Gemma Cohen, RN
Gemma Cohen, RN is a Registered Nurse in San Francisco, CA, registered under NPI 1003402942. 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 San Francisco, based on OpenStreetMap data collected Sep 24, 2026. Parking is available about 0.50 mi away at 1635 Divisadero Garage. There is EV charging 0.40 mi from the office (San Francisco, CA - Geary Boulevard Supercharger) — useful if you are driving in from out of town. The nearest transit stop is 536 ft away, served by Turk Street & Baker Street. A pharmacy sits 0.35 mi from the entrance (Walgreens), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.23 mi away.
Getting here and what is nearby
Convenience McBaker Market 100 ft ~1 min
1800 McAllister Street
Transit McAllister Street & Baker Street 157 ft ~1 min
Restaurant Early to Rise 173 ft ~1 min
1801 McAllister Street, San Francisco 94115
Mo-Fr 08:00-13:30; Sa-Su 08:00-14:30
Transit McAllister Street & Baker Street 200 ft ~1 min
Coffee Matching Half Cafe 224 ft ~1 min
Parking 363 ft ~2 min
Transit Turk Street & Baker Street 536 ft ~3 min
Convenience NOPA Corner Market 682 ft ~3 min
Parking 737 ft ~3 min
Convenience Transfer Market 1,028 ft ~4 min
Restaurant Kung Food 987 ft ~4 min
Restaurant Brenda's Meat & Three 989 ft ~4 min
919 Divisadero Street, San Francisco 94115
Mo-Su 08:00-21:00
Grocery Green Earth 0.21 mi ~5 min
Coffee Boba Guys 0.22 mi ~5 min
836 Divisadero Street
Coffee Eddie's Cafe 0.23 mi ~5 min
Grocery Lucky 0.24 mi ~5 min
Grocery Bi-Rite Market 0.32 mi ~7 min
Pharmacy Walgreens 0.35 mi ~7 min
1363 Divisadero Street
EV charging 0.36 mi ~8 min
Gas station 76 0.36 mi ~8 min
Gas station Chevron 0.37 mi ~8 min
Gas station Arco 0.37 mi ~8 min
EV charging San Francisco, CA - Geary Boulevard Supercharger 0.40 mi ~9 min
Hotel Metro Hotel 0.44 mi ~9 min
Hotel Chateau Tivoli Bed and Breakfeast 0.47 mi ~10 min
Parking 1635 Divisadero Garage 0.50 mi ~11 min
2451 Sutter Street
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 |
|---|---|---|
| 95111520 | CA | Registered Nurse primary |
This provider holds licence 95111520 issued in CA. 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 | 1003402942 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Dec 15, 2020 |
| Last updated | Dec 15, 2020 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Credential | RN |
| Practice address |
721 BAKER ST San Francisco, CA 94115 (641) 919-7259 |
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 | 0 | 2 | 9 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 8 | 0 | 4 | 9 | 8 |
Sum = 58 · next multiple of 10 = 60 · check digit = 2 · actual last digit = 2
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.