 | 1 | 7 | 2 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 8 | 5 | 2 | 7 | 4 |
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.