Alexander Y. Chen, MD
Cardiovascular Disease Physician · Redwood City, CA
Alexander Y. Chen, MD is a cardiovascular disease physician with a practice address in Redwood City, California, and NPI 1538248281, issued on Nov 3, 2006. Check the license (California A73705, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Alexander Y. Chen
- Credential
- MD
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- A73705 CA
Self-reported in NPPES; status is on the state search - Practice location
- 1150 Veterans Blvd, Redwood City, CA 94063
- Phone
- (650) 299-2000
- Enumerated
- Nov 3, 2006
- Record last updated
- Dec 13, 2021 (not updated in 5 years: call before relying on the address or phone)
- Medicaid ID
- 00A737050 CA
- Medicare enrollment
- Enrolled (PECOS I20051013000605); accepts Medicare assignment
- Medical or professional school
- University Of California, Davis School Of Medicine, 1999
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 2,574 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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- Anil Assudani, M.D,Psychiatry Physician1497753909
- Everett Austin, MDNeurology Physician1083792642
- Lauren Bacon, DPTPhysical Therapist1295167583
Verify Alexander Y. Chen in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A73705Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
58% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024
1,284 Medicare Part D claims for 367 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 15% of claims.
Most prescribed
- Metoprolol Tartrate161 claims
- Metoprolol Succinate97 claims
- Furosemide87 claims
- Amiodarone Hcl78 claims
- Atorvastatin Calcium74 claims
- Pradaxa70 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.
Industry payments in 2024: $25.43
1 payment: food and beverage; the largest payer was Pfizer Inc. The 16,686 providers of this specialty with any payment received $3,819.56 on average. Payments are reported by manufacturers, not by the provider, and are not a sign of wrongdoing.
Source: CMS Open Payments, program year 2024 (openpaymentsdata.cms.gov); average among providers of this specialty with at least one payment.
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 Y. Chen among 2,574 cardiovascular disease physician records in California
Alexander Y. Chen, MD is one of 2,574 cardiovascular disease physician records with a practice address in California. 83% 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 10% of them.
- NPI issued2006 · 10% of these records are older, 45% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated1999 · median 1999 among the 1,742 with a school on file
- Record last updated2021 · 63% of these records were not updated in five years or more
Source: CMS NPPES, file of Aug 9, 2026, every record with primary taxonomy 207RC0000X and a California practice address; Medicare files: CMS Part D Prescribers 2024, MIPS 2023, Open Payments 2024, Doctors and Clinicians (data.cms.gov).
Cardiovascular Disease Physician providers in California
There are 2,574 cardiovascular disease physician records in California.
All 2,574 in California → Every provider in Redwood City → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Robert Blumberg, MDRedwood City, CA 940631336227990
- Ramesh Lingamneni, MDRedwood City, CA 940631023196672
- Shalini Bhambani, M.D.Redwood City, CA 940621558635474
- Tomoaki Hinohara, M.D.Redwood City, CA 940621225081102
- Henry Huang, MDRedwood City, CA 940621063562882
- Aarif Khakoo, M.D.Woodside, CA 940621497849111
- Mary Larson, M.D.Redwood City, CA 940621982650040
- Bruce McAuley, M.D.Redwood City, CA 940621639123524
Common questions
What is Alexander Y. Chen, MD's NPI number?
Alexander Y. Chen, MD's National Provider Identifier (NPI) is 1538248281, issued on Nov 3, 2006. An NPI identifies a provider in billing; it is not a license.
Where is Alexander Y. Chen, MD located?
The NPPES record lists a practice address at 1150 Veterans Blvd, Redwood City, CA, 94063. Phone: (650) 299-2000. Providers update this record themselves, so call before visiting.
How can I verify Alexander Y. Chen, MD's license?
NPPES lists California license number A73705, 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 Y. Chen, MD prescribe under Medicare Part D?
In 2024, Alexander Y. Chen, MD had 1,284 Medicare Part D claims for 367 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. 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.