Robert Lo, M.D.
Allergy & Immunology Physician · South San Francisco, CA
Robert Lo, M.D. is an allergy & immunology physician with a practice address in South San Francisco, California, and NPI 1710928999, issued on Jun 9, 2006. Check the license (California A71003, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Robert Lo
- Credential
- M.D.
- Primary taxonomy
- Allergy & Immunology Physician 207K00000X
- License number
- A71003 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1200 EL Camino Real, South San Francisco, CA 94080
- Phone
- (650) 742-2147
- Enumerated
- Jun 9, 2006
- Record last updated
- Dec 13, 2021 (not updated in 5 years: call before relying on the address or phone)
- Fax
- (650) 742-2862
- Medicaid ID
- 00A710030 CA
- Entity
- Type 1 · individual
8 nearest allergy & immunology physician records → All 444 in California → Look up another NPI →
Also registered at 1200 EL Camino Real
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Leslie Adams, PHARMDPharmacist1902338486
- Kristine Aguirre, RRTRegistered Respiratory Therapist1528539996
- Lena AlazzehPhysical Therapist1629739859
- Kate AlbeePhysical Therapist1053464495
- Jason Anderson, MDHospitalist Physician1831277466
- Karl Anderson, MDUrology Physician1700964301
Verify Robert Lo in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A71003Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
42% fewer Medicare Part D claims than the average allergy & immunology physician in 2024
432 Medicare Part D claims for 125 beneficiaries, against an average of 741 among the 2,899 providers of this specialty who prescribed in Part D. Brand-name drugs were 28% of claims.
Most prescribed
- Breyna68 claims
- Azelastine Hcl65 claims
- Fluticasone Propionate47 claims
- Wixela Inhub47 claims
- Spiriva Respimat27 claims
- Albuterol Sulfate Hfa26 claims
Source: CMS Medicare Part D Prescribers by Provider and Drug, 2024 (data.cms.gov). Part D covers prescriptions for Medicare patients only; drugs with fewer than 11 claims are not published.
Robert Lo among 444 allergy & immunology physician records in California
Robert Lo, M.D. is one of 444 allergy & immunology physician records with a practice address in California. 79% of them appear in a Medicare file (Part D prescribing, MIPS, Open Payments or Medicare group billing); this one does. Its NPI, issued in 2006, is newer than 7% of them.
- NPI issued2006 · 7% of these records are older, 53% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileNo · 63% of these records are
- Record last updated2021 · 62% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207K00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Allergy & Immunology Physician providers in California
There are 444 allergy & immunology physician records in California.
All 444 in California → Every provider in South San Francisco → Allergy & Immunology Physician nationwide →
The 8 allergy & immunology physician records with the nearest ZIP codes
- Shilpa Desai, M.D.South San Francisco, CA 940801235369968
- Maria Serwonska, MDSouth San Francisco, CA 940801376621995
- Daniel Cerrone, M.D.Sunnyvale, CA 940851285079426
- Renu Gandhe, MDSunnyvale, CA 940851609138874
- Pearl Scott, MDSunnyvale, CA 940851174695910
- Alanna Stinson, MDSunnyvale, CA 940851922538826
- Rajashri Iyengar, M.D.San Carlos, CA 940701811004476
- Suzanne Henderson, MDRedwood City, CA 940631922452341
Common questions
What is Robert Lo, M.D.'s NPI number?
Robert Lo, M.D.'s National Provider Identifier (NPI) is 1710928999, issued on Jun 9, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Robert Lo, M.D. located?
The NPPES record lists a practice address at 1200 EL Camino Real, South San Francisco, CA, 94080. Phone: (650) 742-2147. Providers update this record themselves, so call before visiting.
How can I verify Robert Lo, M.D.'s license?
NPPES lists California license number A71003, as entered by the provider. Search the Medical Board of California at https://www.mbc.ca.gov/License-Verification/default.aspx. The NPPES record confirms identity only; the state search shows license status, expiration and public orders.
How much does Robert Lo, M.D. prescribe under Medicare Part D?
In 2024, Robert Lo, M.D. had 432 Medicare Part D claims for 125 beneficiaries; the average among allergy & immunology physician prescribers was 741. Part D covers Medicare prescriptions only.
Source: CMS National Plan and Provider Enumeration System (NPPES), file of Aug 9, 2026 (NPPES files on CMS.gov); NUCC Health Care Provider Taxonomy. Medicare files from data.cms.gov. An NPI identifies who bills; it is not a license.
Figures on PlainDoctor are read from the federal files each page names (CMS NPPES, Medicare Part D, MIPS, Open Payments; the HHS-OIG exclusion list only as counts) and from Census population estimates, with the file date shown beside them. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of Aug 9, 2026.