David Hyun, MD
Cardiovascular Disease Physician · San Jose, CA
David Hyun, MD is a cardiovascular disease physician with a practice address in San Jose, California, and NPI 1255312005, issued on Nov 9, 2005. Check the license (California A56256, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- David Hyun
- Credential
- MD
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License numbers
- A56256 CA
10025R LA
Self-reported in NPPES; status is on the state search - Practice location
- 2020 Forest Ave Ste. 3, San Jose, CA 95128
- Phone
- (408) 298-0433
- Enumerated
- Nov 9, 2005
- Record last updated
- May 6, 2023
- Fax
- (408) 295-8818
- Medicare enrollment
- Enrolled (PECOS I20041008001312); accepts Medicare assignment
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 2,574 in California → Look up another NPI →
Verify David Hyun in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A56256Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
53% more Medicare Part D claims than the average cardiovascular disease physician in 2024
4,716 Medicare Part D claims for 446 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. 17 claims were for opioids.
Most prescribed
- Atorvastatin Calcium369 claims
- Amlodipine Besylate302 claims
- Eliquis267 claims
- Losartan Potassium213 claims
- Spironolactone172 claims
- Ezetimibe150 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.
The MIPS final score for 2023 (Medicare payment program): 100 of 100
The Merit-based Incentive Payment System score is reported for this clinician. Four categories are weighted into the final score; the average among 454,083 clinicians with a measured score was 83.5.
Source: CMS Quality Payment Program, MIPS performance year 2023; category weights for 2023 (qpp.cms.gov).
Industry payments in 2024: $1,079.49
49 payments; by number, the most common kind was food and beverage; the largest payer was E.R. Squibb & Sons, L.L.C. 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
- County OF Santa ClaraSan Jose, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
David Hyun among 2,574 cardiovascular disease physician records in California
David Hyun, 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 2005, is newer than 0% of them.
- NPI issued2005 · 0% of these records are older, 90% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated1993 · median 1999 among the 1,742 with a school on file
- Record last updated2023 · 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 San Jose → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Meenakshi Aggarwal, MDSan Jose, CA 951281669560249
- Silpa Avula, M.D.San Jose, CA 951281386675981
- Pascual Izquierdo, M.D.San Jose, CA 951281518919687
- Amir Kaykha, M.D.San Jose, CA 951281639375959
- Mehrdad Rezaee, MD PHDSan Jose, CA 951281629056692
- Jayakumar Sreenivasan, M.D, MSCSan Jose, CA 951281821541061
- James Weidner, M.D.San Jose, CA 951281396892162
- Elizabeth Yu, MDSan Jose, CA 951281346459179
Common questions
What is David Hyun, MD's NPI number?
David Hyun, MD's National Provider Identifier (NPI) is 1255312005, issued on Nov 9, 2005. An NPI identifies a provider in billing; it is not a license.
Where is David Hyun, MD located?
The NPPES record lists a practice address at 2020 Forest Ave Ste. 3, San Jose, CA, 95128. Phone: (408) 298-0433. Providers update this record themselves, so call before visiting.
How can I verify David Hyun, MD's license?
NPPES lists California license number A56256, 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 David Hyun, MD prescribe under Medicare Part D?
In 2024, David Hyun, MD had 4,716 Medicare Part D claims for 446 beneficiaries; the average among cardiovascular disease physician prescribers was 3,078. Part D covers Medicare prescriptions only.
What is David Hyun, MD's MIPS final score?
The 2023 MIPS final score is 100 of 100. The average among 454,083 clinicians with a measured score was 83.5.
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.