Gillian Hooker, PH.D., SC.M.
Gillian Hooker, PH.D., SC.M. is a Genetic Counselor (M.S.) in Washington, DC, registered under NPI 1003054701.
Getting there
Here is what surrounds this office in Washington, based on OpenStreetMap data collected Sep 2, 2026. Parking is available about 537 ft away. There is EV charging 437 ft from the office (Tesla Supercharger) — useful if you are driving in from out of town. The nearest transit stop is 643 ft away, served by Wisconsin Ave NW at 35th St NW. A pharmacy sits 0.30 mi from the entrance (CVS Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.26 mi away.
Getting here and what is nearby
Parking 374 ft ~2 min
Parking 376 ft ~2 min
Grocery Safeway 372 ft ~2 min
1855 Wisconsin Avenue Northwest, Washington 20007
24/7
EV charging Tesla Supercharger 437 ft ~2 min
Grocery Trader Joe's 420 ft ~2 min
2101 Wisconsin Avenue Northwest, Washington 20007
Mo-Su 08:00-21:00
Transit Wisconsin Ave NW at 35th St NW 527 ft ~2 min
Parking 537 ft ~3 min
Transit Wisconsin Ave NW at 34th St NW 573 ft ~3 min
Transit Wisconsin Ave NW at 35th St NW 643 ft ~3 min
Restaurant Cafe Divan 636 ft ~3 min
1834 Wisconsin Avenue Northwest, Washington 20007
Mo,We-Fr 11:00-22:00; Sa-Su 09:00-22:00
Coffee Caspian Crust 697 ft ~3 min
1826 Wisconsin Avenue Northwest, Washington 20007-2301
Mo-Su 07:00-19:00
Coffee Starbucks 799 ft ~4 min
1810 Wisconsin Avenue Northwest, Washington 20007
Mo-Fr 05:30-20:00; Sa,Su 06:00-18:00
Restaurant Bistro Lepic 930 ft ~4 min
1736 Wisconsin Avenue Northwest, Washington 20007-2313
Restaurant Shanghai Lounge 941 ft ~4 min
1734 Wisconsin Avenue Northwest, Washington 20007-2313
Mo,We-Sa 11:00-21:30; Tu off; Su 11:30-21:30
Coffee Breadsoda 0.26 mi ~6 min
2233 Wisconsin Avenue Northwest, Washington 20007-4104
Pharmacy CVS Pharmacy 0.30 mi ~6 min
Grocery Whole Foods Market 0.33 mi ~7 min
2323 Wisconsin Avenue Northwest, Washington 20007
Mo-Su 08:00-22:00
Convenience Le Petite Corner Store 0.39 mi ~8 min
1643 34th Street Northwest
Convenience Glover Park Market 0.42 mi ~9 min
2411 37th Street Northwest
Convenience Washingtonian 0.46 mi ~10 min
Gas station Shell 0.47 mi ~10 min
1576 Wisconsin Avenue Northwest, Washington 20007
Gas station Amoco 0.47 mi ~10 min
Gas station Georgetown Exxon 0.48 mi ~10 min
1601 Wisconsin Avenue Northwest, Washington 20007
Mo-Su 06:00-23:00
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 Genetic Counselor, MS covers
A masters trained health care provider who collects and interprets genetic family histories; assesses the risk of disease occurrence or recurrence; identifies interventions to manage or ameliorate disease risk; educates about inheritance, testing, management, prevention, ethical issues, resources, and research; and counsels to promote informed choices and adaptation. Certification was established in 1993 by the American Board of Genetic Counseling and prior to that by the American Board of Medical Genetics. Requirements for experience, licensure, and job responsibilities vary among the states. NUCC Health Care Provider Taxonomy, code 170300000X
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 | 1003054701 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Feb 3, 2009 |
| Last updated | Feb 3, 2009 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | PH.D., SC.M. |
| Practice address |
3300 WHITEHAVEN ST NW Washington, DC 20007 (202) 687-7840 Fax (202) 687-0305 |
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 | 0 | 5 | 4 | 7 | 0 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 0 | 5 | 8 | 7 | 0 |
Sum = 49 · next multiple of 10 = 50 · check digit = 1 · actual last digit = 1
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.