Gillian Williams Luke, RN
Gillian Williams Luke, RN is a Registered Nurse in Largo, MD, registered under NPI 1003134768.
Getting there
Here is what surrounds this office in Largo, based on OpenStreetMap data collected Sep 7, 2026. Parking is available about 0.27 mi away. The nearest transit stop is 517 ft away, served by Lottsford Rd at Zachery St.
Getting here and what is nearby
Transit Lottsford Rd at Grand Bl 171 ft ~1 min
Transit Lottsford Rd at Grand Bl 237 ft ~1 min
Transit Lottsford Rd at Zachery St 517 ft ~2 min
Parking Downtown Largo Metro Station Parking - South Garage 771 ft ~3 min
Parking Downtown Largo Metro Station Parking - North Garage 1,002 ft ~4 min
Grocery Shoppers Food & Pharmacy 0.25 mi ~6 min
Parking 0.27 mi ~6 min
9450 Healthcare Way, Upper Marlboro 20774
Restaurant McDonald's 0.31 mi ~7 min
1030 Largo Center Drive, Upper Marlboro 20774
05:00-01:00
Restaurant Carolina Kitchen 0.34 mi ~7 min
800 Shoppers Way
Convenience Sunoco 0.36 mi ~8 min
1020 Largo Center Drive, Upper Marlboro 20774
Hotel Comfort Inn 0.38 mi ~8 min
Hotel Hotel Largo 0.38 mi ~8 min
Restaurant Taco Bell 0.40 mi ~9 min
Hotel Staybridge Suites 0.49 mi ~10 min
9401 Lottsford Road, Upper Marlboro 20774
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 |
|---|---|---|
| 185721 | MD | Registered Nurse primary |
This provider holds licence 185721 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 | 1003134768 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | May 5, 2010 |
| Last updated | May 5, 2010 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | RN |
| Practice address |
9475 LOTTSFORD RD SUITE 250 Largo, MD 20774 (301) 636-6504 Fax (301) 636-6509 |
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 | 3 | 4 | 7 | 6 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 2 | 3 | 8 | 7 | 3 |
Sum = 52 · next multiple of 10 = 60 · check digit = 8 · actual last digit = 8
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.