Robert Lo, M.D.
NPI 1710928999 · Allergy & Immunology Physician · South San Francisco, CA
Enrolled with Medicare as Practitioner - Allergy/Immunology · source: CMS PECOS Public Provider Enrollment (2026.04.01)
Robert Lo, M.D. is a Allergy & Immunology Physician provider in South San Francisco, CA (NPI 1710928999).
Provider details
- NPI number
- 1710928999
- Entity type
- Individual
- Primary specialty
- Allergy & Immunology PhysicianAllopathic & Osteopathic Physicians
- Credential
- M.D.
- Sex
- Male
- Sole proprietor
- No
- License
- A71003 (CA)
Specialties & taxonomies
Allopathic & Osteopathic Physicians
Allopathic & Osteopathic Physicians
Profile Score
A profile completeness & documented-activity index — NOT a quality, outcomes, or patient-satisfaction rating.
- Registry tenure38% of score
20 yrs in NPPES registry
- Profile completeness38% of score
100% of core fields populated
- Practice footprint23% of score
1 documented practice location
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 · 10 distinct drugs on file.
| Drug | Part D claims (2024) | Beneficiaries |
|---|---|---|
| Budesonide/Formoterol Fumaratebrand: Breyna | 68 | 28 |
| Azelastine Hcl | 65 | 28 |
| Fluticasone Propion/Salmeterolbrand: Wixela Inhub | 47 | 16 |
| Fluticasone Propionate | 47 | 19 |
| Tiotropium Bromidebrand: Spiriva Respimat | 27 | — |
| Albuterol Sulfatebrand: Albuterol Sulfate Hfa | 26 | 13 |
| Montelukast Sodium |
Practice location
Mailing address
Registry dates
- Enumerated
- 2006-06-09
- Last updated
- 2021-12-13
Frequently asked questions
- What is Robert Lo's NPI number?
- Robert Lo's National Provider Identifier (NPI) is 1710928999, a unique 10-digit ID issued by CMS for use in standard healthcare transactions.
- What is Robert Lo's specialty?
- Robert Lo is listed in the NPPES registry with a primary specialty of Allergy & Immunology Physician (Allopathic & Osteopathic Physicians).
- Where is Robert Lo located?
- Robert Lo's practice location on file with NPPES is 1200 El Camino Real, South San Francisco, CA 94080-3208.
- What is Robert Lo's phone number?
- The practice phone number listed in the NPPES registry for Robert Lo is (650) 742-2147.
- Does Robert Lo accept Medicare?
- Robert Lo is approved to bill Medicare according to CMS PECOS enrollment data (2026.04.01). Confirm current participation with the provider before scheduling.
- Is Robert Lo's NPI active?
- Yes — Robert Lo's NPI (1710928999) is active in the NPPES registry as of the last update on 2021-12-13.
Source: CMS NPPES Data Dissemination (June 2026). NPI Central is not affiliated with CMS. Data is provided as-is from the public registry.