Alexander Loh
Internal Medicine Physician · Redwood City, CA
Alexander Loh is an internal medicine physician with a practice address in Redwood City, California, and NPI 1689314700, issued on Mar 29, 2022. Check the license (California A191187, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Alexander Loh
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A191187 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1100 Veterans Blvd, Redwood City, CA 94063
- Phone
- (650) 299-2000
- Enumerated
- Mar 29, 2022
- Record last updated
- Aug 9, 2025
- Medicare enrollment
- Enrolled (PECOS I20250924002380); accepts Medicare assignment
- Medical or professional school
- University Of California, San Diego School Of Medicine, 2022
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 1100 Veterans Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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- Deepti Baheti, M.B.B.SInternal Medicine Physician1720429319
- Dynah BartePharmacist1902441892
- Krista Bartlett, PA-CPhysician Assistant1578828117
- Liam Bosch, MDAdult Reconstructive Orthopaedic Surgery Physician1750814554
- Wesley Briones, PT, DPTPhysical Therapist1336624733
Verify Alexander Loh in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A191187Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
96% fewer Medicare Part D claims than the average internal medicine physician in 2024
130 Medicare Part D claims for 53 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D.
Most prescribed
- Furosemide17 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.
Bills Medicare through one group practice
- Permanente Medical Group IncRedwood City, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Alexander Loh among 17,696 internal medicine physician records in California
Alexander Loh is one of 17,696 internal medicine 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 2022, is newer than 95% of them.
- NPI issued2022 · 95% of these records are older, 2% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2022 · median 2004 among the 11,065 with a school on file
- Record last updated2025 · 61% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207R00000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
85 internal medicine physician records list a practice address in Redwood City
They are 85 of the 2,795 NPPES records with a practice address in Redwood City, and 17,696 internal medicine physician records in California.
All 17,696 in California → Every provider in Redwood City → Internal Medicine Physician nationwide →
The 8 internal medicine physician records with the nearest ZIP codes
- Sona Aggarwal, MDRedwood City, CA 940631417065228
- Wilma Arguelles-Gaviola, MDRedwood City, CA 940631740368398
- Srinivasa Ashokkumar, M.DRedwood City, CA 940631134126329
- Henry Brodkin, MDRedwood City, CA 940631770661324
- Betty Ho, MDRedwood City, CA 940631922186568
- Khorshed Madan, M.D.Redwood City, CA 940631366464356
- Alison Pachynski, MD MPHRedwood City, CA 940631013090810
- Marie President, M.DRedwood City, CA 940631083621379
Common questions
What is Alexander Loh's NPI number?
Alexander Loh's National Provider Identifier (NPI) is 1689314700, issued on Mar 29, 2022. An NPI identifies a provider in billing; it is not a license.
Where is Alexander Loh located?
The NPPES record lists a practice address at 1100 Veterans Blvd, Redwood City, CA, 94063. Phone: (650) 299-2000. Providers update this record themselves, so call before visiting.
How can I verify Alexander Loh's license?
NPPES lists California license number A191187, 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 Alexander Loh prescribe under Medicare Part D?
In 2024, Alexander Loh had 130 Medicare Part D claims for 53 beneficiaries; the average among internal medicine physician prescribers was 3,176. 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.