Geraldine Lim, D.D.S.
Geraldine Lim, D.D.S. is a provider specialising in Dentist in Oakland, CA, registered under NPI 1003085986.
Getting there
Here is what surrounds this office in Oakland, based on OpenStreetMap data collected Sep 4, 2026. Parking is available about 488 ft away. The nearest transit stop is 0.32 mi away, served by Park Boulevard & Greenwood Avenue. If you arrive early, there is a coffee shop 330 ft away.
Getting here and what is nearby
Parking 64 ft ~1 min
Parking 133 ft ~1 min
Transit Park Boulevard & Glenfield Avenue 228 ft ~1 min
Restaurant Pastino's Pasta & Pizza 234 ft ~1 min
4207 Park Boulevard, 94602
Transit 4135 Park Boulevard 282 ft ~2 min
Restaurant Sushi Park 248 ft ~1 min
4209 Park Boulevard, Oakland 94602
Tu-Th 17:00-21:30; Fr 11:30-14:30, 17:00-21:30; Su 12:00-21:30
Coffee Savemore Cafe 311 ft ~2 min
Mo-Su,PH 08:00-22:00
Coffee Ultimate Grounds 330 ft ~2 min
4225 Park Boulevard, 94602
Mo-Fr 06:30-16:00; Sa 07:00-16:00; Su 07:00-15:00
Convenience Savemore Market 309 ft ~2 min
Restaurant Marzano 297 ft ~2 min
4214 Park Blvd, 94602
Mo-Sa 17:00-21:30; Su 17:00-21:00
Parking 488 ft ~2 min
Gas station Park Boulevard 76 0.27 mi ~6 min
4500 Park Boulevard
Transit Park Boulevard & Greenwood Avenue 0.32 mi ~7 min
3824 Park Boulevard, Oakland 94602
Convenience 7 Seas Food & Liquor 0.45 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 |
|---|---|---|
| 43712 | CA | Dentist primary |
This provider holds licence 43712 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 - Oral Surgery
- PAC ID
- 2466636410
- Enrollment ID
- I20150609000590
Medicare enrolment is recorded as approved under the provider type Practitioner - Oral Surgery. 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 Dentist covers
A dentist is a person qualified by a doctorate in dental surgery (D.D.S.) or dental medicine (D.M.D.), licensed by the state to practice dentistry, and practicing within the scope of that license. There is no difference between the two degrees: dentists who have a DMD or DDS have the same education. Universities have the prerogative to determine what degree is awarded. Both degrees use the same curriculum requirements set by the American Dental Association's Commission on Dental Accreditation. Generally, three or more years of undergraduate education plus four years of dental school is required to graduate and become a general dentist. State licensing boards accept either degree as equivalent, and both degrees allow licensed individuals to practice the same scope of general dentistry. Additional post-graduate training is required to become a dental specialist. NUCC Health Care Provider Taxonomy, code 122300000X
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 | 1003085986 valid check digit |
|---|---|
| Entity type | Individual (NPI-1) |
| Enumeration date | Feb 26, 2008 |
| Last updated | Feb 26, 2008 |
| Status | Active |
| Sole proprietor | No |
| Gender | Female |
| Credential | D.D.S. |
| Practice address |
4174 PARK BLVD Oakland, CA 94602 (510) 530-7000 Fax (510) 530-7077 |
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 | 8 | 5 | 9 | 8 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Doubled? | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 | — | ×2 |
| Value | 8 | 0 | 8 | 8 | 0 | 2 | 0 | 0 | 3 | 0 | 8 | 1 | 9 | 7 |
Sum = 54 · next multiple of 10 = 60 · check digit = 6 · actual last digit = 6
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.