Catherine Castro
Catherine Castro is a Registered Nurse in Washington, DC, registered under NPI 1003674060. 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 13, 2026. Parking is available about 443 ft away. There is EV charging 0.38 mi from the office — useful if you are driving in from out of town. The nearest transit stop is 696 ft away, served by Prospect St NW at 36th St NW. A pharmacy sits 0.37 mi from the entrance (CVS Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.27 mi away.
Getting here and what is nearby
Parking 273 ft ~2 min
Coffee Coffee Republic 307 ft ~2 min
Parking 390 ft ~2 min
Transit 37th St NW at O St NW 400 ft ~2 min
Parking 443 ft ~2 min
Restaurant Call Your Mother 421 ft ~2 min
Convenience Wisemillers Grocery & Deli 506 ft ~2 min
Transit 35th St NW at N St NW 561 ft ~3 min
Restaurant Fitzgerald's DC 606 ft ~3 min
1232 36th Street Northwest, Washington 20007-2627
Restaurant 1789 633 ft ~3 min
Transit Prospect St NW at 36th St NW 696 ft ~3 min
Coffee Porchetta District Sandwiches & Co. 0.20 mi ~4 min
Convenience Vital Vittles 0.26 mi ~6 min
Coffee District Doughnut 0.27 mi ~6 min
3327 Cady's Alley Northwest, Washington 20007
Tu-Fr 08:00-15:00; Sa-Su 09:00-17:00; Mo off
Convenience Le Petite Corner Store 0.30 mi ~7 min
1643 34th Street Northwest
Gas station Shell 0.34 mi ~7 min
1576 Wisconsin Avenue Northwest, Washington 20007
Gas station Georgetown Exxon 0.36 mi ~8 min
1601 Wisconsin Avenue Northwest, Washington 20007
Mo-Su 06:00-23:00
Hotel The Georgetown Inn 0.37 mi ~8 min
1310 Wisconsin Avenue Northwest, Washington 20007
Pharmacy CVS Pharmacy 0.37 mi ~8 min
EV charging 0.38 mi ~8 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 |
|---|---|---|
| R245118 | MD | Registered Nurse primary |
This provider holds licence R245118 issued in MD. 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 Registered Nurse covers
(1) A registered nurse is a person qualified by graduation from an accredited nursing school (depending upon schooling, a registered nurse may receive either a diploma from a hospital program, an associate degree in nursing (A.D.N.) or a Bachelor of Science degree in nursing (B.S.N.), who is licensed or certified by the state, and is practicing within the scope of that license or certification. R.N.'s assist patient in recovering and maintaining their physical or mental health. They assist physicians during treatments and examinations and administer medications. (2) A provider who is trained and educated in a formal nursing education program at an accredited school of nursing, passes a national certification examination, and is licensed by the state to practice nursing. The individual provides nursing services to patients or clients in areas such as health promotion, disease prevention, acute and chronic care and restoration and maintenance of health across the life span. NUCC Health Care Provider Taxonomy, code 163W00000X
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 | 1003674060 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Mar 13, 2024 |
| Last updated | Mar 13, 2024 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Practice address |
3709 O STREET NW Washington, DC 20057 (240) 888-8667 |
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 | 6 | 7 | 4 | 0 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 3 | 7 | 8 | 0 | 3 |
Sum = 50 · next multiple of 10 = 50 · check digit = 0 · actual last digit = 0
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.