Daniel Situ, O.D.
Daniel Situ, O.D. is a provider specialising in Optometrist in San Francisco, CA, registered under NPI 1003265877.
Getting there
Here is what surrounds this office in San Francisco, based on OpenStreetMap data collected Sep 15, 2026. Parking is available about 0.32 mi away at The White House Garage. The nearest transit stop is 0.29 mi away, served by Salesforce Transit Center Bay 5. A pharmacy sits 0.48 mi from the entrance (Four-Fifty Sutter Pharmacy), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 310 ft away.
Getting here and what is nearby
Restaurant Subway 89 ft ~1 min
200 Pine Street, San Francisco 94104
Mo-Fr 09:00-18:00
Restaurant Wayfare Tavern 112 ft ~1 min
201 Pine Street
Coffee The Wild Fox 152 ft ~1 min
Restaurant Locali Mediterranean 154 ft ~1 min
Coffee Starbucks 250 ft ~1 min
295 California Street, San Francisco 94111
Mo-Fr 06:00-16:00
Coffee Philz Coffee 310 ft ~2 min
Convenience 7-Eleven 426 ft ~2 min
Convenience Russell’s 700 ft ~3 min
333 Market Street, San Francisco
Pharmacy Walgreens 808 ft ~4 min
300 Montgomery Street, San Francisco 94104
Mo-Fr 09:00-13:30,14:00-19:00
Hotel The Jay, Autograph Collection 905 ft ~4 min
Hotel Omni San Francisco Hotel 0.20 mi ~4 min
Hotel Club Quarters Hotel, San Francisco, Embarcadero 0.20 mi ~5 min
Pharmacy Walgreens 0.20 mi ~4 min
456 Mission Street, San Francisco 94105
Mo-Fr 09:00-13:30,14:00-19:00
Parking 0.21 mi ~5 min
19:00-07:00
Convenience Bay Food Mini Market 0.22 mi ~5 min
578 Market Street
Transit Salesforce Transit Center Bay 9 0.28 mi ~6 min
Transit Salesforce Transit Center Bay 7 0.29 mi ~6 min
Transit Salesforce Transit Center Bay 5 0.29 mi ~6 min
Parking Palace Garage 0.29 mi ~6 min
111;125;127 Stevenson Street
Parking The White House Garage 0.32 mi ~7 min
Grocery Safeway 0.32 mi ~7 min
145 Jackson Street, San Francisco 94111
06:00-21:00
Grocery Ha Mini Mart 0.39 mi ~8 min
Pharmacy Four-Fifty Sutter Pharmacy 0.48 mi ~10 min
Grocery Woodlands Market 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
| Licence | State | Specialty |
|---|---|---|
| OPT33422 | CA | Optometrist primary |
This provider holds licence OPT33422 issued in CA. A licence number in NPPES reflects what was filed at registration — it does not confirm the licence is still active today.
- Status
- Approved
- Provider type
- Practitioner - Optometry
- PAC ID
- 6103114673
- Enrollment ID
- I20161017000793
Medicare enrolment is recorded as approved under the provider type Practitioner - Optometry. 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 Optometrist covers
Doctors of optometry (ODs) are the primary health care professionals for the eye. Optometrists examine, diagnose, treat, and manage diseases, injuries, and disorders of the visual system, the eye, and associated structures as well as identify related systemic conditions affecting the eye. An optometrist has completed pre-professional undergraduate education in a college or university and four years of professional education at a college of optometry, leading to the doctor of optometry (O.D.) degree. Some optometrists complete an optional residency in a specific area of practice. Optometrists are eye health care professionals state-licensed to diagnose and treat diseases and disorders of the eye and visual system. NUCC Health Care Provider Taxonomy, code 152W00000X
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 | 1003265877 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Jun 12, 2016 |
| Last updated | Oct 4, 2016 |
| Status | Active |
| Sole proprietor | No |
| Gender | Male |
| Credential | O.D. |
| Practice address |
100 BATTERY ST San Francisco, CA 94111 (415) 399-1573 |
| Mailing address |
2508 MISSION ST San Francisco, CA 94110 |
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 | 6 | 5 | 8 | 7 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 6 | 1 | 8 | 5 |
Sum = 53 · next multiple of 10 = 60 · check digit = 7 · actual last digit = 7
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.