Robert Lum, D.M.D.
NPI 1578706503 · Dentist · Sunnyvale, CA
Enrolled with Medicare as Practitioner - Dentist · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Lum, D.M.D. is a Dentist provider in Sunnyvale, CA (NPI 1578706503).
Provider details
- NPI number
- 1578706503
- Entity type
- Individual
- Primary specialty
- DentistDental Providers
- Credential
- D.M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- 57989 (CA)
Specialties & taxonomies
Dental Providers
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
17 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
3 documented practice locations
Signals a provider has no public data for (e.g. Medicare claims) are left out of the score entirely — never counted as zero — so providers without that data are not penalized. See the full formula and weights in our methodology.
What this provider prescribes (Medicare Part D)
Top drugs by Medicare Part D claim volume, 2024 · 3 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Amoxicillin | 44 | 35 |
| Ibuprofen | 26 | 22 |
| Chlorhexidine Gluconate | 22 | 18 |
Medicare Part D only. These counts cover prescriptions paid through Medicare Part D in 2024 — they do notinclude cash-pay, commercial-insurance, Medicaid, or Part B–administered drugs, and badly undercount high cash-pay categories (e.g. GLP-1 weight-loss, testosterone, and ED medications). Any drug with 10 or fewer claims is omitted by CMS, and beneficiary counts under 11 are suppressed — so a missing drug means no Part D record, never zero. This is a factual claims summary, not an endorsement, not medical advice, and not a consumer report. Source: CMS Medicare Part D Prescribers — by Provider and Drug.
Practice location
Mailing address
Additional practice locations (2)
- 2486 W El Camino RealMountain View, CA 94040-1421Phone: (408) 808-6102
- 500 Tully RdSan Jose, CA 95111-1917Phone: (408) 808-6102
Registry dates
- Enumerated
- 2009-04-06
- Last updated
- 2023-04-20
- Certified
- 2023-04-20
Frequently asked questions
- What is Robert Lum's NPI number?
- Robert Lum's National Provider Identifier (NPI) is 1578706503, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Lum's specialty?
- Robert Lum is listed in the NPPES registry with a primary specialty of Dentist (Dental Providers).
- Where is Robert Lum located?
- Robert Lum's practice location on file with NPPES is 660 S Fair Oaks Ave, Sunnyvale, CA 94086-7913.
- What is Robert Lum's phone number?
- The practice phone number listed in the NPPES registry for Robert Lum is (408) 808-6102.
- Does Robert Lum accept Medicare?
- Robert Lum is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Lum's NPI active?
- Yes — Robert Lum's NPI (1578706503) is active in the NPPES registry as of the last update on 2023-04-20.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.