Esther Thach
Esther Thach is a provider specialising in Case Manager/Care Coordinator in San Francisco, CA, registered under NPI 1003000332. 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 Aug 27, 2026. Parking is available about 0.25 mi away. There is EV charging 0.44 mi from the office (Electrify America) — useful if you are driving in from out of town. The nearest transit stop is 702 ft away, served by Sunset Boulevard & Vicente Street. A pharmacy sits 0.39 mi from the entrance (Walgreens), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.42 mi away.
Getting here and what is nearby
Transit Sunset Boulevard & Wawona Street 359 ft ~2 min
Transit Sunset Boulevard & Wawona Street 454 ft ~2 min
Transit Sunset Boulevard & Vicente Street 702 ft ~3 min
Parking 673 ft ~3 min
Grocery Sunset Super 728 ft ~3 min
2801 Vicente Street, San Francisco 94116
Parking 0.25 mi ~5 min
Parking 0.25 mi ~6 min
Restaurant Old Mandarin Islamic Restaurant 0.31 mi ~7 min
3132 Vicente Street
Mo,We,Fr-Su 11:30-21:00; Tu,Th 17:00-21:00
EV charging 0.37 mi ~8 min
Coffee Peet's Coffee 0.39 mi ~8 min
1509 Sloat Boulevard, San Francisco 94132
Hotel Mirage Inn & Suites 0.39 mi ~8 min
Pharmacy Walgreens 0.39 mi ~8 min
3001 Taraval Street, San Francisco 94116
Mo-Fr 07:30-22:00; Sa,Su 08:00-22:00
Restaurant Ono Hawaiian BBQ 0.39 mi ~8 min
1501-A Sloat Boulevard, San Francisco 94132
Mo-Th,Su 11:00-21:00; Fr-Sa 11:00-21:30
Restaurant Wingstop 0.39 mi ~8 min
1507 Sloat Boulevard, San Francisco 94132
Coffee Andytown Coffee Roasters 0.41 mi ~9 min
3016 Taraval Street, San Francisco 94116
Convenience Sea Bee Liquors 0.41 mi ~9 min
Coffee Java Beach Café 0.42 mi ~9 min
Grocery Lucky 0.42 mi ~9 min
EV charging Electrify America 0.44 mi ~9 min
Hotel Ocean Park Motel 0.46 mi ~10 min
Convenience 7-Eleven 0.50 mi ~11 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 Case Manager/Care Coordinator covers
A person who provides case management services and assists an individual in gaining access to needed medical, social, educational, and/or other services. The person has the ability to provide an assessment and review of completed plan of care on a periodic basis. This person is also able to take collaborative action to coordinate the services with other providers and monitor the enrollee's progress toward the cost-effective achievement of objectives specified in the plan of care. Credentials may vary from an experience in the fields of psychology, social work, rehabilitation, nursing or a closely related human service field, to a related Assoc of Arts Degree or to nursing credentials. Some states may require certification in case management. NUCC Health Care Provider Taxonomy, code 171M00000X
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 | 1003000332 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Aug 29, 2007 |
| Last updated | Aug 29, 2007 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Practice address |
2690 38TH AVE San Francisco, CA 94116 (415) 759-8536 |
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 | 0 | 0 | 3 | 3 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 0 | 0 | 0 | 3 | 6 |
Sum = 38 · next multiple of 10 = 40 · 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.