Ho-Hin Choy, M.D.
Cardiovascular Disease Physician · Fairfield, CA
Ho-Hin Choy, M.D. is a cardiovascular disease physician with a practice address in Fairfield, California, and NPI 1083008262, issued on Mar 25, 2015. Check the license (California A145348, as entered in NPPES) on the Medical Board of California; the Medicare figures below come from public CMS files.
- Name
- Ho-Hin Choy
- Credential
- M.D.
- Primary taxonomy
- Cardiovascular Disease Physician 207RC0000X
- License number
- A145348 CA
Self-reported in NPPES; status is on the state search - Practice location
- 2458 Hilborn RD, Fairfield, CA 94534
- Phone
- (707) 646-4400
- Enumerated
- Mar 25, 2015
- Record last updated
- Nov 6, 2025
- Medicare enrollment
- Enrolled (PECOS I20220524001791); accepts Medicare assignment
- Telehealth
- Offers telehealth (CMS)
- Entity
- Type 1 · individual
8 nearest cardiovascular disease physician records → All 2,574 in California → Look up another NPI →
Also registered at 2458 Hilborn RD
A shared address usually means a shared clinic or building; it does not show who employs whom.
- Amanda Adkins, M.D.Internal Medicine Physician1568635704
- Michelle Church, M.D.Pediatric Adolescent Medicine Physician1659426575
- Sarah Digeorge, NPAcute Care Nurse Practitioner1598443897
- Kalsang Dorji, DNP, FNP-BCFamily Nurse Practitioner1861056640
- Judith Flandez, PA-CPhysician Assistant1316482250
- Douglas Freeman, M.D.Family Medicine Physician1588760110
Verify Ho-Hin Choy in five checks
- 1IdentityNPI record in CMS NPPESNPI lookupConfirmed in NPPES
- 2LicenseActive license and public ordersMedical Board of California
Search for license A145348Check the board - 3Other statesLicenses and actions elsewhereDocInfo (FSMB)Not checked
- 4ExclusionsMedicare and Medicaid bansHHS-OIG exclusion listNot checked
- 5CertificationBoard certificationABMS AOA NCCPA AANPNot checked
45% fewer Medicare Part D claims than the average cardiovascular disease physician in 2024
1,687 Medicare Part D claims for 355 beneficiaries, against an average of 3,078 among the 20,728 providers of this specialty who prescribed in Part D. Brand-name drugs were 23% of claims.
Most prescribed
- Metoprolol Succinate344 claims
- Furosemide165 claims
- Eliquis122 claims
- Clopidogrel109 claims
- Carvedilol103 claims
- Amlodipine Besylate88 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: $3,966.90
68 payments; by number, the most common kind was food and beverage; the largest payer was Abbott Laboratories. 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 2 group practices
- Northbay Health Medical FoundationFairfield, CA
- Northbay Physicians Surgery Center, LLCFairfield, CA
Source: CMS Doctors and Clinicians National Downloadable File (the group practices a clinician bills Medicare through) (data.cms.gov).
Ho-Hin Choy among 2,574 cardiovascular disease physician records in California
Ho-Hin Choy, M.D. 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 2015, is newer than 86% of them.
- NPI issued2015 · 86% of these records are older, 12% newer
- In a Medicare fileYes · 83% of these records are
- In the CMS Doctors and Clinicians fileYes · 68% of these records are
- Graduated2015 · median 1999 among the 1,742 with a school on file
- Record last updated2025 · 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 Fairfield → Cardiovascular Disease Physician nationwide →
The 8 cardiovascular disease physician records with the nearest ZIP codes
- Alan ValentinFairfield, CA 945341689508822
- Nathan Anderson, M.D.Travis Afb, CA 945351861698656
- Mehdi Azadi, MDTravis Afb, CA 945351679788723
- Jeffrey Breneisen, MDFairfield, CA 945331629058615
- Richard Clark, M.DTravis Afb, CA 945351073718052
- Gurinder Dhillon, MDFairfield, CA 945331669490454
- Milind Dhond, M. D.Fairfield, CA 945331972500676
- Stephanie Howes, DOTravis Afb, CA 945351386265544
Common questions
What is Ho-Hin Choy, M.D.'s NPI number?
Ho-Hin Choy, M.D.'s National Provider Identifier (NPI) is 1083008262, issued on Mar 25, 2015. An NPI identifies a provider in billing; it is not a license.
Where is Ho-Hin Choy, M.D. located?
The NPPES record lists a practice address at 2458 Hilborn RD, Fairfield, CA, 94534. Phone: (707) 646-4400. Providers update this record themselves, so call before visiting.
How can I verify Ho-Hin Choy, M.D.'s license?
NPPES lists California license number A145348, 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 Ho-Hin Choy, M.D. prescribe under Medicare Part D?
In 2024, Ho-Hin Choy, M.D. had 1,687 Medicare Part D claims for 355 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.