DR. HO-HIN CHOY M.D.
NPI 1083008262
Internal Medicine - Cardiovascular Disease in Fairfield, CA

Active since March 25, 2015PECOS EnrolledAccepts Medicare Assignment
2458 HILBORN RD, FAIRFIELD, CA 94534(707) 646-4400 Get Directions Write a Review

NPPES record last updated: November 6, 2025. Verified against the NPPES registry weekly; last sync: August 09, 2026.

Record update history: Nov 6, 2025, Nov 18, 2021 (2 updates tracked since 2021).

About Dr. Ho-hin Choy M.d. NPPES

Official registry information on file with the National Plan and Provider Enumeration System.

DR. HO-HIN CHOY M.D. (NPI 1083008262) is an individual cardiovascular disease provider in Fairfield, California, licensed in California (A145348) and active in the NPI registry since March 2015. He is enrolled in Medicare PECOS and is a graduate of Other (2015).

NPPES Registry Identity

NPI1083008262
Entity TypeIndividualMale
Primary Taxonomy207RC0000X
Provider Legal NameDR. HO-HIN CHOYCredential: M.D.
Location Address2458 HILBORN RDFairfield, CA 94534-1072
Mailing Address2458 Hilborn RdFairfield, CA 94534-1072 · (707) 646-4400
Sole ProprietorYes
Medical School CMSOtherGraduated 2015
Enumeration DateMarch 25, 2015
Last NPPES UpdateNovember 6, 20252 updates tracked since enumeration
NPPES CertifiedNovember 6, 2025
NPI 1083008262 is a valid, active identifier and passes the ISO check-digit test.

Specialties & Licenses 2

Primary SpecialtyInternal Medicine · Cardiovascular DiseaseAllopathic & Osteopathic Physicians
Taxonomy Code207RC0000X
License Licensed in CA · A145348
Definition
An internist who specializes in diseases of the heart and blood vessels and manages complex cardiac conditions such as heart attacks and life-threatening, abnormal heartbeat rhythms.
Also ListedInternal Medicine · Interventional CardiologyTaxonomy 207RI0011X · License A145348 (CA)
2458 HILBORN RD, Fairfield, CA 94534

Medicare Participation & PECOS CMS

Medicare enrollment, assignment, and ordering and referring status from the CMS PECOS system.

Medicare Enrollment Status

Enrolled in Medicare and accepts Medicare assignment

Dr. Ho-hin Choy M.d. is registered in PECOS and agrees to accept the Medicare-approved amount as full payment. Medicare patients are not billed beyond the standard deductible and coinsurance.

PECOS PAC ID7911275201
PECOS Enrollment IDI20220524001791
Eligible to Order & Refer Part B Labs & Imaging Durable Medical Equipment Home Health Agency Power Mobility DevicesPer the CMS Ordering and Referring file. Eligibility means Medicare pays claims that this provider orders or refers for these categories.

Areas of Expertise CMS Part B claims 22

Services this provider delivered to Medicare fee-for-service patients, from the CMS Medicare utilization data. Higher counts generally reflect more experience with a service; care delivered outside Medicare is not included.

Low osmolar contrast material, 300-399 mg/ml iodine concentration, per ml Q9967
Low osmolar contrast material with 300-399 mg/ml iodine concentration is a diagnostic tool used in imaging procedures. It helps to enhance the visibility of specific areas in the body, aiding in accurate diagnosis. It's safe and generally well-tolerated by patients.
1,080 services14 patients
Established patient office or other outpatient visit with moderate level of decision making, if using time, 30 minutes or more 99214
This is a routine check-up for patients who have previously visited our clinic. It involves a comprehensive review of your health and any ongoing treatments. The consultation lasts between 30-39 minutes, allowing enough time to discuss any concerns.
218 services153 patients
Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306
This is a heart ultrasound, also known as an echocardiogram. It uses sound waves to create pictures of your heart, showing how blood flows through it. The color depicts the blood flow's speed and direction. It also checks the heart's valves to ensure they're working properly.
207 services200 patients
Routine electrocardiogram (ecg) using at least 12 leads with interpretation and report 93000
An electrocardiogram (ECG) is a non-invasive test that records your heart's electrical activity. Using 12 leads attached to your body, it captures data to help identify heart conditions. A doctor interprets the results and provides a report.
135 services133 patients
Ultrasound of heart with color-depicted blood flow, rate, direction and valve function 93306
This is a heart ultrasound, also known as an echocardiogram. It uses sound waves to create pictures of your heart, showing how blood flows through it. The color depicts the blood flow's speed and direction. It also checks the heart's valves to ensure they're working properly.
86 services85 patients
Established patient office or other outpatient visit with low level od decision making, if using time, 20 minutes or more 99213
This is a routine visit for patients who have already been seen by the healthcare provider. During this approximately 20-29 minute appointment, your health status will be evaluated and any necessary treatments or tests will be discussed. It's a chance to address any health concerns you may have.
66 services61 patients

Physician Visit Costs CMS claims · ZIP area

Typical Medicare office-visit costs in the 94534 ZIP code area, from fee-for-service claims. These are area statistics, not this provider’s prices; actual charges vary by service and coverage.

New Patient
$145.83 typical visit price
range $65.02 – $191.95
Typical copayment $36.45 (range $16.25 – $47.98)
Most-billed visit code 99204
Established Patient
$80.24 typical visit price
range $21.86 – $157.69
Typical copayment $20.06 (range $5.46 – $39.42)
Most-billed visit code 99213
Amounts reflect what Medicare beneficiaries in this ZIP area are typically charged for office visits. Patients with other coverage should check their individual plans.

Other Providers at the Same Location NPPES 14

Providers registered at the same practice address, or within the immediate area, according to the NPPES registry.

Family Medicine
2458 HILBORN RD
FAIRFIELD, CA 94534
Physician Assistant
2458 HILBORN RD
FAIRFIELD, CA 94534
Pediatrics
2458 HILBORN RD
FAIRFIELD, CA 94534
Nurse Practitioner (Family)
2458 HILBORN RD
FAIRFIELD, CA 94534
Internal Medicine
2458 HILBORN RD
FAIRFIELD, CA 94534
Family Medicine
2458 HILBORN RD
FAIRFIELD, CA 94534
Nurse Practitioner (Acute Care)
2458 HILBORN RD
FAIRFIELD, CA 94534
Pediatrics (Adolescent Medicine)
2458 HILBORN RD
FAIRFIELD, CA 94534

Frequently Asked Questions NPPES & CMS

Common questions about this NPI record, answered from the official NPPES registry and CMS datasets shown on this page.

What is Ho-hin Choy's NPI number?

The NPI number for Ho-hin Choy is 1083008262. It was assigned to this individual provider in the NPPES registry on March 25, 2015.

Where is Ho-hin Choy located?

Ho-hin Choy practices at 2458 Hilborn Rd, Fairfield, CA 94534. The listed phone number is (707) 646-4400.

What is Ho-hin Choy's specialty?

The primary specialty registered for this NPI is Internal Medicine, specializing in Cardiovascular Disease, with taxonomy code 207RC0000X.

Is Ho-hin Choy enrolled in Medicare?

Yes. Ho-hin Choy is registered in the Medicare PECOS system and accepts Medicare assignment, which means accepting the Medicare-approved amount as payment in full for covered services.

When was this NPI record last updated?

The NPPES record for Ho-hin Choy was last updated on November 6, 2025. NPI Profile syncs weekly with the NPPES registry data releases published by CMS. This NPI record was last updated 9 months ago. If this record has changed at CMS more recently, you can request an on-demand re-check against the live CMS registry, directly from this page.