Emma Shak, M.D.
Emma Shak, M.D. is a provider specialising in Student in an Organized Health Care Education/Training Program in San Francisco, CA, registered under NPI 1003259698. 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 3, 2026. Parking is available about 635 ft away. The nearest transit stop is 311 ft away, served by Parnassus Avenue & Hillway Avenue. A pharmacy sits 0.29 mi from the entrance (Walgreens), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 0.32 mi away.
Getting here and what is nearby
Transit 513 Parnassus Avenue 245 ft ~1 min
Transit Parnassus Avenue & Hillway Avenue 264 ft ~2 min
Transit Parnassus Avenue & Hillway Avenue 311 ft ~2 min
Restaurant Panda Express 368 ft ~2 min
500 Parnassus Avenue, San Francisco 94143
Mo-Fr 09:30-20:00, Sa-Su 10:30-17:00
Coffee Starbucks 489 ft ~2 min
350 Parnassus Avenue, San Francisco 94117
Mo-We 05:30-17:30; Th-Fr 05:00-18:00; Sa 06:00-17:00; Su 07:00-15:00
Parking Main Parking Garage 477 ft ~2 min
Parking 458 ft ~2 min
Restaurant Subway 457 ft ~2 min
Mo-Fr 07:30-21:00; Sa-Su 08:00-20:00
Parking 635 ft ~3 min
Restaurant Pizzetta Napoletana 972 ft ~4 min
775 Frederick Street, San Francisco 94117
Coffee Yo También Cantina 0.21 mi ~5 min
205 Hugo Street, San Francisco 94122
Mo-Tu off; We-Su 10:00-15:00
Convenience UC Market 0.21 mi ~5 min
1251 3rd Avenue, San Francisco 94122
Mo-Fr 09:00-23:00; Sa-Su 09:00-24:00
Convenience Sunny Country Foods 0.27 mi ~6 min
1101 Stanyan Street, San Francisco 94117
Pharmacy Walgreens 0.29 mi ~6 min
199 Parnassus Avenue, San Francisco 94117
Coffee Golden Bear Trading Company 0.32 mi ~7 min
1401 6th Avenue
Convenience Parkview Market 0.32 mi ~7 min
501 Frederick Street, San Francisco 94117
Gas station Shell 0.43 mi ~9 min
601 Lincoln Way
Grocery Luke's Local 0.45 mi ~10 min
Grocery Luke's Local 0.49 mi ~10 min
1266 9th Avenue
Grocery Whole Foods Market 0.51 mi ~11 min
690 Stanyan Street, San Francisco 94117
Mo-Su 08:00-22:00
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.
- Status
- Approved
- Provider type
- Practitioner - Internal Medicine
- PAC ID
- 1759675945
- Enrollment ID
- I20160810002953
Medicare enrolment is recorded as approved under the provider type Practitioner - Internal Medicine. Being enrolled means the provider can bill Medicare; it does not tell you whether they are currently accepting new Medicare patients. Call the office to confirm.
What Student in an Organized Health Care Education/Training Program covers
An individual who is enrolled in an organized health care education/training program leading to a degree, certification, registration, and/or licensure to provide health care. NUCC Health Care Provider Taxonomy, code 390200000X
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 | 1003259698 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Apr 12, 2013 |
| Last updated | Aug 4, 2015 |
| Status | Active |
| Sole proprietor | Yes |
| Gender | Female |
| Credential | M.D. |
| Practice address |
505 PARNASSUS AVE San Francisco, CA 94143 (415) 476-1528 |
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 | 2 | 5 | 9 | 6 | 9 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 5 | 9 | 6 | 9 |
Sum = 62 · next multiple of 10 = 70 · 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.