Marva Austin
Marva Austin is a Specialist in San Francisco, CA, registered under NPI 1003526872. 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 15, 2026. Parking is available about 0.23 mi away at UC Law San Francisco Parking Garage. There is EV charging 0.48 mi from the office (Tesla Supercharger) — useful if you are driving in from out of town. The nearest transit stop is 259 ft away, served by 7th Street & Market Street. If you arrive early, there is a coffee shop 0.22 mi away.
Getting here and what is nearby
Transit 7th Street & Market Street 160 ft ~1 min
Transit Market Street & 7th Street 176 ft ~1 min
Hotel YOTEL San Francisco 196 ft ~1 min
Hotel Budget Inn 223 ft ~1 min
Transit 7th Street & Market Street 259 ft ~1 min
Convenience Plaza Snacks & Deli 334 ft ~2 min
77 McAllister Street, San Francisco 94102
Hotel San Francisco Proper Hotel 297 ft ~2 min
Restaurant La Cuisine Cafe 300 ft ~2 min
Convenience Bay Food Market 396 ft ~2 min
1073 Market Street
Restaurant Taqueria Castillo 415 ft ~2 min
86 McAllister Street
Restaurant Thai Curry 441 ft ~2 min
Parking 686 ft ~3 min
Mo-Su 05:30-23:30
Coffee Chai Bar by David Rio 846 ft ~4 min
1019 Market Street, San Francisco 94103
Mo-Fr 07:30-15:30; Sa 09:00-14:00; Su off
Coffee Poets Cafe 907 ft ~4 min
Convenience Habibi Market 1,004 ft ~4 min
28 6th Street
Parking 1,013 ft ~4 min
175 Turk Street
Coffee Fluid Cooperative Cafe 0.22 mi ~5 min
EV charging EVgo 0.23 mi ~5 min
EV charging EVgo 0.23 mi ~5 min
Parking UC Law San Francisco Parking Garage 0.23 mi ~5 min
376 Larkin Street, San Francisco 94102
Grocery Harvest Urban Market 0.26 mi ~6 min
Grocery The Market 0.33 mi ~7 min
1355 Market Street, San Francisco 94103
Mo-Fr 08:00-20:00
EV charging Tesla Supercharger 0.48 mi ~10 min
Gas station Chevron 0.48 mi ~10 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 Specialist covers
An individual educated and trained in an applied knowledge discipline used in the performance of work at a level requiring knowledge and skills beyond or apart from that provided by a general education or liberal arts degree. NUCC Health Care Provider Taxonomy, code 174400000X
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 | 1003526872 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Dec 1, 2022 |
| Last updated | Dec 1, 2022 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Practice address |
1111 MARKET ST San Francisco, CA 94103 (415) 863-3883 |
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 | 5 | 2 | 6 | 8 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 1 | 2 | 3 | 8 | 5 |
Sum = 48 · next multiple of 10 = 50 · 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.