I. GERODIAS, M. PEREA-CORKISH, AND E. WANG, DDS, INC.
I. GERODIAS, M. PEREA-CORKISH, AND E. WANG, DDS, INC. is an organization registered with the National Plan and Provider Enumeration System (NPPES) under NPI 1003252941, based in San Francisco, CA. It is classified under Pediatric Dentistry.
Getting there
Here is what surrounds this office in San Francisco, based on OpenStreetMap data collected Sep 14, 2026. Parking is available about 0.36 mi away. There is EV charging 0.48 mi from the office (Tesla Destination Charger) — useful if you are driving in from out of town. The nearest transit stop is 413 ft away, served by Sacramento Street & Franklin Street. A pharmacy sits 0.41 mi from the entrance (Walgreens), which helps if you leave with a prescription. If you arrive early, there is a coffee shop 605 ft away.
Getting here and what is nearby
Grocery Whole Foods Market 221 ft ~1 min
1765 California Street, San Francisco 94109
Mo-Su 08:00-22:00
Coffee Starbucks 258 ft ~1 min
Gas station Standard 338 ft ~2 min
1501 Van Ness Avenue, San Francisco
Transit Van Ness Avenue & Sacramento Street 350 ft ~2 min
Transit Sacramento Street & Van Ness Avenue 366 ft ~2 min
Transit Sacramento Street & Franklin Street 413 ft ~2 min
Hotel Holiday Inn San Francisco Golden Gateway 408 ft ~2 min
1500 Van Ness Avenue
Coffee Star Bagels 599 ft ~3 min
1475 Polk Street, 94109
Coffee Donuts & Things 605 ft ~3 min
1549 Polk Street
Restaurant Nara Sushi 584 ft ~3 min
1515 Polk Street, San Francisco 94109
Su-Th 17:00-23:00; Fr,Sa 17:00-24:00
Restaurant Ti Piacera 585 ft ~3 min
1507 Polk Street, San Francisco
Restaurant Swan Oyster Depot 589 ft ~3 min
Grocery Golden Farmer Market 617 ft ~3 min
Pharmacy Walgreens 675 ft ~3 min
Pharmacy Franklin Pharmacy 724 ft ~3 min
Convenience Van Ness Liquor Wine & Spirits 812 ft ~4 min
1840 Van Ness Avenue, San Francisco 94109
Hotel 1770 Pine Grove Apts 771 ft ~3 min
1770 Pine Street, 94109
Hotel Palo Alto Hotel 842 ft ~4 min
1661 Sacramento Street
Parking SP+ 0.21 mi ~5 min
1340 Bush Street
Convenience Larkin Corner Market 0.22 mi ~5 min
Convenience Sutter Market 0.26 mi ~6 min
1144 Sutter Street
Grocery Trader Joe's 0.27 mi ~6 min
1095 Hyde Street, San Francisco 94109
Mo-Su 09:00-21:00
Parking 0.28 mi ~6 min
80 Hemlock Street
Parking 0.36 mi ~8 min
1230;1234;1240 Pine Street
Pharmacy Walgreens 0.41 mi ~9 min
2120 Polk Street, San Francisco 94109
EV charging Tesla Destination Charger 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 Pediatric Dentistry covers
An age-defined specialty that provides both primary and comprehensive preventive and therapeutic oral health care for infants and children through adolescence, including those with special health care needs. NUCC Health Care Provider Taxonomy, code 1223P0221X
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-2 identifies an organization — a clinic, hospital, group practice, laboratory, or supplier. Individual clinicians working there hold their own NPI-1 numbers separately, so a bill may reference both.
| NPI | 1003252941 valid check digit |
|---|---|
| Entity type | Organization (NPI-2) |
| Enumeration date | May 20, 2013 |
| Last updated | May 21, 2013 |
| Status | Active |
| Practice address |
1700 CALIFORNIA ST SUITE 200 San Francisco, CA 94109 (415) 441-7766 Fax (415) 441-1919 |
| Other names |
Discovery Pediatric Dentistry Former Legal Name |
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 | 2 | 9 | 4 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 4 | 5 | 4 | 9 | 8 |
Sum = 59 · next multiple of 10 = 60 · check digit = 1 · actual last digit = 1
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.