Amy I-Hui Chuang, MD
Internal Medicine Physician · Redwood City, CA
Amy I-Hui Chuang, MD is an internal medicine physician with a practice address in Redwood City, California, and NPI 1952433740, issued on Mar 9, 2007. Check the license (California A90243, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Amy I-Hui Chuang
- Credential
- MD
- Primary taxonomy
- Internal Medicine Physician 207R00000X
- License number
- A90243 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1150 Veterans Blvd, Redwood City, CA 94063
- Phone
- (650) 299-2015
- Enumerated
- Mar 9, 2007
- Record last updated
- Dec 9, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicare enrollment
- Enrolled (PECOS I20070601000597); accepts Medicare assignment
- Medical or professional school
- Saint Louis University School Of Medicine, 2003
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest internal medicine physician records → All 17,696 in California → Look up another NPI →
Also registered at 1150 Veterans Blvd
A shared address usually means a shared clinic or building; it does not show who employs whom.
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Verify Amy I-Hui Chuang in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A90243Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
79% fewer Medicare Part D claims than the average internal medicine physician in 2024
681 Medicare Part D claims for 355 beneficiaries, against an average of 3,176 among the 108,855 providers of this specialty who prescribed in Part D. 11 claims were for opioids.
Most prescribed
- Amoxicillin-Clavulanate Potass37 claims
- Fluticasone Propionate29 claims
- Amlodipine Besylate25 claims
- Doxycycline Monohydrate23 claims
- Losartan Potassium23 claims
- Atorvastatin Calcium20 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).
Amy I-Hui Chuang among 17,696 internal medicine physician records in California
Amy I-Hui Chuang, MD 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 2007, is newer than 44% of them.
- NPI issued2007 · 44% of these records are older, 44% newer
- In a Medicare fileYes · 79% of these records are
- In the CMS Doctors and Clinicians fileYes · 63% of these records are
- Graduated2003 · median 2004 among the 11,065 with a school on file
- Record last updated2021 · 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 Amy I-Hui Chuang, MD's NPI number?
Amy I-Hui Chuang, MD's National Provider Identifier (NPI) is 1952433740, issued on Mar 9, 2007. An NPI identifies a provider in billing; it is not a license.
Where is Amy I-Hui Chuang, MD located?
The NPPES record lists a practice address at 1150 Veterans Blvd, Redwood City, CA, 94063. Phone: (650) 299-2015. Providers update this record themselves, so call before visiting.
How can I verify Amy I-Hui Chuang, MD's license?
NPPES lists California license number A90243, 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 Amy I-Hui Chuang, MD prescribe under Medicare Part D?
In 2024, Amy I-Hui Chuang, MD had 681 Medicare Part D claims for 355 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.